Kjetil Obstfelder Uhlen
About
Kjetil Uhlen (1961) is a Professor at the Department of Electric Power Engineering. He is head of the Power Systems research group. Professor Uhlen has a PhD and a MSc in Control Engineering from NTNU.
Work Experience
- 2009- Professor, Electrical Power Systems, NTNU
- 2003-2009 Senior Research Scientist, SINTEF Energy Research
- 1996-2002 Research Scientist, SINTEF Energy Research
- 1987-1995 Research Scientist, The Norwegian Electric Power Research Institute (EFI)
Membership in Professional Societies
- IEEE; The Institute of Electrical and Electronics Engineers
- TEKNA: The Norwegian Association of Chartered Engineers
Committees and Task Forces
- Co-editor of IEEE Transactions on Power Systems
- International Energy Agency (IEA) Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD). Operating Agent and coordinator of Annex IV:- Transmission Systems (2009-2012).
- Norwegian member of CIGRE Study Committee C4, “System technical performance” (2004-2012). Convenor of Advisory Group C4.6 “Power system security assessment” (2004-2010).
- Cigre Working Group WG C4.601: ”Power system security assessment”. Member of WG (2004 - 2010).
- Cigre Task Force TF 38.02.23: ”Coordinated Voltage Control in transmission Networks”. Member of TF (2000-2004).
- Cigre Task Force TF 38.02.16: ”Impact on interaction among power system controls”. Member of TF (1997-2000).
- IEEE PES Power Systems Stability Subcommittee
- International Energy Agency (IEA) R&D Wind programme: Member of Task VIII: Study of decentralised applications for wind energy (1987 - 1991).
Recent Selected Projects
-
2009 - 2012 IEA Enard Annex IV “Transmission Systems”
Role: Operating Agent
Client: IEA Implementing Agreement on Electricity Networks Analysis, Research and Development (Enard). -
2009- NOWITECH – Norwegian Research Centre for Offshore Wind Technology
Role: Work package leader and member of centre management
Client: Research Centre financed by the Research Council of Norway together with Norwegian and Danish wind industry and power companies. -
2011- STRONg2rid – Smart Transmission Grid Operation and Control
Role: Project coordinator
Client: Nordic research project financed by Nordic Energy Research and the Nordic TSOs. With participation from the Nordic Universities (Aalto, DTU, KTH, Univ. of Iceland and NTNU) and the Nordic TSOs (Statnett, Svenska Kraftnãt, Fingrid and Landsnet).
Publications
2021
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil;
Sanchez Acevedo, Santiago;
D'Arco, Salvatore.
(2021)
Experimental Characterization of Methods for Connecting Real-Time Simulations and Synchrophasors.
2021 IEEE Madrid PowerTech.
Academic chapter/article
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Jóhannsson, Hjörtur.
(2021)
An Open Source Power System Simulator in Python for Efficient Prototyping of WAMPAC Applications.
2021 IEEE Madrid PowerTech.
Academic chapter/article
-
Monshizadeh, Shohreh;
Uhlen, Kjetil;
Hegglid, Gunne John.
(2021)
Transmission Loss Minimization Using Artificial Intelligent Algorithm for Nordic44 Network Model based on Hourly Load Variation.
IFAC-PapersOnLine.
volum 53 (2).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil Obstfelder.
(2021)
Nonlinear model predictive control of variable speed hydropower for provision of fast frequency reserves.
Electric power systems research.
volum 194.
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil Obstfelder.
(2021)
Variable Speed Hydropower for Provision of Fast Frequency Reserves in the Nordic Grid.
IEEE Transactions on Power Systems.
volum 36 (6).
Academic article
2020
-
Jakobsen, Sigurd Hofsmo;
Bombois, Xavier;
Uhlen, Kjetil.
(2020)
Non-intrusive identification of hydro power plants’ dynamics using control system measurements.
International Journal of Electrical Power & Energy Systems.
volum 122:106180.
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Optimized Control of Variable Speed Hydropower for Provision of Fast Frequency Reserves.
Electric power systems research.
volum 189 (106668).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Stability properties of nonlinear model predictive control of variable speed hydropower.
IET Control Theory & Applications.
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variabel hastighet i kraftverk.
Energiteknikk : fagbladet for energibransjen.
volum 133 (2).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variable Speed Hydropower Conversion and Control.
IEEE transactions on energy conversion.
volum 35 (1).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variable speed hydropower plant with virtual inertia control for provision of fast frequency reserves.
International Journal of Power and Energy Systems.
volum 41.
Academic article
-
Haugdal, Hallvar;
Uhlen, Kjetil;
Müller, Daniel;
Jóhannsson, Hjörtur.
(2020)
Estimation of Oscillatory Mode Activity from PMU Measurements.
2020 IEEE PES Innovative Smart Grid Technologies Europe - ISGT-Europe.
Academic chapter/article
2019
-
Berglund, Frida;
Zaferanlouei, Salman;
Korpås, Magnus;
Uhlen, Kjetil.
(2019)
Optimal Operation of Battery Storage for a Subscribed Capacity-Based Power Tariff Prosumer—A Norwegian Case Study.
Energies.
volum 12 (23).
Academic article
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Mode Shape Estimation using Complex Principal Component Analysis and k-Means Clustering.
IEEE SGSMA 2019 - The First IEEE International Coonference on Smart Grid Synchronized Measurements and Analytics.
Academic chapter/article
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Power Oscillation Monitoring using Statistical Learning Methods.
2019 IEEE Milan PowerTech.
Academic chapter/article
-
Hillberg, Emil;
Zegers, Antony;
Herndler, Barbara;
Wong, Steven;
Wong, Steven;
Pompee, Jean;
Bourmaud, Jean-Yves;
Lehnhoff, Sebastian;
Migliavacca, Gianluigi;
Uhlen, Kjetil;
Oleinikova, Irina;
Pihl, Hjalmar;
Norstrom, Markus;
Persson, Mattias;
Rossi, Joni;
Beccuti, Giovanni.
(2019)
Flexibility needs in the future power system.
2019.
Report
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2019)
Testing of a hydropower plant’s stability and performance using PMU and control system data in closed loop.
IET Generation, Transmission & Distribution.
volum 13 (23).
Academic article
-
Na, Shweta;
Kishor, Nand;
Uhlen, Kjetil;
Mohanty, Soumya R.
(2019)
Detecting instant of multiple faults on the transmission line and its types using time-frequency analysis.
IET Generation, Transmission & Distribution.
volum 13 (22).
Academic article
-
Solvang, Espen Hafstad;
Sperstad, Iver Bakken;
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2019)
Dynamic simulation of simultaneous HVDC contingencies relevant for vulnerability assessment of the nordic power system.
2019 IEEE Milan PowerTech.
Academic chapter/article
-
Uhlen, Kjetil.
(2019)
Resultatrapport NFR Project no 246784: Operation of the Smart Grid With Wide Area Information.
2019.
Report
-
Uhlen, Kjetil;
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta.
(2019)
Operation and Control of hybrid AC/DC transmission grids.
Proceeding 45th Annual Conference of the IEEE Industrial Electronics Society - IECON 2019.
Academic chapter/article
2018
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Merz, Karl Otto.
(2018)
Offshore Wind energy technology.
John Wiley & Sons. 2018. ISBN 978-1-119-09779-2.
Scientific anthology
-
Andresen, Christian Andre;
Torsæter, Bendik Nybakk;
Haugdal, Hallvar;
Uhlen, Kjetil.
(2018)
Fault Detection and Prediction in Smart Grids.
2018 IEEE 9th International Workshop on Applied Measurements for Power Systems - AMPS.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Kalemba, Lester;
Uhlen, Kjetil.
(2018)
Using Decentralized Control Techniques for Interaction Analysis in Hybrid AC/DC Grids.
2018 IEEE Power & Energy Society General Meeting - PESGM.
Academic chapter/article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2018)
Development of a test system for identification of turbine dynamics using the dc power flow.
IFAC-PapersOnLine.
volum 51 (2).
Academic article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil;
Bombois, Xavier.
(2018)
Identification of Hydro turbine governors using PMU data.
2018 IEEE International Conference on Probabilistic Methods Applied to Power Systems - PMAPS.
Academic chapter/article
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2018)
Stability Assessment of Power Systems Based on a Robust Sum-of-Squares Optimization Approach.
2018 Power Systems Computation Conference PSCC.
Academic chapter/article
-
Karlsen, David;
Uhlen, Kjetil;
Vormedal, L.
(2018)
Introducing PMU-based Applications in the Control Room Setting.
CIGRE, Session Proceedings 2018.
Academic chapter/article
-
Negi, Sanjay S.;
Kishor, Nand;
Negi, Richa;
Uhlen, Kjetil.
(2018)
Event signal characterization for disturbance interpretation in power grid.
2018 First International Colloquium on Smart Grid Metrology (SmaGriMet).
Academic chapter/article
-
Parreiras, TJMA;
Gomes, S;
Taranto, Glauco Nery;
Uhlen, Kjetil.
(2018)
Closest security boundary for improving oscillation damping through generation redispatch using eigenvalue sensitivities.
Electric power systems research.
volum 160.
Academic article
-
Sanchez Acevedo, Santiago;
Duong, Dinh Thuc;
Taffese, Abel Assegid;
Uhlen, Kjetil;
Tedeschi, Elisabetta.
(2018)
Performance evaluation of the empirical method for online detection of power oscillations: a multiterminal HVDC application.
44th Annual Conference of the IEEE Industrial Electronics Society.
Academic chapter/article
-
Solvang, Espen Hafstad;
Uhlen, Kjetil.
(2018)
Dynamic Simulations of Simultaneous HVDC Contingencies in the Nordic Power System Considering System Integrity Protection Schemes.
2018.
Master thesis
-
Tuttelberg, Kaur;
Kilter, Jako;
Wilson, Douglas;
Uhlen, Kjetil.
(2018)
Estimation of Power System.
IEEE Transactions on Power Systems.
Academic article
2017
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
A Topology-based Scheme for Adaptive Underfrequency Load Shedding.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Bergna-Diaz, Gilbert;
Uhlen, Kjetil.
(2017)
Avoiding AC/DC grid interaction in MMC based MTDC Systems.
2017 Twelfth International Conference on Ecological Vehicles and Renewable Energies (EVER).
Academic chapter/article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2017)
Vector fitting for estimation of turbine governing system parameters.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Jha, Shailendra Kumar;
Støa, Petter;
Uhlen, Kjetil.
(2017)
Green and hybrid microgrid for rural electrification.
2016 IEEE Region 10 Humanitarian Technology Conference - R10-HTC.
Academic chapter/article
-
Negi, Sanjay Singh;
Kishor, Nand;
Kumar, Avinash;
Uhlen, Kjetil.
(2017)
Signal processing for time-frequency representation of synchro-phasor data.
IET Generation, Transmission & Distribution.
volum 11 (16).
Academic article
-
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil;
Negi, Richa.
(2017)
Event Detection and its Signal Characterization in PMU Data Stream.
IEEE Transactions on Industrial Informatics.
volum 13 (6).
Academic article
-
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil;
Negi, Richa.
(2017)
Post-processing algorithmfor damped and step-change events detection in PMU signals.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Polster, Stefan;
Renner, Herwig;
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
Voltage Stability Monitoring using a Modified Thevenin Impedance.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Schweta, NN;
Kishor, Nand;
Uhlen, Kjetil;
Soumya, Mohanty.
(2017)
Identification of coherency and critical generators set in real-time signal.
IET Generation, Transmission & Distribution.
volum 11 (18).
Academic article
-
Shweta, NN;
Kishor, Nand;
Uhlen, Kjetil;
Mohanty, S..
(2017)
Time-varying coherency study using TFC.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Zangmo, Gayleg;
Om, Khandu;
Uhlen, Kjetil.
(2017)
Impact of hydro-turbine and governor parameters on stability of grid connected power system.
International Journal on Electrical Engineering and Informatics.
volum 9 (2).
Academic article
2016
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil;
Bergna Diaz, Gilbert;
Beerten, Jef.
(2016)
Small-signal modelling of an MMC-based HVDC link interfacing large AC systems.
2016 IEEE 17th Workshop on Control and Modeling for Power Electronics, COMPEL 2016 : Proceedings.
Academic chapter/article
-
Dharmawardena, Hasala;
Uhlen, Kjetil;
Gjerde, Sverre Skalleberg.
(2016)
Modelling wind farm with synthetic inertia for power system dynamic studies.
2016 IEEE International Energy Conference (ENERGYCON).
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Jansson, Erik Alexander.
(2016)
Estimation of hydro turbine-governor system's transfer function from PMU measurements.
IEEE Power & Energy Society General Meeting.
volum 2016-November.
Academic article
-
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Anaya-Lara, Olimpo.
(2016)
Transient stability analysis in multi-terminal VSC-HVDC grids.
19th Power Systems Computation Conference PSCC 2016.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Coordinated Converter Control Strategy in Hybrid AC/DC Power Systems for System Frequency Support.
Energy Procedia.
volum 94.
Academic article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Global analysis of frequency stability and inertia in AC systems interconnected through an HVDC.
2016 IEEE International Energy Conference - ENERGYCON.
Academic chapter/article
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil.
(2016)
Model Predictive Load-Frequency Control.
IEEE Transactions on Power Systems.
volum 31 (1).
Academic article
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil;
Fabozzi, Davide;
Thornhill, Nina F..
(2016)
Model predictive load–frequency control taking into account imbalance uncertainty.
Control Engineering Practice.
volum 53.
Academic article
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2016)
Socio-economic impact of a rural microgrid.
2016 4th International Conference on the Developments in Renewable Energy Technology :ICDRET 2016.
Academic chapter/article
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2016)
Two-tier approach for the design of multiple power oscillation damping controllers.
IEEE conference proceedings. 2016. ISBN 978-1-4673-8463-6.
Scientific anthology
-
Kumar, Avinash;
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil.
(2016)
Signal processing and classification of synchro-phasor data.
Electrotechnical Conference (MELECON), 2016 18th Mediterranean.
Academic chapter/article
-
Sanchez Acevedo, Santiago;
Tedeschi, Elisabetta;
Uhlen, Kjetil;
Djustrom, Jam;
Ehnberg, Jimmy;
Segundo, Rafael;
Korba, Petr;
Oleinikova, Irina;
Mutule, Anna;
Hillberg, Emil.
(2016)
CloudGrid – the development of a transnational smart grid lab cooperation.
2016.
Report
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, T;
Matevosjana, J;
Nobel, F. A.;
Sørensen, P..
(2016)
Analytical techniques and tools for power balancing assessments.
Cigre Science & Engineering.
volum April (285).
Academic article
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, Takehiro;
Matevosjana, I;
Nobel, F. A.;
Sørensen, P..
(2016)
Analytical Techniques and tools for power balancing assessments.
CIGRE (International Council on Large Electric Systems). 2016. ISBN 978-2-85873-351-4. CIGRE Technical Brochure (648).
Report
2015
-
Dharmawardena, Hasala Indika;
Uhlen, Kjetil.
(2015)
Modeling variable speed Wind turbine for power system dynamic studies.
2015 IEEE Students Conference on Engineering and Systems (SCES).
Academic chapter/article
-
Duong, Dinh Thuc;
Kalemba, Lester;
Uhlen, Kjetil;
Løvlund, Stig.
(2015)
A scheme for coordinated secondary voltage control for systems with multiple VAr reserves.
2015 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015.
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Taranto, Glauco Nery;
Løvlund, Stig.
(2015)
A Comparative Case Study of Online Voltage Instability Monitoring.
PowerTech Eindhoven 2015.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Beerten, Jef;
Uhlen, Kjetil.
(2015)
Dynamic Interactions between Asynchronous Grids Interconnected through an MTDC System.
CIGRE International Symposium - Across borders - HVDC systems and markets integration - Lund 2015.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Satertro, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjolmesli, Svein.
(2015)
Integrated modelling platform for dynamic performance assessment of floating wind turbines.
Energy Procedia.
volum 80.
Academic article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Investigation of Dynamic Behaviour of AC/DC Power Systems.
Proceedings : 14th Wind Integration Workshop 14th Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Secondary control in multi-terminal VSC-HVDC transmission system.
Power & Energy Society General Meeting, 2015 IEEE.
Academic chapter/article
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2015)
A scheme for optimal coordination of reactive-power reserves in a large power system.
PowerTech Eindhoven 2015.
Academic chapter/article
-
Leelaruji, Rujiroj;
Vanfretti, L;
Uhlen, Kjetil;
Gjerde, Jan Ove.
(2015)
Computing sensitivities from synchrophasor data for voltage stability monitoring and visualization.
International Transactions on Electrical Energy Systems.
volum 25 (6).
Academic article
-
Preda, Traian Nicolae;
Uhlen, Kjetil.
(2015)
A test distribution grid for study of slow coherency concept.
PowerTech Eindhoven 2015.
Academic chapter/article
-
Støylen, Hanne;
Uhlen, Kjetil;
Årdal, Atle Rygg.
(2015)
Laboratory demonstration of inertial response from VSC-HVDC connected wind farms.
11th IET International Conference on AC and DC Power Transmission 2015 (IET ACDC 2015).
Academic chapter/article
-
Tai, Vin Cent;
Uhlen, Kjetil.
(2015)
Resampling of data for offshore grid design based on kernel density estimation and genetic algorithm.
Energy Procedia.
volum 80.
Academic article
-
Uhlen, Kjetil.
(2015)
Smart Transmission Grids Operation and Control (STRONgrid) Sustainable Energy Systems 2050.
2015. ISBN 978-82-7200-053-9.
Report
2014
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2014)
Analysis of Impacts of SVC on Voltage Collapse Mechanism and Maximum Loadability.
International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE), 2014.
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Løvlund, Stig.
(2014)
A Method for Real Time Voltage Stability Monitoring in Sub-transmission Networks.
18th Power system Computations Conference - PSCC 2014.
Academic chapter/article
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2014)
Microgrid: Prospects and challenges in Nepal.
2014 Power and Energy Systems Conference: Towards Sustainable Energy.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2014)
Scenario selection in composite reliability assessment of deregulated power systems.
International Journal of Electrical Power & Energy Systems.
volum 63 (Dec).
Academic article
-
Kile, Håkon;
Uhlen, Kjetil;
Warland, Leif;
Kjølle, Gerd Hovin.
(2014)
A Comparison of AC and DC Power Flow Models for Contingency and Reliability Analysis.
18th Power system Computations Conference - PSCC 2014.
Academic chapter/article
-
Marvik, Jorun Irene;
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2014)
Wind farm voltage dip measurements.
Wind Energy.
volum 17 (8).
Academic article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Hadjsaid, Nouredine.
(2014)
Dynamic Equivalents of Active Distribution Grids Based on Model Parameters Identification.
2014 IEEE PES General Meeting, conference and exposition.
Academic chapter/article
-
Støylen, Hanne;
Uhlen, Kjetil;
Årdal, Atle Rygg;
Sharifabadi, Kamran Torki.
(2014)
Laboratory demonstration of an offshore grid in the North Sea with DC droop control.
2014 Ninth International Conference and Exhibition on Ecological Vehicles and Renewable Energies - EVER 2013.
Academic chapter/article
-
Tai, Vin Cent;
Uhlen, Kjetil.
(2014)
Design and Optimisation of Offshore Grids in Baltic Sea for Scenario Year 2030.
Energy Procedia.
volum 53.
Academic article
2013
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Adaramola, Muyiwa S..
(2013)
Control Challenges and Possibilities for Offshore Wind Farms.
2013. ISBN 9788259436047. SINTEF Energi. Rapport (TR A7258).
Report
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2013)
Online voltage stability monitoring based on PMU measurements and system topology.
3rd International Conference on Electric Power and Energy Conversion Systems EPECS.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2013)
Power System Security in a Meshed North Sea HVDC Grid.
Proceedings of the IEEE.
volum 101 (4).
Academic article
-
He, Wei;
Uhlen, Kjetil;
Hadiya, Maheshkumar;
Shi, Gang;
del Rio, Emilio.
(2013)
Case Study of Integrating an Offshore Wind Farm with Offshore Oil and Gas Platforms and with an Onshore Electrical Grid.
Journal of Renewable Energy.
volum 2013.
Academic article
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
Scenario Selection by Unsupervised Learning in Reliability Analysis of Transmission Networks.
2013 IEEE Grenoble PowerTech.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
The Important Role of Feature Selection when Clustering Load and Generation Scenarios.
The 5th IEEE PES Asia-Pacific Power and Energy Engineering Conference, Hong-Kong, December 2013.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2013)
Clustering Distributed Generation Using the Instantaneous Euclidean Distance in Polar Coordinates.
2013 4th IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe, Lyngby, 6-9 Oct. 2013.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2013)
Códigos de rede atuais para integração da geração distribuída.
Eletricidade Moderna.
Academic article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik;
Toftevaag, Trond.
(2013)
Dynamic equivalents of active distribution power systems for investigation of transient stability.
CIRED 2013 Electricity Distribution Systems for a Sustainable Future.
Academic chapter/article
-
Toftevaag, Trond;
Preda, Traian Nicolae;
Uhlen, Kjetil.
(2013)
Impact of voltage phase angle changes on low-voltage ride-through performance of small scale hydro DG units.
CIRED 2013 Electricity Distribution Systems for a Sustainable Future.
Academic chapter/article
2012
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil.
(2012)
Coordinated Control of Multiple HVDC links using backstepping.
Proceedings of the IEEE Conference on Control Applications.
Academic article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2012)
Impact of DC Line Voltage Drops on Power Flow of MTDC Using Droop Control.
IEEE Transactions on Power Systems.
volum 27 (3).
Academic article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2012)
Precise control of power flow in multiterminal VSC-HVDCs using DC voltage droop control.
IEEE Power & Energy Society, General Meeting 2012.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2012)
Control, Dynamics and Operation of Multi-terminal VSC-HVDC Transmission Systems.
2012. ISBN 978-82-471-4036-9. Doktoravhandlinger ved NTNU (354).
PhD thesis
-
Hillberg, Karl Emil;
Trengereid, F.;
Breidablik, Ø.;
Uhlen, Kjetil;
Kjølle, Gerd Hovin;
Løvlund, S.;
Gjerde, J.O..
(2012)
System Integrity Protection Schemes - Increasing operational Security and System Capacity.
CIGRE Session 44, 26th to 31st August 2012 : set of papers.
Academic chapter/article
-
Kalcon, Giddani O.;
Adam, Grain P.;
Anaya-Lara, Olimpo;
Lo, Stephen;
Uhlen, Kjetil.
(2012)
Small-Signal Stability Analysis of Multi-Terminal VSC-Based DC Transmission Systems.
IEEE Transactions on Power Systems.
volum 27 (4).
Academic article
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Averanging Operating States with Infinite Mixtures in Reliability Analysis of Transmission Networks.
12th International Conference on Probabilistic Methods Applied to Power Systems.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Data reduction via clustering and averaging for contingency and reliability analysis.
International Journal of Electrical Power & Energy Systems.
volum 43 (1).
Academic article
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Supervised and Unsupervised Learning in Composite Reliability Evaluation.
IEEE Power & Energy Society, General Meeting 2012.
Academic chapter/article
-
Lindeberg, Eivind;
Svendsen, Harald Georg;
Uhlen, Kjetil.
(2012)
Smooth Transition Between Controllers for Floating Wind Turbines.
Energy Procedia.
volum 24.
Academic article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2012)
An overview of the present grid codes for integration of distributed generation.
CIRED 2012 Workshop: Integration of Renewables into the Distribution Grid, Lisbon, Portugal, 29-30 May 2012.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2012)
Instantaneous Harmonics Compensation using Shunt Active Filters in a Norwegian Distribution Power System with Large Amount of Distributed Generation.
PEDG 2012: 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik;
Toftevaag, Trond.
(2012)
External Grid Representation for Assessing Fault Ride Through Capabilities of Distributed Generation Units.
2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe).
Academic chapter/article
-
Storvann, V;
Johansson, Emil;
Uhlen, Kjetil.
(2012)
Indicating and Mitigating Voltage Collapse Comparing Voltage Stability Indicators.
IEEE PES Innovative Smart Grid Technologies Conference Europe.
Academic article
-
Tande, John Olav Giæver;
Korpås, Magnus;
Uhlen, Kjetil.
(2012)
Planning and Operation of Large Offshore Wind Farms in Areas with Limited Power Transfer Capacity.
Wind Engineering : The International Journal of Wind Power.
volum 36 (1).
Academic article
-
Uhlen, Kjetil.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
2012. ISBN 978-82-594-3516-3. SINTEF Energi. Rapport (TR A7191).
Report
-
Uhlen, Kjetil;
Cirio, Diego.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
2012. ISBN 978-82-594-3516-3.
Report
-
Uhlen, Kjetil;
Vanfretti, L;
de Oliveira, M;
Leirbukt, Albert;
Aarstand, Vemund Halmo;
Gjerde, Jan.
(2012)
Wide-Area Power Oscillation Damper Implementation and Testing in the Norwegian Transmission Network.
IEEE Power & Energy Society General Meeting.
Academic article
2011
-
Baker, John;
Brunner, Helfried;
Sinclair, John;
Uhlen, Kjetil;
Cirio, Diego.
(2011)
ENARD: Results from the First 5 year Term of International Collaboration in electricity networks.
CIRED Conference Proceedings.
Academic article
-
Endegnanew, Atsede Gualu;
Sætertrø, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjølmesli, Svein.
(2011)
Performance assessment of floating wind turbines during grid faults.
European Offshore Wind Conference & Exhibition (EOW 2011).
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Torres Olguin, Raymundo E.;
Vrana, Til Kristian;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2011)
Main Grid Frequency Support Strategy for VSC-HVDC Connected Wind Farms with Variable Speed Wind Turbines.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2011)
Power Flow Analysis of Multi-terminal HVDC Networks.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Tande, John Olav Giæver;
Anaya-Lara, Olimpo.
(2011)
Connection Scheme for North Sea Offshore Wind Integration to UK and Norway: Power Balancing and Transient Stability Analysis.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Johansson, Emil;
Uhlen, Kjetil;
Kjølle, Gerd;
Toftevaag, Trond.
(2011)
RELIABILITY EVALUATION OF WIDE AREA MONITORING APPLICATIONS AND EXTREME CONTINGENCIES.
Proceeding - 17th Power Systems Computations Conference PSCC 2011.
Academic chapter/article
-
Svendsen, Harald Georg;
Hadiya, Maheshkumar;
Øyslebø, Eirik Veirød;
Uhlen, Kjetil.
(2011)
Integration of offshore wind farm with multiple oil and gas platforms.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, D;
Jensen, KB;
Duthaler, C;
Vormedal, L;
Larsson, S;
Fodstad, L. A..
(2011)
Quais os desafios e como serao os sistemas de transmissao do futuro?.
Eletricidade Moderna.
volum 39 (444).
Academic article
2010
-
Chaudhuri, N.R.;
Domahidi, A.;
Majumder, R.;
Chaudhuri, B.;
Korba, P.;
Ray, S.;
Uhlen, Kjetil.
(2010)
Wide-area power oscillation damping control in Nordic equivalent system.
IET Generation, Transmission & Distribution.
volum 4 (10).
Academic article
-
Chaudhuri, Nilanjan Ray;
Domahidi, Alexander;
Chaudhuri, Balarko;
Majumder, Rajat;
Korba, Petr;
Ray, Swakshar;
Uhlen, Kjetil.
(2010)
Power oscillation damping control using wide-area signals: A case study on Nordic equivalent system.
Transmission and Distribution Conference and Exposition IEEE PES. 2010. (T&D 2010).
Academic chapter/article
-
Haileselassie, Temesgen M.;
Uhlen, Kjetil.
(2010)
Primary Frequency Control of Remote Grids Connected by Multi-terminal HVDC.
IEEE Power Engineering Society General Meeting.
Academic article
-
He, Wei;
Jacobsen, Gunnar;
Anderson, Tiit;
Olsen, Freydar;
Hanson, Tor;
Korpås, Magnus;
Toftevaag, Trond;
Eek, Jarle;
Uhlen, Kjetil;
Johansson, Emil.
(2010)
The Potential of Integrating Wind Power with Offshore Oil and Gas Platforms.
Wind Engineering : The International Journal of Wind Power.
volum 34 (2).
Academic article
-
Johansson, Emil;
Uhlen, Kjetil;
Nybø, Agnes;
Kjølle, Gerd;
Gjerde, Oddbjørn.
(2010)
Extraordinary events: Understanding sequence, causes, and remedies.
Reliability, risk and safety : back to the future.
Academic chapter/article
-
Korba, Petr;
Uhlen, Kjetil.
(2010)
Wide-area monitoring of electromechanical oscillations in the Nordic power system: practical experience.
IET Generation, Transmission & Distribution.
volum 4 (10).
Academic article
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, K.;
Jensen, KB;
Duthaler, C;
Vormedal, L;
Larsson, S;
Fodstad, Lars August.
(2010)
IEA Enard: - International collaboration on developments in transmission systems R&D.
CIGRE 2010, Session 43.
Academic chapter/article
2009
-
Korpås, Magnus;
Warland, Leif;
Tande, John Olav Giæver;
Uhlen, Kjetil Obstfelder.
(2009)
Impact of increased wind integration on power flows and congestion costs in the European transmission network.
European Wind Energy Conference & Exhibtion 2009 : EWEC 2009.
Academic chapter/article
-
Tande, John Olav Giæver;
Korpås, Magnus;
Warland, Leif;
Uhlen, Kjetil;
van Hulle, Frans.
(2009)
Impact of TradeWind offshore wind power capacity scenarios on power flows in the European HV network.
Wind power : alternative energy source. 7th International Workshop on Large Scale Integration of Wind Power and on Transmission Networks for Offshore Wind Farms.
Academic chapter/article
-
Warland, Leif;
Korpås, Magnus;
Tande, John Olav Giæver;
Uhlen, Kjetil Obstfelder.
(2009)
Cross-border transmission upgrade with increasing wind power penetration.
European Wind Energy Conference & Exhibtion 2009 : EWEC 2009.
Academic chapter/article
2008
-
Suul, Jon Are Wold;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2008)
Wind Power Integration in Isolated Grids enabled by Variable Speed Pumped Storage Hydropower Plant.
2008 IEEE International Conference on Sustainable Energy Technologies - ICSET 2008.
Academic chapter/article
-
Sørensen, Poul;
Norheim, Ian;
Meibom, Peter;
Uhlen, Kjetil.
(2008)
Simulations of wind power integration with complementary power system planning tools.
Electric power systems research.
volum 78 (6).
Academic article
2006
-
Eek, Jarle;
Di Marzio, Giuseppe;
Lund, Torstein;
Fosso, Olav B;
Gjengedal, Terje;
Uhlen, Kjetil.
(2006)
Reactive Power Compensation and Voltage Control in Regional Networks with High Wind Power Penetration and Thermal Capacity Constraints.
2006.
Report
-
Eek, Jarle;
Gjengedal, Terje;
Uhlen, Kjetil.
(2006)
Influence of High Wind Power Penetration on the Nordic Power Grid Primary Control Response.
2006. Cigre.
Report
-
Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2006)
Wind Power Contribution to Primery Frequency Response in the Nordel Power System.
2006.
Report
-
Doorman, Gerard L.;
Uhlen, Kjetil;
Kjølle, Gerd Hovin;
Huse, Einar Ståle.
(2006)
Vulnerability analysis of the Nordic power system.
IEEE Transactions on Power Systems.
volum 21 (1).
Academic article
2005
-
Di Marzio, Giuseppe;
Eek, Jarle;
Uhlen, Kjetil;
Fosso, Olav B.
(2005)
A proposed model for stability assessment of electrical power systems with large scale wind power integration.
The 4th World Wind Energy Conference & Renewable Energy Exhibition 2005.
Academic chapter/article
-
Di Marzio, Giuseppe;
Fosso, Olav B;
Uhlen, Kjetil;
Palsson, Magni T..
(2005)
Large-Scale Wind Power Integration - Voltage Stability Limits and Modal Analysis.
15th Power Systems Computation Conference 2005 - PSCC 2005 Liege.
Academic chapter/article
-
Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Transient stability studies comparing synchronous and doubly fed induction generators.
CIGRE Symposium Athens 2005 Power systems with dispersed generation.
Academic chapter/article
-
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Options for large scale integration of wind power.
2005 IEEE Russia Power Tech.
Academic chapter/article
2004
-
Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System.
2004. ISBN 82-594-2652-8. Teknisk rapport / SINTEF energiforskning (TR A5962).
Report
-
Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System - Executive Summary.
2004. ISBN 82-594-2658-7. Teknisk rapport / SINTEF energiforskning (TR A5968).
Report
-
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2004)
Cost analysis case study of grid integration of larger wind farms.
Wind Engineering : The International Journal of Wind Power.
volum 28 (3).
Academic article
2003
-
Pálsson, Magni Tor;
Toftevaag, Trond;
Uhlen, Kjetil;
Tande, John Olav Giæver.
(2003)
Control concepts to enable increased wind power penetration.
2003 IEEE Power Engineering Society General Meeting.
Academic chapter/article
2002
-
Pálsson, Magni Tor;
Toftevaag, Trond;
Uhlen, Kjetil;
Tande, John Olav Giæver.
(2002)
Large-scale wind power integration and voltage stability limits in regional networks.
2002 IEEE Power Engineering Society Summer Meeting.
Academic chapter/article
2001
-
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2001)
Wind turbines in weak grids-constraints and solutions.
16th International Conference and Exhibition on Electricity Distribution, 2001.
Academic chapter/article
1998
-
Uhlen, Kjetil;
Petterteig, Astrid;
Kjølle, Gerd Hovin;
Holen, Arne Torstein;
Løvås, Gunnar Gundersby;
Meisingset, M..
(1998)
On-line security assessment and control - probabilistic versus deterministic operational criteria.
Safety and Reliability; Proceedings of ESREL '98.
Academic chapter/article
Scientific articles
-
Monshizadeh, Shohreh;
Uhlen, Kjetil;
Hegglid, Gunne John.
(2021)
Transmission Loss Minimization Using Artificial Intelligent Algorithm for Nordic44 Network Model based on Hourly Load Variation.
IFAC-PapersOnLine.
volum 53 (2).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil Obstfelder.
(2021)
Nonlinear model predictive control of variable speed hydropower for provision of fast frequency reserves.
Electric power systems research.
volum 194.
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil Obstfelder.
(2021)
Variable Speed Hydropower for Provision of Fast Frequency Reserves in the Nordic Grid.
IEEE Transactions on Power Systems.
volum 36 (6).
Academic article
-
Jakobsen, Sigurd Hofsmo;
Bombois, Xavier;
Uhlen, Kjetil.
(2020)
Non-intrusive identification of hydro power plants’ dynamics using control system measurements.
International Journal of Electrical Power & Energy Systems.
volum 122:106180.
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Optimized Control of Variable Speed Hydropower for Provision of Fast Frequency Reserves.
Electric power systems research.
volum 189 (106668).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Stability properties of nonlinear model predictive control of variable speed hydropower.
IET Control Theory & Applications.
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variabel hastighet i kraftverk.
Energiteknikk : fagbladet for energibransjen.
volum 133 (2).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variable Speed Hydropower Conversion and Control.
IEEE transactions on energy conversion.
volum 35 (1).
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variable speed hydropower plant with virtual inertia control for provision of fast frequency reserves.
International Journal of Power and Energy Systems.
volum 41.
Academic article
-
Berglund, Frida;
Zaferanlouei, Salman;
Korpås, Magnus;
Uhlen, Kjetil.
(2019)
Optimal Operation of Battery Storage for a Subscribed Capacity-Based Power Tariff Prosumer—A Norwegian Case Study.
Energies.
volum 12 (23).
Academic article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2019)
Testing of a hydropower plant’s stability and performance using PMU and control system data in closed loop.
IET Generation, Transmission & Distribution.
volum 13 (23).
Academic article
-
Na, Shweta;
Kishor, Nand;
Uhlen, Kjetil;
Mohanty, Soumya R.
(2019)
Detecting instant of multiple faults on the transmission line and its types using time-frequency analysis.
IET Generation, Transmission & Distribution.
volum 13 (22).
Academic article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2018)
Development of a test system for identification of turbine dynamics using the dc power flow.
IFAC-PapersOnLine.
volum 51 (2).
Academic article
-
Parreiras, TJMA;
Gomes, S;
Taranto, Glauco Nery;
Uhlen, Kjetil.
(2018)
Closest security boundary for improving oscillation damping through generation redispatch using eigenvalue sensitivities.
Electric power systems research.
volum 160.
Academic article
-
Tuttelberg, Kaur;
Kilter, Jako;
Wilson, Douglas;
Uhlen, Kjetil.
(2018)
Estimation of Power System.
IEEE Transactions on Power Systems.
Academic article
-
Negi, Sanjay Singh;
Kishor, Nand;
Kumar, Avinash;
Uhlen, Kjetil.
(2017)
Signal processing for time-frequency representation of synchro-phasor data.
IET Generation, Transmission & Distribution.
volum 11 (16).
Academic article
-
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil;
Negi, Richa.
(2017)
Event Detection and its Signal Characterization in PMU Data Stream.
IEEE Transactions on Industrial Informatics.
volum 13 (6).
Academic article
-
Schweta, NN;
Kishor, Nand;
Uhlen, Kjetil;
Soumya, Mohanty.
(2017)
Identification of coherency and critical generators set in real-time signal.
IET Generation, Transmission & Distribution.
volum 11 (18).
Academic article
-
Zangmo, Gayleg;
Om, Khandu;
Uhlen, Kjetil.
(2017)
Impact of hydro-turbine and governor parameters on stability of grid connected power system.
International Journal on Electrical Engineering and Informatics.
volum 9 (2).
Academic article
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Jansson, Erik Alexander.
(2016)
Estimation of hydro turbine-governor system's transfer function from PMU measurements.
IEEE Power & Energy Society General Meeting.
volum 2016-November.
Academic article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Coordinated Converter Control Strategy in Hybrid AC/DC Power Systems for System Frequency Support.
Energy Procedia.
volum 94.
Academic article
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil.
(2016)
Model Predictive Load-Frequency Control.
IEEE Transactions on Power Systems.
volum 31 (1).
Academic article
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil;
Fabozzi, Davide;
Thornhill, Nina F..
(2016)
Model predictive load–frequency control taking into account imbalance uncertainty.
Control Engineering Practice.
volum 53.
Academic article
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, T;
Matevosjana, J;
Nobel, F. A.;
Sørensen, P..
(2016)
Analytical techniques and tools for power balancing assessments.
Cigre Science & Engineering.
volum April (285).
Academic article
-
Endegnanew, Atsede Gualu;
Satertro, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjolmesli, Svein.
(2015)
Integrated modelling platform for dynamic performance assessment of floating wind turbines.
Energy Procedia.
volum 80.
Academic article
-
Leelaruji, Rujiroj;
Vanfretti, L;
Uhlen, Kjetil;
Gjerde, Jan Ove.
(2015)
Computing sensitivities from synchrophasor data for voltage stability monitoring and visualization.
International Transactions on Electrical Energy Systems.
volum 25 (6).
Academic article
-
Tai, Vin Cent;
Uhlen, Kjetil.
(2015)
Resampling of data for offshore grid design based on kernel density estimation and genetic algorithm.
Energy Procedia.
volum 80.
Academic article
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2014)
Scenario selection in composite reliability assessment of deregulated power systems.
International Journal of Electrical Power & Energy Systems.
volum 63 (Dec).
Academic article
-
Marvik, Jorun Irene;
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2014)
Wind farm voltage dip measurements.
Wind Energy.
volum 17 (8).
Academic article
-
Tai, Vin Cent;
Uhlen, Kjetil.
(2014)
Design and Optimisation of Offshore Grids in Baltic Sea for Scenario Year 2030.
Energy Procedia.
volum 53.
Academic article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2013)
Power System Security in a Meshed North Sea HVDC Grid.
Proceedings of the IEEE.
volum 101 (4).
Academic article
-
He, Wei;
Uhlen, Kjetil;
Hadiya, Maheshkumar;
Shi, Gang;
del Rio, Emilio.
(2013)
Case Study of Integrating an Offshore Wind Farm with Offshore Oil and Gas Platforms and with an Onshore Electrical Grid.
Journal of Renewable Energy.
volum 2013.
Academic article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2013)
Códigos de rede atuais para integração da geração distribuída.
Eletricidade Moderna.
Academic article
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil.
(2012)
Coordinated Control of Multiple HVDC links using backstepping.
Proceedings of the IEEE Conference on Control Applications.
Academic article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2012)
Impact of DC Line Voltage Drops on Power Flow of MTDC Using Droop Control.
IEEE Transactions on Power Systems.
volum 27 (3).
Academic article
-
Kalcon, Giddani O.;
Adam, Grain P.;
Anaya-Lara, Olimpo;
Lo, Stephen;
Uhlen, Kjetil.
(2012)
Small-Signal Stability Analysis of Multi-Terminal VSC-Based DC Transmission Systems.
IEEE Transactions on Power Systems.
volum 27 (4).
Academic article
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Data reduction via clustering and averaging for contingency and reliability analysis.
International Journal of Electrical Power & Energy Systems.
volum 43 (1).
Academic article
-
Lindeberg, Eivind;
Svendsen, Harald Georg;
Uhlen, Kjetil.
(2012)
Smooth Transition Between Controllers for Floating Wind Turbines.
Energy Procedia.
volum 24.
Academic article
-
Storvann, V;
Johansson, Emil;
Uhlen, Kjetil.
(2012)
Indicating and Mitigating Voltage Collapse Comparing Voltage Stability Indicators.
IEEE PES Innovative Smart Grid Technologies Conference Europe.
Academic article
-
Tande, John Olav Giæver;
Korpås, Magnus;
Uhlen, Kjetil.
(2012)
Planning and Operation of Large Offshore Wind Farms in Areas with Limited Power Transfer Capacity.
Wind Engineering : The International Journal of Wind Power.
volum 36 (1).
Academic article
-
Uhlen, Kjetil;
Vanfretti, L;
de Oliveira, M;
Leirbukt, Albert;
Aarstand, Vemund Halmo;
Gjerde, Jan.
(2012)
Wide-Area Power Oscillation Damper Implementation and Testing in the Norwegian Transmission Network.
IEEE Power & Energy Society General Meeting.
Academic article
-
Baker, John;
Brunner, Helfried;
Sinclair, John;
Uhlen, Kjetil;
Cirio, Diego.
(2011)
ENARD: Results from the First 5 year Term of International Collaboration in electricity networks.
CIRED Conference Proceedings.
Academic article
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, D;
Jensen, KB;
Duthaler, C;
Vormedal, L;
Larsson, S;
Fodstad, L. A..
(2011)
Quais os desafios e como serao os sistemas de transmissao do futuro?.
Eletricidade Moderna.
volum 39 (444).
Academic article
-
Chaudhuri, N.R.;
Domahidi, A.;
Majumder, R.;
Chaudhuri, B.;
Korba, P.;
Ray, S.;
Uhlen, Kjetil.
(2010)
Wide-area power oscillation damping control in Nordic equivalent system.
IET Generation, Transmission & Distribution.
volum 4 (10).
Academic article
-
Haileselassie, Temesgen M.;
Uhlen, Kjetil.
(2010)
Primary Frequency Control of Remote Grids Connected by Multi-terminal HVDC.
IEEE Power Engineering Society General Meeting.
Academic article
-
He, Wei;
Jacobsen, Gunnar;
Anderson, Tiit;
Olsen, Freydar;
Hanson, Tor;
Korpås, Magnus;
Toftevaag, Trond;
Eek, Jarle;
Uhlen, Kjetil;
Johansson, Emil.
(2010)
The Potential of Integrating Wind Power with Offshore Oil and Gas Platforms.
Wind Engineering : The International Journal of Wind Power.
volum 34 (2).
Academic article
-
Korba, Petr;
Uhlen, Kjetil.
(2010)
Wide-area monitoring of electromechanical oscillations in the Nordic power system: practical experience.
IET Generation, Transmission & Distribution.
volum 4 (10).
Academic article
-
Sørensen, Poul;
Norheim, Ian;
Meibom, Peter;
Uhlen, Kjetil.
(2008)
Simulations of wind power integration with complementary power system planning tools.
Electric power systems research.
volum 78 (6).
Academic article
-
Doorman, Gerard L.;
Uhlen, Kjetil;
Kjølle, Gerd Hovin;
Huse, Einar Ståle.
(2006)
Vulnerability analysis of the Nordic power system.
IEEE Transactions on Power Systems.
volum 21 (1).
Academic article
-
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2004)
Cost analysis case study of grid integration of larger wind farms.
Wind Engineering : The International Journal of Wind Power.
volum 28 (3).
Academic article
Books
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Merz, Karl Otto.
(2018)
Offshore Wind energy technology.
John Wiley & Sons. 2018. ISBN 978-1-119-09779-2.
Scientific anthology
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2016)
Two-tier approach for the design of multiple power oscillation damping controllers.
IEEE conference proceedings. 2016. ISBN 978-1-4673-8463-6.
Scientific anthology
Part of book/report
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil;
Sanchez Acevedo, Santiago;
D'Arco, Salvatore.
(2021)
Experimental Characterization of Methods for Connecting Real-Time Simulations and Synchrophasors.
2021 IEEE Madrid PowerTech.
Academic chapter/article
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Jóhannsson, Hjörtur.
(2021)
An Open Source Power System Simulator in Python for Efficient Prototyping of WAMPAC Applications.
2021 IEEE Madrid PowerTech.
Academic chapter/article
-
Haugdal, Hallvar;
Uhlen, Kjetil;
Müller, Daniel;
Jóhannsson, Hjörtur.
(2020)
Estimation of Oscillatory Mode Activity from PMU Measurements.
2020 IEEE PES Innovative Smart Grid Technologies Europe - ISGT-Europe.
Academic chapter/article
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Mode Shape Estimation using Complex Principal Component Analysis and k-Means Clustering.
IEEE SGSMA 2019 - The First IEEE International Coonference on Smart Grid Synchronized Measurements and Analytics.
Academic chapter/article
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Power Oscillation Monitoring using Statistical Learning Methods.
2019 IEEE Milan PowerTech.
Academic chapter/article
-
Solvang, Espen Hafstad;
Sperstad, Iver Bakken;
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2019)
Dynamic simulation of simultaneous HVDC contingencies relevant for vulnerability assessment of the nordic power system.
2019 IEEE Milan PowerTech.
Academic chapter/article
-
Uhlen, Kjetil;
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta.
(2019)
Operation and Control of hybrid AC/DC transmission grids.
Proceeding 45th Annual Conference of the IEEE Industrial Electronics Society - IECON 2019.
Academic chapter/article
-
Andresen, Christian Andre;
Torsæter, Bendik Nybakk;
Haugdal, Hallvar;
Uhlen, Kjetil.
(2018)
Fault Detection and Prediction in Smart Grids.
2018 IEEE 9th International Workshop on Applied Measurements for Power Systems - AMPS.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Kalemba, Lester;
Uhlen, Kjetil.
(2018)
Using Decentralized Control Techniques for Interaction Analysis in Hybrid AC/DC Grids.
2018 IEEE Power & Energy Society General Meeting - PESGM.
Academic chapter/article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil;
Bombois, Xavier.
(2018)
Identification of Hydro turbine governors using PMU data.
2018 IEEE International Conference on Probabilistic Methods Applied to Power Systems - PMAPS.
Academic chapter/article
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2018)
Stability Assessment of Power Systems Based on a Robust Sum-of-Squares Optimization Approach.
2018 Power Systems Computation Conference PSCC.
Academic chapter/article
-
Karlsen, David;
Uhlen, Kjetil;
Vormedal, L.
(2018)
Introducing PMU-based Applications in the Control Room Setting.
CIGRE, Session Proceedings 2018.
Academic chapter/article
-
Negi, Sanjay S.;
Kishor, Nand;
Negi, Richa;
Uhlen, Kjetil.
(2018)
Event signal characterization for disturbance interpretation in power grid.
2018 First International Colloquium on Smart Grid Metrology (SmaGriMet).
Academic chapter/article
-
Sanchez Acevedo, Santiago;
Duong, Dinh Thuc;
Taffese, Abel Assegid;
Uhlen, Kjetil;
Tedeschi, Elisabetta.
(2018)
Performance evaluation of the empirical method for online detection of power oscillations: a multiterminal HVDC application.
44th Annual Conference of the IEEE Industrial Electronics Society.
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
A Topology-based Scheme for Adaptive Underfrequency Load Shedding.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Bergna-Diaz, Gilbert;
Uhlen, Kjetil.
(2017)
Avoiding AC/DC grid interaction in MMC based MTDC Systems.
2017 Twelfth International Conference on Ecological Vehicles and Renewable Energies (EVER).
Academic chapter/article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2017)
Vector fitting for estimation of turbine governing system parameters.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Jha, Shailendra Kumar;
Støa, Petter;
Uhlen, Kjetil.
(2017)
Green and hybrid microgrid for rural electrification.
2016 IEEE Region 10 Humanitarian Technology Conference - R10-HTC.
Academic chapter/article
-
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil;
Negi, Richa.
(2017)
Post-processing algorithmfor damped and step-change events detection in PMU signals.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Polster, Stefan;
Renner, Herwig;
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
Voltage Stability Monitoring using a Modified Thevenin Impedance.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Shweta, NN;
Kishor, Nand;
Uhlen, Kjetil;
Mohanty, S..
(2017)
Time-varying coherency study using TFC.
12th IEEE Power and Energy Society PowerTech Conference PowerTech Manchester 2017.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil;
Bergna Diaz, Gilbert;
Beerten, Jef.
(2016)
Small-signal modelling of an MMC-based HVDC link interfacing large AC systems.
2016 IEEE 17th Workshop on Control and Modeling for Power Electronics, COMPEL 2016 : Proceedings.
Academic chapter/article
-
Dharmawardena, Hasala;
Uhlen, Kjetil;
Gjerde, Sverre Skalleberg.
(2016)
Modelling wind farm with synthetic inertia for power system dynamic studies.
2016 IEEE International Energy Conference (ENERGYCON).
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Anaya-Lara, Olimpo.
(2016)
Transient stability analysis in multi-terminal VSC-HVDC grids.
19th Power Systems Computation Conference PSCC 2016.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Global analysis of frequency stability and inertia in AC systems interconnected through an HVDC.
2016 IEEE International Energy Conference - ENERGYCON.
Academic chapter/article
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2016)
Socio-economic impact of a rural microgrid.
2016 4th International Conference on the Developments in Renewable Energy Technology :ICDRET 2016.
Academic chapter/article
-
Kumar, Avinash;
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil.
(2016)
Signal processing and classification of synchro-phasor data.
Electrotechnical Conference (MELECON), 2016 18th Mediterranean.
Academic chapter/article
-
Dharmawardena, Hasala Indika;
Uhlen, Kjetil.
(2015)
Modeling variable speed Wind turbine for power system dynamic studies.
2015 IEEE Students Conference on Engineering and Systems (SCES).
Academic chapter/article
-
Duong, Dinh Thuc;
Kalemba, Lester;
Uhlen, Kjetil;
Løvlund, Stig.
(2015)
A scheme for coordinated secondary voltage control for systems with multiple VAr reserves.
2015 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015.
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Taranto, Glauco Nery;
Løvlund, Stig.
(2015)
A Comparative Case Study of Online Voltage Instability Monitoring.
PowerTech Eindhoven 2015.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Beerten, Jef;
Uhlen, Kjetil.
(2015)
Dynamic Interactions between Asynchronous Grids Interconnected through an MTDC System.
CIGRE International Symposium - Across borders - HVDC systems and markets integration - Lund 2015.
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Investigation of Dynamic Behaviour of AC/DC Power Systems.
Proceedings : 14th Wind Integration Workshop 14th Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Secondary control in multi-terminal VSC-HVDC transmission system.
Power & Energy Society General Meeting, 2015 IEEE.
Academic chapter/article
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2015)
A scheme for optimal coordination of reactive-power reserves in a large power system.
PowerTech Eindhoven 2015.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil.
(2015)
A test distribution grid for study of slow coherency concept.
PowerTech Eindhoven 2015.
Academic chapter/article
-
Støylen, Hanne;
Uhlen, Kjetil;
Årdal, Atle Rygg.
(2015)
Laboratory demonstration of inertial response from VSC-HVDC connected wind farms.
11th IET International Conference on AC and DC Power Transmission 2015 (IET ACDC 2015).
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2014)
Analysis of Impacts of SVC on Voltage Collapse Mechanism and Maximum Loadability.
International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE), 2014.
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Løvlund, Stig.
(2014)
A Method for Real Time Voltage Stability Monitoring in Sub-transmission Networks.
18th Power system Computations Conference - PSCC 2014.
Academic chapter/article
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2014)
Microgrid: Prospects and challenges in Nepal.
2014 Power and Energy Systems Conference: Towards Sustainable Energy.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil;
Warland, Leif;
Kjølle, Gerd Hovin.
(2014)
A Comparison of AC and DC Power Flow Models for Contingency and Reliability Analysis.
18th Power system Computations Conference - PSCC 2014.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Hadjsaid, Nouredine.
(2014)
Dynamic Equivalents of Active Distribution Grids Based on Model Parameters Identification.
2014 IEEE PES General Meeting, conference and exposition.
Academic chapter/article
-
Støylen, Hanne;
Uhlen, Kjetil;
Årdal, Atle Rygg;
Sharifabadi, Kamran Torki.
(2014)
Laboratory demonstration of an offshore grid in the North Sea with DC droop control.
2014 Ninth International Conference and Exhibition on Ecological Vehicles and Renewable Energies - EVER 2013.
Academic chapter/article
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2013)
Online voltage stability monitoring based on PMU measurements and system topology.
3rd International Conference on Electric Power and Energy Conversion Systems EPECS.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
Scenario Selection by Unsupervised Learning in Reliability Analysis of Transmission Networks.
2013 IEEE Grenoble PowerTech.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
The Important Role of Feature Selection when Clustering Load and Generation Scenarios.
The 5th IEEE PES Asia-Pacific Power and Energy Engineering Conference, Hong-Kong, December 2013.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2013)
Clustering Distributed Generation Using the Instantaneous Euclidean Distance in Polar Coordinates.
2013 4th IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe, Lyngby, 6-9 Oct. 2013.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik;
Toftevaag, Trond.
(2013)
Dynamic equivalents of active distribution power systems for investigation of transient stability.
CIRED 2013 Electricity Distribution Systems for a Sustainable Future.
Academic chapter/article
-
Toftevaag, Trond;
Preda, Traian Nicolae;
Uhlen, Kjetil.
(2013)
Impact of voltage phase angle changes on low-voltage ride-through performance of small scale hydro DG units.
CIRED 2013 Electricity Distribution Systems for a Sustainable Future.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2012)
Precise control of power flow in multiterminal VSC-HVDCs using DC voltage droop control.
IEEE Power & Energy Society, General Meeting 2012.
Academic chapter/article
-
Hillberg, Karl Emil;
Trengereid, F.;
Breidablik, Ø.;
Uhlen, Kjetil;
Kjølle, Gerd Hovin;
Løvlund, S.;
Gjerde, J.O..
(2012)
System Integrity Protection Schemes - Increasing operational Security and System Capacity.
CIGRE Session 44, 26th to 31st August 2012 : set of papers.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Averanging Operating States with Infinite Mixtures in Reliability Analysis of Transmission Networks.
12th International Conference on Probabilistic Methods Applied to Power Systems.
Academic chapter/article
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Supervised and Unsupervised Learning in Composite Reliability Evaluation.
IEEE Power & Energy Society, General Meeting 2012.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2012)
An overview of the present grid codes for integration of distributed generation.
CIRED 2012 Workshop: Integration of Renewables into the Distribution Grid, Lisbon, Portugal, 29-30 May 2012.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2012)
Instantaneous Harmonics Compensation using Shunt Active Filters in a Norwegian Distribution Power System with Large Amount of Distributed Generation.
PEDG 2012: 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems.
Academic chapter/article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik;
Toftevaag, Trond.
(2012)
External Grid Representation for Assessing Fault Ride Through Capabilities of Distributed Generation Units.
2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe).
Academic chapter/article
-
Endegnanew, Atsede Gualu;
Sætertrø, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjølmesli, Svein.
(2011)
Performance assessment of floating wind turbines during grid faults.
European Offshore Wind Conference & Exhibition (EOW 2011).
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Torres Olguin, Raymundo E.;
Vrana, Til Kristian;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2011)
Main Grid Frequency Support Strategy for VSC-HVDC Connected Wind Farms with Variable Speed Wind Turbines.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2011)
Power Flow Analysis of Multi-terminal HVDC Networks.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Tande, John Olav Giæver;
Anaya-Lara, Olimpo.
(2011)
Connection Scheme for North Sea Offshore Wind Integration to UK and Norway: Power Balancing and Transient Stability Analysis.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Johansson, Emil;
Uhlen, Kjetil;
Kjølle, Gerd;
Toftevaag, Trond.
(2011)
RELIABILITY EVALUATION OF WIDE AREA MONITORING APPLICATIONS AND EXTREME CONTINGENCIES.
Proceeding - 17th Power Systems Computations Conference PSCC 2011.
Academic chapter/article
-
Svendsen, Harald Georg;
Hadiya, Maheshkumar;
Øyslebø, Eirik Veirød;
Uhlen, Kjetil.
(2011)
Integration of offshore wind farm with multiple oil and gas platforms.
PowerTech 2011 Proceedings.
Academic chapter/article
-
Chaudhuri, Nilanjan Ray;
Domahidi, Alexander;
Chaudhuri, Balarko;
Majumder, Rajat;
Korba, Petr;
Ray, Swakshar;
Uhlen, Kjetil.
(2010)
Power oscillation damping control using wide-area signals: A case study on Nordic equivalent system.
Transmission and Distribution Conference and Exposition IEEE PES. 2010. (T&D 2010).
Academic chapter/article
-
Johansson, Emil;
Uhlen, Kjetil;
Nybø, Agnes;
Kjølle, Gerd;
Gjerde, Oddbjørn.
(2010)
Extraordinary events: Understanding sequence, causes, and remedies.
Reliability, risk and safety : back to the future.
Academic chapter/article
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, K.;
Jensen, KB;
Duthaler, C;
Vormedal, L;
Larsson, S;
Fodstad, Lars August.
(2010)
IEA Enard: - International collaboration on developments in transmission systems R&D.
CIGRE 2010, Session 43.
Academic chapter/article
-
Korpås, Magnus;
Warland, Leif;
Tande, John Olav Giæver;
Uhlen, Kjetil Obstfelder.
(2009)
Impact of increased wind integration on power flows and congestion costs in the European transmission network.
European Wind Energy Conference & Exhibtion 2009 : EWEC 2009.
Academic chapter/article
-
Tande, John Olav Giæver;
Korpås, Magnus;
Warland, Leif;
Uhlen, Kjetil;
van Hulle, Frans.
(2009)
Impact of TradeWind offshore wind power capacity scenarios on power flows in the European HV network.
Wind power : alternative energy source. 7th International Workshop on Large Scale Integration of Wind Power and on Transmission Networks for Offshore Wind Farms.
Academic chapter/article
-
Warland, Leif;
Korpås, Magnus;
Tande, John Olav Giæver;
Uhlen, Kjetil Obstfelder.
(2009)
Cross-border transmission upgrade with increasing wind power penetration.
European Wind Energy Conference & Exhibtion 2009 : EWEC 2009.
Academic chapter/article
-
Suul, Jon Are Wold;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2008)
Wind Power Integration in Isolated Grids enabled by Variable Speed Pumped Storage Hydropower Plant.
2008 IEEE International Conference on Sustainable Energy Technologies - ICSET 2008.
Academic chapter/article
-
Di Marzio, Giuseppe;
Eek, Jarle;
Uhlen, Kjetil;
Fosso, Olav B.
(2005)
A proposed model for stability assessment of electrical power systems with large scale wind power integration.
The 4th World Wind Energy Conference & Renewable Energy Exhibition 2005.
Academic chapter/article
-
Di Marzio, Giuseppe;
Fosso, Olav B;
Uhlen, Kjetil;
Palsson, Magni T..
(2005)
Large-Scale Wind Power Integration - Voltage Stability Limits and Modal Analysis.
15th Power Systems Computation Conference 2005 - PSCC 2005 Liege.
Academic chapter/article
-
Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Transient stability studies comparing synchronous and doubly fed induction generators.
CIGRE Symposium Athens 2005 Power systems with dispersed generation.
Academic chapter/article
-
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Options for large scale integration of wind power.
2005 IEEE Russia Power Tech.
Academic chapter/article
-
Pálsson, Magni Tor;
Toftevaag, Trond;
Uhlen, Kjetil;
Tande, John Olav Giæver.
(2003)
Control concepts to enable increased wind power penetration.
2003 IEEE Power Engineering Society General Meeting.
Academic chapter/article
-
Pálsson, Magni Tor;
Toftevaag, Trond;
Uhlen, Kjetil;
Tande, John Olav Giæver.
(2002)
Large-scale wind power integration and voltage stability limits in regional networks.
2002 IEEE Power Engineering Society Summer Meeting.
Academic chapter/article
-
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2001)
Wind turbines in weak grids-constraints and solutions.
16th International Conference and Exhibition on Electricity Distribution, 2001.
Academic chapter/article
-
Uhlen, Kjetil;
Petterteig, Astrid;
Kjølle, Gerd Hovin;
Holen, Arne Torstein;
Løvås, Gunnar Gundersby;
Meisingset, M..
(1998)
On-line security assessment and control - probabilistic versus deterministic operational criteria.
Safety and Reliability; Proceedings of ESREL '98.
Academic chapter/article
Report
-
Hillberg, Emil;
Zegers, Antony;
Herndler, Barbara;
Wong, Steven;
Wong, Steven;
Pompee, Jean;
Bourmaud, Jean-Yves;
Lehnhoff, Sebastian;
Migliavacca, Gianluigi;
Uhlen, Kjetil;
Oleinikova, Irina;
Pihl, Hjalmar;
Norstrom, Markus;
Persson, Mattias;
Rossi, Joni;
Beccuti, Giovanni.
(2019)
Flexibility needs in the future power system.
2019.
Report
-
Uhlen, Kjetil.
(2019)
Resultatrapport NFR Project no 246784: Operation of the Smart Grid With Wide Area Information.
2019.
Report
-
Solvang, Espen Hafstad;
Uhlen, Kjetil.
(2018)
Dynamic Simulations of Simultaneous HVDC Contingencies in the Nordic Power System Considering System Integrity Protection Schemes.
2018.
Master thesis
-
Sanchez Acevedo, Santiago;
Tedeschi, Elisabetta;
Uhlen, Kjetil;
Djustrom, Jam;
Ehnberg, Jimmy;
Segundo, Rafael;
Korba, Petr;
Oleinikova, Irina;
Mutule, Anna;
Hillberg, Emil.
(2016)
CloudGrid – the development of a transnational smart grid lab cooperation.
2016.
Report
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, Takehiro;
Matevosjana, I;
Nobel, F. A.;
Sørensen, P..
(2016)
Analytical Techniques and tools for power balancing assessments.
CIGRE (International Council on Large Electric Systems). 2016. ISBN 978-2-85873-351-4. CIGRE Technical Brochure (648).
Report
-
Uhlen, Kjetil.
(2015)
Smart Transmission Grids Operation and Control (STRONgrid) Sustainable Energy Systems 2050.
2015. ISBN 978-82-7200-053-9.
Report
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Adaramola, Muyiwa S..
(2013)
Control Challenges and Possibilities for Offshore Wind Farms.
2013. ISBN 9788259436047. SINTEF Energi. Rapport (TR A7258).
Report
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2012)
Control, Dynamics and Operation of Multi-terminal VSC-HVDC Transmission Systems.
2012. ISBN 978-82-471-4036-9. Doktoravhandlinger ved NTNU (354).
PhD thesis
-
Uhlen, Kjetil.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
2012. ISBN 978-82-594-3516-3. SINTEF Energi. Rapport (TR A7191).
Report
-
Uhlen, Kjetil;
Cirio, Diego.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
2012. ISBN 978-82-594-3516-3.
Report
-
Eek, Jarle;
Di Marzio, Giuseppe;
Lund, Torstein;
Fosso, Olav B;
Gjengedal, Terje;
Uhlen, Kjetil.
(2006)
Reactive Power Compensation and Voltage Control in Regional Networks with High Wind Power Penetration and Thermal Capacity Constraints.
2006.
Report
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Eek, Jarle;
Gjengedal, Terje;
Uhlen, Kjetil.
(2006)
Influence of High Wind Power Penetration on the Nordic Power Grid Primary Control Response.
2006. Cigre.
Report
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Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2006)
Wind Power Contribution to Primery Frequency Response in the Nordel Power System.
2006.
Report
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Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System.
2004. ISBN 82-594-2652-8. Teknisk rapport / SINTEF energiforskning (TR A5962).
Report
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Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System - Executive Summary.
2004. ISBN 82-594-2658-7. Teknisk rapport / SINTEF energiforskning (TR A5968).
Report
Teaching
Courses
- TET4575 - Power System Operation and Analysis, Specialisation Course
- ET8500 - PhD Seminar in Electric Power Engineering
- ET8105 - Power System Operation and Control
- TET4205 - Power System Analysis 2
- TET4180 - Power System Dynamics and Control
- HAV6002 - Electric infrastructure and system integration
- ET6203 - Integration of converter interfaced generation and loads in the power grid
- ET6202 - Protection and monitoring in distribution networks
Media
2022
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Academic lectureUhlen, Kjetil Obstfelder. (2022) R&D in Hydropower to Support Renewable Deployment on the Transmission. IEEE PES General Meeting 2022 . IEEE PES; Denver Colorado. 2022-07-19 - 2022-07-19.
2020
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Academic lectureMonshizadeh, Shohreh; Uhlen, Kjetil; Hegglid, Gunne.J. (2020) Transmission Loss Minimization Using Artificial Intelligent Algorithm for Nordic44 Network Model based on Hourly Load Variation. 21st Virtual IFAC World Congress 2020 . IFAC world congress; Berlin. 2020-07-12 - 2020-07-17.
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Academic lectureUhlen, Kjetil. (2020) Challenges with Lower Inertia -Provision of Fast Frequency Control Reserves. International Conference on Role of Energy for Sustainable Social Development in ‘New Normal’ Era 28th -29th December 2020, Kathmandu, Nepal . Kathmandu University; Kathmandu. 2020-12-28.
2018
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Popular scientific lectureNegi, Sanjay S.; Kishor, Nand; Negi, Richa; Uhlen, Kjetil. (2018) Event signal characterization for disturbance interpretation in power grid. First International Colloquium on Smart Grid Metrology ; Split. 2018-04-24 - 2018-04-27.
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Academic lectureSanchez Acevedo, Santiago; Duong, Dinh Thuc; Taffese, Abel Assegid; Uhlen, Kjetil; Tedeschi, Elisabetta. (2018) Performance evaluation of the empirical method for online detection of power oscillations: a multiterminal HVDC application. IECON 2018 Annual conference of the IEEE industrial electronics society . IEEE; Washington. 2018-10-21 - 2018-10-23.
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Academic lectureUhlen, Kjetil. (2018) Smart and Flexible Energy Systems "Controlling the grid" - Challenges in power system operation. European Universities for a Clean Energy Future: Interdisciplinary Education, Training and Research . EUA-EPUE European Platform for Universities in Energy Resear; Université d'Lorraine, Nancy. 2018-03-21 - 2018-03-22.
2017
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Academic lectureHillberg, Emil; Lindahl, G.; Pinares, G.; Segundo Sevilla, F. R.; Korba, Petr; Uhlen, Kjetil; Sattinger, W.. (2017) Frequency stability assessment of decreased conventional production in the continental European power system. Cigre Symposium . Cigre; Dublin. 2017-05-30 - 2017-06-02.
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Academic lectureSegundo Sevilla, F. R.; Korba, Petr; Hillberg, Emil; Lindahl, G.; Uhlen, Kjetil. (2017) Robustness Assessment of the Continental European Power System Dynamic Model. Elkraft 2017 . Chalmers / Elforsk; Chalmers, Gøteborg. 2017-05-17 - 2017-05-18.
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Academic lectureSegundo Sevilla, F. R.; Korba, Petr; Uhlen, Kjetil; Hillberg, Emil; Lindahl, G.; Sattinger, W.. (2017) Evaluation of the ENTSO-E Initial Dynamic Model of Continental Europe Subject to Parameter Variations. IEEE ISGT, Washington DC, April 2017 . IEEE; Washington DC. 2017-04-23 - 2017-04-26.
2016
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Academic lectureEndegnanew, Atsede Gualu; Uhlen, Kjetil. (2016) Coordinated Tuning of Converter Controls in Hybrid AC/DC Grids for System Frequency Support. EERA DeepWind'2016 . SINTEF/NTNU; Trondheim. 2016-01-20 - 2016-01-22.
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LectureUhlen, Kjetil. (2016) Hvordan driver man et kraftsystem basert på 100% fornybar energi?. Lansering av publikasjonen "Tograder" . Norsk Klimastiftelse; Oslo. 2016-11-29 - 2016-11-30.
2015
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PosterTande, John Olav Giæver; Anaya-Lara, Olimpo; Uhlen, Kjetil. (2015) LFAC Transmission for Offshore Wind Applications: Fundamentals and Technology Status Review. EERA DeepWind'2015 . SINTEF / NTNU; Trondheim. 2015-02-04 - 2015-02-06.
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LectureToftevaag, Trond; Uhlen, Kjetil. (2015) Stabilitet i kraftsystemet Del 1 og Del 2. Kurs . Statnett/NTNU; Oslo. 2015-11-19 - 2015-11-26.
2014
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Academic lectureCutululis, N; Zeni, Lorenzo; Ziad El-Khatib, Walid; Holbøll, Joachim; Sørensen, Poul; Stamatiou, Georgios; Carlson, Ola; Tai, Vin Cent; Uhlen, Kjetil; Kiviluoma, Juha; Lund, Torsten. (2014) Challenges Towards the Deployment of Offshore Grids: the OffshoreDC Project. 13th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power (WIW 2014) ; Berlin. 2014-11-10 - 2014-11-11.
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Academic lectureErsdal, Anne Mai; Imsland, Lars Struen; Uhlen, Kjetil. (2014) Model Predictive Control for Frequency Control of the Nordic Power System. Research Presentation at Statnett . Statnett; Oslo. 2014-10-14.
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LecturePreda, Traian Nicolae; Uhlen, Kjetil; Hadjsaid, Nouredine. (2014) Dynamic equivalents of active distribution grids based on model parameters identification. IEEE PES General Meeting . IEEE PES; National Harbour, Washington DC. 2014-07-27 - 2014-07-31.
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LectureTai, Vin Cent; Uhlen, Kjetil. (2014) Design and Optimisation of Offshore Grids in Baltic Sea for Scenario Year 2030. EERA DeepWind'2014 Deep Sea Offshore Wind R&D Conference . NOWITECH; Radisson Blu Royal Garden Hotel, Kjøpmannsgata 73, Trondheim. 2014-01-22 - 2014-01-24.
2012
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Academic lectureErsdal, Anne Mai; Imsland, Lars Struen; Uhlen, Kjetil. (2012) Coordinated control of multiple hvdc links using backstepping. 2012 IEEE Multi-Conference on Systems and Control (MSC 2012) . IEEE; Dubrovnik. 2012-10-03 - 2012-10-05.
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Academic lectureKile, Håkon; Uhlen, Kjetil. (2012) Averaging Operating States with Infinite Mixtures in Reliability Analysis of Transmission. International Conference on Probabilistic Methods Applied to Power Systems ; 2012-06-10 - 2012-06-14.
2011
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PosterAnaya-Lara, Olimpo; Endegnanew, Atsede Gualu; Tande, John Olav Giæver; Svendsen, Harald Georg; Uhlen, Kjetil; Gjerde, Sverre Skalleberg; Sætertrø, Kristian; Gjølmesli, Svein. (2011) Performance assessment of floating wind turbines during grid faults. European Offshore Wind Conference . EWEA; Amsterdam. 2011-11-29 - 2011-12-01.
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Academic lectureHaileselassie, Temesgen Mulugeta; Torres Olguin, Raymundo E.; Vrana, Til Kristian; Uhlen, Kjetil; Undeland, Tore Marvin. (2011) Main Grid Frequency Support Strategy for VSC-HVDC Connected Wind Farms with Variable Speed Wind Turbines. Powertech . IEEE; 2011-06-19 - 2011-06-22.
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Academic lectureHaileselassie, Temesgen Mulugeta; Uhlen, Kjetil. (2011) CONTROL OF MULTITERMINAL HVDC AND ITS IMPACT ON MULTI-NATIONAL POWER MARKET. Cigre International Symposium - Recife, Barzil . CIGRÉ and the Brazilian National Committee; Recife, Pernambuco, Brazil. 2011-04-03 - 2011-04-06.
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Academic lectureJohansson, Emil; Uhlen, Kjetil; Kjølle, Gerd. (2011) Mitigating Extraordinary Events using Wide Area Monitoring Applications. CIGRE Symposium . CIGRE; Recife, Pernambuco. 2011-04-03 - 2011-04-06.
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PosterTande, John Olav Giæver; Adaramola, Muyiwa S.; Krogstad, Per-Åge; Anaya-Lara, Olimpo; Uhlen, Kjetil. (2011) Power output optimisation from an offshore wind farm. EWEA Offshore Conference and Exhibition ; Amsterdam. 2011-11-29 - 2011-12-02.
2010
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Academic lectureHaileselassie, Temesgen Mulugeta; Uhlen, Kjetil. (2010) Frequency sensitivity analysis of ac grids connected to MTDC grid. 9th IET International Conference on AC and DC Power Transmission, 2010. ACDC. . The Institution of Engineering and Technology - The IET; London. 2010-10-19 - 2010-10-21.
2009
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Academic lectureHaileselassie, Temesgen; Uhlen, Kjetil; Undeland, Tore Marvin. (2009) Control of Multiterminal HVDC Transmission for Offshore Wind Energy. Nordic Wind Power Conference . Nordic Wind Power Association; Bornholm. 2009-09-10 - 2009-09-11.
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Academic lectureHaileselassie, Temesgen; Undeland, Tore Marvin; Uhlen, Kjetil. (2009) Multiterminal HVDC for Offshore Windfarms – Control Strategy. EPE Wind Energy Chapter Seminar 2009 . European Power Electronics and Drives Association; Stockholm, Royal Institute of technology (KTH). 2009-04-23 - 2010-04-24.
2008
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Academic lectureSuul, Jon Are Wold; Uhlen, Kjetil; Undeland, Tore Marvin. (2008) Pumped Storage for Balancing Wind Power Fluctuations in an Isolated Grid. EPE Wind Energy Conference . EPE Association; Delft, The Netherlands. 2008-03-27 - 2008-03-28.
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Academic lectureSuul, Jon Are Wold; Uhlen, Kjetil; Undeland, Tore Marvin. (2008) Variable Speed Pumped Storage Hydropower for Integration of Wind Energy in Isolated Grids - Case Description and Control Strategies. NORPIE 2008 . Helsinki University of Technology, Dept. of Electrical Eng.; Espoo, Finland. 2008-06-09 - 2008-06-11.
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Academic lectureSuul, Jon Are Wold; Uhlen, Kjetil; Undeland, Tore Marvin. (2008) Wind Power Integration in Isolated Grids enabled by Variable Speed Pumped Storage Hydropower Plant. ICSET 2008 . ICSET 2008; Singapore. 2008-11-24 - 2008-11-27.
2006
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Academic lectureEek, Jarle; Uhlen, Kjetil; Gjengedal, Terje. (2006) Wind Power Contribution to Primary Frequency Response in the Nordel Power System. Nordic Wind Power Conference 2006 . Nordic Wind Power Conference; Espoo. 2006-05-22 - 2006-05-23.
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Academic lectureKorpås, Magnus; Tande, John Olav Giæver; Uhlen, Kjetil; Huse, Einar Ståle; Gjengedal, Terje. (2006) Planning and operation of large wind farms in areas with limited power transfer capacity. EWEC 2006 European Wind Energy Conference . EWEC 2006 European Wind Energy Conference; Athen. 2006-02-27 - 2006-03-02.
2005
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Academic lectureDi Marzio, Giuseppe; Eek, Jarle; Uhlen, K.; Fosso, Olav B. (2005) A PROPOSED MODEL FOR STABILITY ASSESSMENT OF ELECRTICAL POWER SYSTEMS WITH LARGE SCALE WIND POWER INTEGRATION. World Wind Energy Conference WWEC05 ; Melbourne. 2005-11-02 - 2005-11-04.
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Academic lectureDi Marzio, Giuseppe; Fosso, Olav B; Uhlen, K.; Palsson, Magni T.. (2005) LARGE-SCALE WIND POWER INTEGRATION, VOLTAGE STABILITY LIMITS AND MODAL ANALYSIS. PSCC05 ; Liege. 2005-08-22 - 2005-08-26.
1998
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Academic lectureUhlen, K.; Petterteig, A.; Kjølle, G.H.; Holen, Arne Torstein; Løvås, G.G.; Meisingset, M.. (1998) On-line security assessment and control : probabilistic versus deterministic operational criteria. European Conference on Safety and Reliability - ESREL '98 . [Mangler data]; Trondheim, 16-19 June.
1997
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Academic lecturePalsson, Magni T.; Uhlen, K.; Toftevaag, T.. (1997) Modelling and simulation of an autonomous wind/diesel system equipped with forced commutated converter. 7th European Conference on Power Electronics and Applications . [Mangler data]; Trondheim.
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Academic lectureUhlen, K.; Petterteig, A.; Kjølle, G.H.; Holen, Arne Torstein; Løvås, G.G.; Meisingset, M.. (1997) On-line security assessment and control : probabilistic vs. deterministic operational criteria. IERE Workshop: Future Directions in Power System Reliability . [Mangler data]; Palo Alto, Calif..