Kjetil Obstfelder Uhlen
Foto:
Kai T. Dragland / NTNU
About
Kjetil Uhlen (1961) is a Professor at the Department of Electric Power Engineering. He is deputy head of department for research and study programme leader for the PhD programme in Electric Power Engineering. 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
2024
-
Pokhrel, Basanta Raj;
Oleinikova, Irina;
D'Arco, Salvatore;
Acevedo, Santiago Sanchez;
Hoidalen, Hans Kristian;
Rajaretnam, Aldrich Zeno Albert.
(2024)
Advanced Digital Lab Infrastructure for the Development of Smart Power Grid.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
D'Arco, Salvatore;
Uhlen, Kjetil Obstfelder.
(2024)
A Platform for Development and Testing of WAMPAC Applications based on Kafka Streaming.
Academic chapter/article/Conference paper
-
Uhlen, Kjetil Obstfelder;
Reigstad, Tor Inge;
Hegglid, Gunne John.
(2024)
Flexible Hydropower Unit.
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Report
-
Souza, Valéria Monteiro de;
Brito, Hugo Rodrigues de;
Uhlen, Kjetil Obstfelder.
(2024)
Comparative analysis of online voltage stability indices based on synchronized PMU measurements.
Sustainable Energy, Grids and Networks
Academic article
-
Uhlen, Kjetil Obstfelder;
Reigstad, Tor Inge;
Hegglid, Gunne John;
shohreh, monshizadeh.
(2024)
Flexible Hydropower Unit.
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Report
-
Baningobera, Bwandakassy Elenga;
Oleinikova, Irina;
Uhlen, Kjetil Obstfelder.
(2024)
Enhancing Grid Resilience with the Integration of Frequency Response in Renewable Energy Systems.
Academic chapter/article/Conference paper
-
Baningobera, Bwandakassy Elenga;
Oleinikova, Irina;
Uhlen, Kjetil Obstfelder;
Pokhrel, Basanta Raj.
(2024)
Challenges and solutions in low-inertia power systems with high wind penetration.
IET Generation, Transmission & Distribution
Academic article
-
Souza, Valéria Monteiro de;
Brito, Hugo Rodrigues de;
Uhlen, Kjetil Obstfelder.
(2024)
Performance Assessment of Voltage Stability Indices for Real-Time Power Margin Estimation.
Academic chapter/article/Conference paper
-
Brito, Hugo Rodrigues de;
Souza, Valéria Monteiro de;
Uhlen, Kjetil Obstfelder.
(2024)
Impact of Secondary Voltage Regulation Dynamics on Transmission-Level Voltage Stability.
Academic chapter/article/Conference paper
2023
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil Obstfelder.
(2023)
Optimal and predictive under-frequency load shedding against critical islanding contingencies.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Johannsson, Hjortur.
(2023)
A Novel Phasor Power Oscillation Damper With Adaptive Phase Compensation, Achieved Using Multiple Model Adaptive Estimation.
IEEE Transactions on Power Systems
Academic article
-
Baltensperger, Daniel Simon;
Acevedo, Santiago Sanchez;
D'Arco, Salvatore;
Uhlen, Kjetil Obstfelder.
(2023)
Assessing Hardware in the Loop Approaches for Wide-Area Monitoring Control and Protection Devices.
IEEE Transactions on Power Delivery
Academic article
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Jóhannsson, Hjörtur.
(2023)
Achieving Enhanced Phasor POD Performance by Introducing a Control-Input Model.
Academic chapter/article/Conference paper
-
Brito, Hugo Rodrigues de;
Souza, Valeria Monteiro de;
Uhlen, Kjetil Obstfelder.
(2023)
Investigations on Secondary Voltage Control for Long-Term Reactive Power Management.
Academic chapter/article/Conference paper
-
Souza, Valeria Monteiro de;
Brito, Hugo Rodrigues de;
Uhlen, Kjetil Obstfelder.
(2023)
Comparison of Voltage Stability Indices Based on Synchronized PMU Measurements.
Academic chapter/article/Conference paper
2022
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil Obstfelder.
(2022)
Optimal Coordination of Multiple System Protection Schemes against Critical Overload Conditions.
Academic chapter/article/Conference paper
2021
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Jóhannsson, Hjörtur.
(2021)
An Open Source Power System Simulator in Python for Efficient Prototyping of WAMPAC Applications.
Academic chapter/article/Conference paper
-
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
Academic article
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil;
Acevedo, Santiago Sanchez;
D'Arco, Salvatore.
(2021)
Experimental Characterization of Methods for
Connecting Real-Time Simulations and
Synchrophasors.
Academic chapter/article/Conference paper
-
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
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
Academic article
2020
-
Haugdal, Hallvar;
Uhlen, Kjetil;
Müller, Daniel;
Jóhannsson, Hjörtur.
(2020)
Estimation of Oscillatory Mode Activity from PMU Measurements.
Academic chapter/article/Conference paper
-
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
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
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variable Speed Hydropower Conversion and Control.
IEEE transactions on energy conversion
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
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Optimized Control of Variable Speed Hydropower for Provision of Fast Frequency Reserves.
Electric power systems research
Academic article
2019
-
Hillberg, Emil;
Zegers, Antony;
Herndler, Barbara;
Wong, Steven;
Wong, Steven;
Pompee, Jean.
(2019)
Flexibility needs in the future power system.
ISGAN
ISGAN
Report
-
Uhlen, Kjetil;
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta.
(2019)
Operation and Control of hybrid AC/DC transmission grids.
Academic chapter/article/Conference paper
-
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
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
Academic article
-
Uhlen, Kjetil.
(2019)
Resultatrapport NFR
Project no 246784: Operation of the Smart Grid With Wide Area Information.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
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
Academic article
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Power Oscillation Monitoring using Statistical Learning Methods.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Mode Shape Estimation using Complex Principal Component Analysis and k-Means Clustering.
Academic chapter/article/Conference paper
2018
-
Endegnanew, Atsede Gualu;
Kalemba, Lester;
Uhlen, Kjetil.
(2018)
Using Decentralized Control Techniques for Interaction Analysis in Hybrid AC/DC Grids.
Academic chapter/article/Conference paper
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2018)
Stability Assessment of Power Systems Based on a Robust Sum-of-Squares Optimization Approach.
Academic chapter/article/Conference paper
-
Acevedo, Santiago Sanchez;
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.
Academic chapter/article/Conference paper
-
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
Academic article
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil;
Bombois, Xavier.
(2018)
Identification of Hydro turbine governors using PMU data.
Academic chapter/article/Conference paper
-
Solvang, Espen Hafstad;
Uhlen, Kjetil.
(2018)
Dynamic Simulations of Simultaneous HVDC Contingencies in the Nordic Power System Considering System Integrity Protection Schemes.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
-
Tuttelberg, Kaur;
Kilter, Jako;
Wilson, Douglas;
Uhlen, Kjetil.
(2018)
Estimation of Power System.
IEEE Transactions on Power Systems
Academic article
-
Negi, Sanjay S.;
Kishor, Nand;
Negi, Richa;
Uhlen, Kjetil.
(2018)
Event signal characterization for disturbance interpretation in power grid.
Academic chapter/article/Conference paper
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Merz, Karl Otto.
(2018)
Offshore Wind energy technology.
John Wiley & Sons
John Wiley & Sons
Academic anthology/Conference proceedings
-
Andresen, Christian Andre;
Torsæter, Bendik Nybakk;
Haugdal, Hallvar;
Uhlen, Kjetil.
(2018)
Fault Detection and Prediction in Smart Grids.
Academic chapter/article/Conference paper
-
Karlsen, David;
Uhlen, Kjetil;
Vormedal, L.
(2018)
Introducing PMU-based Applications in the Control Room Setting.
Academic chapter/article/Conference paper
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2018)
Development of a test system for identification of turbine dynamics using the dc power flow.
IFAC-PapersOnLine
Academic article
2017
-
Endegnanew, Atsede Gualu;
Bergna-Diaz, Gilbert;
Uhlen, Kjetil.
(2017)
Avoiding AC/DC grid interaction in MMC based MTDC Systems.
Academic chapter/article/Conference paper
-
Jha, Shailendra Kumar;
Støa, Petter;
Uhlen, Kjetil.
(2017)
Green and hybrid microgrid for rural electrification.
Academic chapter/article/Conference paper
-
Polster, Stefan;
Renner, Herwig;
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
Voltage Stability Monitoring using a Modified Thevenin Impedance.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
A Topology-based Scheme for Adaptive Underfrequency Load Shedding.
Academic chapter/article/Conference paper
-
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
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
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
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
Academic article
-
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil;
Negi, Richa.
(2017)
Post-processing algorithmfor damped and step-change events detection in PMU signals.
Academic chapter/article/Conference paper
-
Shweta, NN;
Kishor, Nand;
Uhlen, Kjetil;
Mohanty, S..
(2017)
Time-varying coherency study using TFC.
Academic chapter/article/Conference paper
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2017)
Vector fitting for estimation of turbine governing system parameters.
Academic chapter/article/Conference paper
2016
-
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
Academic article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Coordinated Converter Control Strategy in Hybrid AC/DC Power Systems for System Frequency Support.
Energy Procedia
Academic article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Global analysis of frequency stability and inertia in AC systems interconnected through an HVDC.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Anaya-Lara, Olimpo.
(2016)
Transient stability analysis in multi-terminal VSC-HVDC grids.
Academic chapter/article/Conference paper
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil.
(2016)
Model Predictive Load-Frequency Control.
IEEE Transactions on Power Systems
Academic article
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, Takehiro.
(2016)
Analytical Techniques and tools for power balancing assessments.
CIGRE (Conseil international des grands réseaux électriques)
CIGRE (Conseil international des grands réseaux électriques)
Report
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil;
Diaz, Gilbert Bergna;
Beerten, Jef.
(2016)
Small-signal modelling of an MMC-based HVDC link interfacing large AC systems.
Academic chapter/article/Conference paper
-
Acevedo, Santiago Sanchez;
Tedeschi, Elisabetta;
Uhlen, Kjetil;
Djustrom, Jam;
Ehnberg, Jimmy;
Segundo, Rafael.
(2016)
CloudGrid – the development of a transnational smart grid lab cooperation.
21 Annual international conference on innovation Baltic Dynamics 2016
21 Annual international conference on innovation Baltic Dynamics 2016
Report
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2016)
Two-tier approach for the design of multiple power oscillation damping controllers.
IEEE (Institute of Electrical and Electronics Engineers)
IEEE (Institute of Electrical and Electronics Engineers)
Academic anthology/Conference proceedings
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, T.
(2016)
Analytical techniques and tools for power balancing assessments.
Cigre Science & Engineering
Academic article
-
Dharmawardena, Hasala;
Uhlen, Kjetil;
Gjerde, Sverre Skalleberg.
(2016)
Modelling wind farm with synthetic inertia for power system dynamic studies.
Academic chapter/article/Conference paper
-
Kumar, Avinash;
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil.
(2016)
Signal processing and classification of synchro-phasor data.
Academic chapter/article/Conference paper
-
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
Academic article
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2016)
Socio-economic impact of a rural microgrid.
Academic chapter/article/Conference paper
2015
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Taranto, Glauco Nery;
Løvlund, Stig.
(2015)
A Comparative Case Study of Online Voltage Instability Monitoring.
Academic chapter/article/Conference paper
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2015)
A scheme for optimal coordination of reactive-power reserves in a large power system.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil.
(2015)
A test distribution grid for study of slow coherency concept.
Academic chapter/article/Conference paper
-
Tai, Vin Cent;
Uhlen, Kjetil.
(2015)
Resampling of data for offshore grid design based on kernel density estimation and genetic algorithm.
Energy Procedia
Academic article
-
Uhlen, Kjetil.
(2015)
Smart Transmission Grids Operation and Control
(STRONgrid) Sustainable Energy Systems 2050.
NTNU
NTNU
Report
-
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
Academic article
-
Haileselassie, Temesgen Mulugeta;
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Secondary control in multi-terminal VSC-HVDC transmission system.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Kalemba, Lester;
Uhlen, Kjetil;
Løvlund, Stig.
(2015)
A scheme for coordinated secondary voltage control for systems with multiple VAr reserves.
Academic chapter/article/Conference paper
-
Dharmawardena, Hasala Indika;
Uhlen, Kjetil.
(2015)
Modeling variable speed Wind turbine for power system dynamic studies.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Satertro, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver.
(2015)
Integrated modelling platform for dynamic performance assessment of floating wind turbines.
Energy Procedia
Academic article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Investigation of Dynamic Behaviour of AC/DC Power Systems.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Beerten, Jef;
Uhlen, Kjetil.
(2015)
Dynamic Interactions between Asynchronous Grids Interconnected through an MTDC System.
Academic chapter/article/Conference paper
-
Støylen, Hanne;
Uhlen, Kjetil;
Årdal, Atle Rygg.
(2015)
Laboratory demonstration of inertial response from VSC-HVDC connected wind farms.
Academic chapter/article/Conference paper
2014
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2014)
Analysis of Impacts of SVC on Voltage Collapse Mechanism and Maximum Loadability.
Academic chapter/article/Conference paper
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2014)
Microgrid: Prospects and challenges in Nepal.
Academic chapter/article/Conference paper
-
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
Academic article
-
Tai, Vin Cent;
Uhlen, Kjetil.
(2014)
Design and Optimisation of Offshore Grids in Baltic Sea for Scenario Year 2030.
Energy Procedia
Academic article
-
Marvik, Jorun Irene;
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2014)
Wind farm voltage dip measurements.
Wind Energy
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.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Hadjsaid, Nouredine.
(2014)
Dynamic Equivalents of Active Distribution Grids Based on Model Parameters Identification.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Løvlund, Stig.
(2014)
A Method for Real Time Voltage Stability Monitoring in Sub-transmission Networks.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
2013
-
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.
Academic chapter/article/Conference paper
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
The Important Role of Feature Selection when Clustering Load and Generation Scenarios.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2013)
Clustering Distributed Generation Using the Instantaneous Euclidean Distance in Polar Coordinates.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
He, Wei;
Uhlen, Kjetil;
Hadiya, Maheshkumar;
Shi, Gang;
Rio, Emilio del.
(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
Academic article
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
Scenario Selection by Unsupervised Learning in Reliability Analysis of Transmission Networks.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2013)
Power System Security in a Meshed North Sea HVDC Grid.
Proceedings of the IEEE
Academic article
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2013)
Online voltage stability monitoring based on PMU measurements and system topology.
Academic chapter/article/Conference paper
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Adaramola, Muyiwa S..
(2013)
Control Challenges and Possibilities for Offshore Wind Farms.
SINTEF Energi AS
SINTEF Energi AS
Report
2012
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik;
Toftevaag, Trond.
(2012)
External Grid Representation for Assessing Fault Ride Through Capabilities of Distributed Generation Units.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2012)
An overview of the present grid codes for integration of distributed generation.
Academic chapter/article/Conference paper
-
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
-
Uhlen, Kjetil;
Cirio, Diego.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
SINTEF Energi
SINTEF Energi
Report
-
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
-
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
Academic article
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Supervised and Unsupervised Learning in Composite Reliability Evaluation.
Academic chapter/article/Conference paper
-
Hillberg, Karl Emil;
Trengereid, F.;
Breidablik, Ø.;
Uhlen, Kjetil;
Kjølle, Gerd Hovin;
Løvlund, S..
(2012)
System Integrity Protection Schemes - Increasing operational Security and System Capacity.
Academic chapter/article/Conference paper
-
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
Academic 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.
Academic chapter/article/Conference paper
-
Uhlen, Kjetil;
Vanfretti, L;
Oliveira, M de;
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
-
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
Academic article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2012)
Precise control of power flow in multiterminal VSC-HVDCs using DC voltage droop control.
Academic chapter/article/Conference paper
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Averanging Operating States with Infinite Mixtures in Reliability Analysis of Transmission Networks.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2012)
Control, Dynamics and Operation of Multi-terminal VSC-HVDC Transmission Systems.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU, 1503-8181 (2012:354)
Doctoral dissertation
-
Lindeberg, Eivind;
Svendsen, Harald Georg;
Uhlen, Kjetil.
(2012)
Smooth Transition Between Controllers for Floating Wind Turbines.
Energy Procedia
Academic article
-
Uhlen, Kjetil.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
SINTEF Energi AS
SINTEF Energi AS
Report
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Data reduction via clustering and averaging for contingency and reliability analysis.
International Journal of Electrical Power & Energy Systems
Academic article
2011
-
Svendsen, Harald Georg;
Hadiya, Maheshkumar;
Øyslebø, Eirik Veirød;
Uhlen, Kjetil.
(2011)
Integration of offshore wind farm with multiple oil and gas platforms.
Academic chapter/article/Conference paper
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, D;
Jensen, KB;
Duthaler, C.
(2011)
Quais os desafios e como serao os sistemas de transmissao do futuro?.
Eletricidade Moderna
Academic 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.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Olguin, Raymundo E. Torres;
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.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2011)
Power Flow Analysis of Multi-terminal HVDC Networks.
Academic chapter/article/Conference paper
-
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
-
Johansson, Emil;
Uhlen, Kjetil;
Kjølle, Gerd;
Toftevaag, Trond.
(2011)
RELIABILITY EVALUATION OF WIDE AREA MONITORING APPLICATIONS AND EXTREME CONTINGENCIES.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Sætertrø, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver.
(2011)
Performance assessment of floating wind turbines
during grid faults.
Academic chapter/article/Conference paper
2010
-
He, Wei;
Jacobsen, Gunnar;
Anderson, Tiit;
Olsen, Freydar;
Hanson, Tor;
Korpås, Magnus.
(2010)
The Potential of Integrating Wind Power with
Offshore Oil and Gas Platforms.
Wind Engineering : The International Journal of Wind Power
Academic article
-
Chaudhuri, N.R.;
Domahidi, A.;
Majumder, R.;
Chaudhuri, B.;
Korba, P.;
Ray, S..
(2010)
Wide-area power oscillation damping control in Nordic equivalent system.
IET Generation, Transmission & Distribution
Academic article
-
Johansson, Emil;
Uhlen, Kjetil;
Nybø, Agnes;
Kjølle, Gerd;
Gjerde, Oddbjørn.
(2010)
Extraordinary events: Understanding sequence, causes, and remedies.
Academic chapter/article/Conference paper
-
Chaudhuri, Nilanjan Ray;
Domahidi, Alexander;
Chaudhuri, Balarko;
Majumder, Rajat;
Korba, Petr;
Ray, Swakshar.
(2010)
Power oscillation damping control using wide-area signals: A case study on Nordic equivalent system.
Academic chapter/article/Conference paper
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, K.;
Jensen, KB;
Duthaler, C.
(2010)
IEA Enard: - International collaboration on developments in transmission systems R&D.
Academic chapter/article/Conference paper
-
Korba, Petr;
Uhlen, Kjetil.
(2010)
Wide-area monitoring of electromechanical oscillations in the Nordic power system: practical experience.
IET Generation, Transmission & Distribution
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
2009
-
Tande, John Olav Giæver;
Korpås, Magnus;
Warland, Leif;
Uhlen, Kjetil;
Hulle, Frans van.
(2009)
Impact of TradeWind offshore wind power capacity scenarios on power flows in the European HV network.
Academic chapter/article/Conference paper
-
Warland, Leif;
Korpås, Magnus;
Tande, John Olav Giæver;
Uhlen, Kjetil Obstfelder.
(2009)
Cross-border transmission upgrade with increasing wind power penetration.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
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.
Academic chapter/article/Conference paper
-
Sørensen, Poul;
Norheim, Ian;
Meibom, Peter;
Uhlen, Kjetil.
(2008)
Simulations of wind power integration with complementary power system planning tools.
Electric power systems research
Academic article
2006
-
Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2006)
Wind Power Contribution to Primery Frequency Response in the Nordel Power System.
Nordic Wind Power Conference
Nordic Wind Power Conference
Report
-
Eek, Jarle;
Gjengedal, Terje;
Uhlen, Kjetil.
(2006)
Influence of High Wind Power Penetration on the Nordic Power Grid Primary Control Response.
CIGRE
CIGRE
Report
-
Eek, Jarle;
Marzio, Giuseppe Di;
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.
EWEC 2006
EWEC 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
Academic article
2005
-
Marzio, Giuseppe Di;
Eek, Jarle;
Uhlen, Kjetil;
Fosso, Olav B.
(2005)
A proposed model for stability assessment of electrical power systems with large scale wind power integration.
Academic chapter/article/Conference paper
-
Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Transient stability studies comparing synchronous and doubly fed induction generators.
Academic chapter/article/Conference paper
-
Marzio, Giuseppe Di;
Fosso, Olav B;
Uhlen, Kjetil;
Palsson, Magni T..
(2005)
Large-Scale Wind Power Integration - Voltage Stability Limits and Modal Analysis.
Academic chapter/article/Conference paper
-
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Options for large scale integration of wind power.
Academic chapter/article/Conference paper
2004
-
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
Academic article
-
Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System - Executive Summary.
SINTEF Energi AS
SINTEF Energi AS
Report
-
Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System.
SINTEF Energi AS
SINTEF Energi AS
Report
2003
-
Pálsson, Magni Tor;
Toftevaag, Trond;
Uhlen, Kjetil;
Tande, John Olav Giæver.
(2003)
Control concepts to enable increased wind power penetration.
Academic chapter/article/Conference paper
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.
Academic chapter/article/Conference paper
2001
-
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2001)
Wind turbines in weak grids-constraints and solutions.
Academic chapter/article/Conference paper
2000
-
Grande, Ove Steinar;
Uhlen, Kjetil Obstfelder;
Bakken, Bjørn Harald;
Hernes, Magnar;
Fosso, Olav Bjarte.
(2000)
Operational Security Assessment - Planning and Control.
SINTEF Energi AS
SINTEF Energi AS
Report
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.
Academic chapter/article/Conference paper
Journal publications
-
Souza, Valéria Monteiro de;
Brito, Hugo Rodrigues de;
Uhlen, Kjetil Obstfelder.
(2024)
Comparative analysis of online voltage stability indices based on synchronized PMU measurements.
Sustainable Energy, Grids and Networks
Academic article
-
Baningobera, Bwandakassy Elenga;
Oleinikova, Irina;
Uhlen, Kjetil Obstfelder;
Pokhrel, Basanta Raj.
(2024)
Challenges and solutions in low-inertia power systems with high wind penetration.
IET Generation, Transmission & Distribution
Academic article
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Johannsson, Hjortur.
(2023)
A Novel Phasor Power Oscillation Damper With Adaptive Phase Compensation, Achieved Using Multiple Model Adaptive Estimation.
IEEE Transactions on Power Systems
Academic article
-
Baltensperger, Daniel Simon;
Acevedo, Santiago Sanchez;
D'Arco, Salvatore;
Uhlen, Kjetil Obstfelder.
(2023)
Assessing Hardware in the Loop Approaches for Wide-Area Monitoring Control and Protection Devices.
IEEE Transactions on Power Delivery
Academic 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
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
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
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
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
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Variable Speed Hydropower Conversion and Control.
IEEE transactions on energy conversion
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
Academic article
-
Reigstad, Tor Inge;
Uhlen, Kjetil.
(2020)
Optimized Control of Variable Speed Hydropower for Provision of Fast Frequency Reserves.
Electric power systems research
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
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
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
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
Academic article
-
Tuttelberg, Kaur;
Kilter, Jako;
Wilson, Douglas;
Uhlen, Kjetil.
(2018)
Estimation of Power System.
IEEE Transactions on Power Systems
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
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
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
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
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
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
Academic article
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Coordinated Converter Control Strategy in Hybrid AC/DC Power Systems for System Frequency Support.
Energy Procedia
Academic article
-
Ersdal, Anne Mai;
Imsland, Lars Struen;
Uhlen, Kjetil.
(2016)
Model Predictive Load-Frequency Control.
IEEE Transactions on Power Systems
Academic article
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, T.
(2016)
Analytical techniques and tools for power balancing assessments.
Cigre Science & Engineering
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
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
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
Academic article
-
Endegnanew, Atsede Gualu;
Satertro, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver.
(2015)
Integrated modelling platform for dynamic performance assessment of floating wind turbines.
Energy Procedia
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
Academic article
-
Tai, Vin Cent;
Uhlen, Kjetil.
(2014)
Design and Optimisation of Offshore Grids in Baltic Sea for Scenario Year 2030.
Energy Procedia
Academic article
-
Marvik, Jorun Irene;
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2014)
Wind farm voltage dip measurements.
Wind Energy
Academic article
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2013)
Códigos de rede atuais para integração da geração distribuída.
Eletricidade Moderna
Academic article
-
He, Wei;
Uhlen, Kjetil;
Hadiya, Maheshkumar;
Shi, Gang;
Rio, Emilio del.
(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
Academic article
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2013)
Power System Security in a Meshed North Sea HVDC Grid.
Proceedings of the IEEE
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
-
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
-
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
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
Academic article
-
Uhlen, Kjetil;
Vanfretti, L;
Oliveira, M de;
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
-
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
Academic article
-
Lindeberg, Eivind;
Svendsen, Harald Georg;
Uhlen, Kjetil.
(2012)
Smooth Transition Between Controllers for Floating Wind Turbines.
Energy Procedia
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
Academic article
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, D;
Jensen, KB;
Duthaler, C.
(2011)
Quais os desafios e como serao os sistemas de transmissao do futuro?.
Eletricidade Moderna
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
-
He, Wei;
Jacobsen, Gunnar;
Anderson, Tiit;
Olsen, Freydar;
Hanson, Tor;
Korpås, Magnus.
(2010)
The Potential of Integrating Wind Power with
Offshore Oil and Gas Platforms.
Wind Engineering : The International Journal of Wind Power
Academic article
-
Chaudhuri, N.R.;
Domahidi, A.;
Majumder, R.;
Chaudhuri, B.;
Korba, P.;
Ray, S..
(2010)
Wide-area power oscillation damping control in Nordic equivalent system.
IET Generation, Transmission & Distribution
Academic article
-
Korba, Petr;
Uhlen, Kjetil.
(2010)
Wide-area monitoring of electromechanical oscillations in the Nordic power system: practical experience.
IET Generation, Transmission & Distribution
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
-
Sørensen, Poul;
Norheim, Ian;
Meibom, Peter;
Uhlen, Kjetil.
(2008)
Simulations of wind power integration with complementary power system planning tools.
Electric power systems research
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
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
Academic article
Books
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Merz, Karl Otto.
(2018)
Offshore Wind energy technology.
John Wiley & Sons
John Wiley & Sons
Academic anthology/Conference proceedings
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2016)
Two-tier approach for the design of multiple power oscillation damping controllers.
IEEE (Institute of Electrical and Electronics Engineers)
IEEE (Institute of Electrical and Electronics Engineers)
Academic anthology/Conference proceedings
Part of book/report
-
Pokhrel, Basanta Raj;
Oleinikova, Irina;
D'Arco, Salvatore;
Acevedo, Santiago Sanchez;
Hoidalen, Hans Kristian;
Rajaretnam, Aldrich Zeno Albert.
(2024)
Advanced Digital Lab Infrastructure for the Development of Smart Power Grid.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
D'Arco, Salvatore;
Uhlen, Kjetil Obstfelder.
(2024)
A Platform for Development and Testing of WAMPAC Applications based on Kafka Streaming.
Academic chapter/article/Conference paper
-
Baningobera, Bwandakassy Elenga;
Oleinikova, Irina;
Uhlen, Kjetil Obstfelder.
(2024)
Enhancing Grid Resilience with the Integration of Frequency Response in Renewable Energy Systems.
Academic chapter/article/Conference paper
-
Souza, Valéria Monteiro de;
Brito, Hugo Rodrigues de;
Uhlen, Kjetil Obstfelder.
(2024)
Performance Assessment of Voltage Stability Indices for Real-Time Power Margin Estimation.
Academic chapter/article/Conference paper
-
Brito, Hugo Rodrigues de;
Souza, Valéria Monteiro de;
Uhlen, Kjetil Obstfelder.
(2024)
Impact of Secondary Voltage Regulation Dynamics on Transmission-Level Voltage Stability.
Academic chapter/article/Conference paper
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil Obstfelder.
(2023)
Optimal and predictive under-frequency load shedding against critical islanding contingencies.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Jóhannsson, Hjörtur.
(2023)
Achieving Enhanced Phasor POD Performance by Introducing a Control-Input Model.
Academic chapter/article/Conference paper
-
Brito, Hugo Rodrigues de;
Souza, Valeria Monteiro de;
Uhlen, Kjetil Obstfelder.
(2023)
Investigations on Secondary Voltage Control for Long-Term Reactive Power Management.
Academic chapter/article/Conference paper
-
Souza, Valeria Monteiro de;
Brito, Hugo Rodrigues de;
Uhlen, Kjetil Obstfelder.
(2023)
Comparison of Voltage Stability Indices Based on Synchronized PMU Measurements.
Academic chapter/article/Conference paper
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil Obstfelder.
(2022)
Optimal Coordination of Multiple System Protection Schemes against Critical Overload Conditions.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
Uhlen, Kjetil Obstfelder;
Jóhannsson, Hjörtur.
(2021)
An Open Source Power System Simulator in Python for Efficient Prototyping of WAMPAC Applications.
Academic chapter/article/Conference paper
-
Baltensperger, Daniel Simon;
Uhlen, Kjetil;
Acevedo, Santiago Sanchez;
D'Arco, Salvatore.
(2021)
Experimental Characterization of Methods for
Connecting Real-Time Simulations and
Synchrophasors.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
Uhlen, Kjetil;
Müller, Daniel;
Jóhannsson, Hjörtur.
(2020)
Estimation of Oscillatory Mode Activity from PMU Measurements.
Academic chapter/article/Conference paper
-
Uhlen, Kjetil;
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta.
(2019)
Operation and Control of hybrid AC/DC transmission grids.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Power Oscillation Monitoring using Statistical Learning Methods.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
Haugdal, Hallvar;
Uhlen, Kjetil.
(2019)
Mode Shape Estimation using Complex Principal Component Analysis and k-Means Clustering.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Kalemba, Lester;
Uhlen, Kjetil.
(2018)
Using Decentralized Control Techniques for Interaction Analysis in Hybrid AC/DC Grids.
Academic chapter/article/Conference paper
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2018)
Stability Assessment of Power Systems Based on a Robust Sum-of-Squares Optimization Approach.
Academic chapter/article/Conference paper
-
Acevedo, Santiago Sanchez;
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.
Academic chapter/article/Conference paper
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil;
Bombois, Xavier.
(2018)
Identification of Hydro turbine governors using PMU data.
Academic chapter/article/Conference paper
-
Negi, Sanjay S.;
Kishor, Nand;
Negi, Richa;
Uhlen, Kjetil.
(2018)
Event signal characterization for disturbance interpretation in power grid.
Academic chapter/article/Conference paper
-
Andresen, Christian Andre;
Torsæter, Bendik Nybakk;
Haugdal, Hallvar;
Uhlen, Kjetil.
(2018)
Fault Detection and Prediction in Smart Grids.
Academic chapter/article/Conference paper
-
Karlsen, David;
Uhlen, Kjetil;
Vormedal, L.
(2018)
Introducing PMU-based Applications in the Control Room Setting.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Bergna-Diaz, Gilbert;
Uhlen, Kjetil.
(2017)
Avoiding AC/DC grid interaction in MMC based MTDC Systems.
Academic chapter/article/Conference paper
-
Jha, Shailendra Kumar;
Støa, Petter;
Uhlen, Kjetil.
(2017)
Green and hybrid microgrid for rural electrification.
Academic chapter/article/Conference paper
-
Polster, Stefan;
Renner, Herwig;
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
Voltage Stability Monitoring using a Modified Thevenin Impedance.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2017)
A Topology-based Scheme for Adaptive Underfrequency Load Shedding.
Academic chapter/article/Conference paper
-
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil;
Negi, Richa.
(2017)
Post-processing algorithmfor damped and step-change events detection in PMU signals.
Academic chapter/article/Conference paper
-
Shweta, NN;
Kishor, Nand;
Uhlen, Kjetil;
Mohanty, S..
(2017)
Time-varying coherency study using TFC.
Academic chapter/article/Conference paper
-
Jakobsen, Sigurd Hofsmo;
Uhlen, Kjetil.
(2017)
Vector fitting for estimation of turbine governing system parameters.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2016)
Global analysis of frequency stability and inertia in AC systems interconnected through an HVDC.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Anaya-Lara, Olimpo.
(2016)
Transient stability analysis in multi-terminal VSC-HVDC grids.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil;
Diaz, Gilbert Bergna;
Beerten, Jef.
(2016)
Small-signal modelling of an MMC-based HVDC link interfacing large AC systems.
Academic chapter/article/Conference paper
-
Dharmawardena, Hasala;
Uhlen, Kjetil;
Gjerde, Sverre Skalleberg.
(2016)
Modelling wind farm with synthetic inertia for power system dynamic studies.
Academic chapter/article/Conference paper
-
Kumar, Avinash;
Negi, Sanjay Singh;
Kishor, Nand;
Uhlen, Kjetil.
(2016)
Signal processing and classification of synchro-phasor data.
Academic chapter/article/Conference paper
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2016)
Socio-economic impact of a rural microgrid.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Taranto, Glauco Nery;
Løvlund, Stig.
(2015)
A Comparative Case Study of Online Voltage Instability Monitoring.
Academic chapter/article/Conference paper
-
Kalemba, Lester;
Uhlen, Kjetil;
Hovd, Morten.
(2015)
A scheme for optimal coordination of reactive-power reserves in a large power system.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil.
(2015)
A test distribution grid for study of slow coherency concept.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Secondary control in multi-terminal VSC-HVDC transmission system.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Kalemba, Lester;
Uhlen, Kjetil;
Løvlund, Stig.
(2015)
A scheme for coordinated secondary voltage control for systems with multiple VAr reserves.
Academic chapter/article/Conference paper
-
Dharmawardena, Hasala Indika;
Uhlen, Kjetil.
(2015)
Modeling variable speed Wind turbine for power system dynamic studies.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Uhlen, Kjetil.
(2015)
Investigation of Dynamic Behaviour of AC/DC Power Systems.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Beerten, Jef;
Uhlen, Kjetil.
(2015)
Dynamic Interactions between Asynchronous Grids Interconnected through an MTDC System.
Academic chapter/article/Conference paper
-
Støylen, Hanne;
Uhlen, Kjetil;
Årdal, Atle Rygg.
(2015)
Laboratory demonstration of inertial response from VSC-HVDC connected wind farms.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2014)
Analysis of Impacts of SVC on Voltage Collapse Mechanism and Maximum Loadability.
Academic chapter/article/Conference paper
-
Jha, S.K.;
Støa, Petter;
Uhlen, Kjetil.
(2014)
Microgrid: Prospects and challenges in Nepal.
Academic chapter/article/Conference paper
-
Kile, Håkon;
Uhlen, Kjetil;
Warland, Leif;
Kjølle, Gerd Hovin.
(2014)
A Comparison of AC and DC Power Flow Models for Contingency and Reliability Analysis.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Hadjsaid, Nouredine.
(2014)
Dynamic Equivalents of Active Distribution Grids Based on Model Parameters Identification.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Uhlen, Kjetil;
Løvlund, Stig.
(2014)
A Method for Real Time Voltage Stability Monitoring in Sub-transmission Networks.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
The Important Role of Feature Selection when Clustering Load and Generation Scenarios.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2013)
Clustering Distributed Generation Using the Instantaneous Euclidean Distance in Polar Coordinates.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik;
Toftevaag, Trond.
(2013)
Dynamic equivalents of active distribution power systems for investigation of transient stability.
Academic chapter/article/Conference paper
-
Kile, Håkon;
Uhlen, Kjetil;
Kjølle, Gerd Hovin.
(2013)
Scenario Selection by Unsupervised Learning in Reliability Analysis of Transmission Networks.
Academic chapter/article/Conference paper
-
Duong, Dinh Thuc;
Uhlen, Kjetil.
(2013)
Online voltage stability monitoring based on PMU measurements and system topology.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik;
Toftevaag, Trond.
(2012)
External Grid Representation for Assessing Fault Ride Through Capabilities of Distributed Generation Units.
Academic chapter/article/Conference paper
-
Preda, Traian Nicolae;
Uhlen, Kjetil;
Nordgård, Dag Eirik.
(2012)
An overview of the present grid codes for integration of distributed generation.
Academic chapter/article/Conference paper
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Supervised and Unsupervised Learning in Composite Reliability Evaluation.
Academic chapter/article/Conference paper
-
Hillberg, Karl Emil;
Trengereid, F.;
Breidablik, Ø.;
Uhlen, Kjetil;
Kjølle, Gerd Hovin;
Løvlund, S..
(2012)
System Integrity Protection Schemes - Increasing operational Security and System Capacity.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2012)
Precise control of power flow in multiterminal VSC-HVDCs using DC voltage droop control.
Academic chapter/article/Conference paper
-
Kile, Håkon;
Uhlen, Kjetil.
(2012)
Averanging Operating States with Infinite Mixtures in Reliability Analysis of Transmission Networks.
Academic chapter/article/Conference paper
-
Svendsen, Harald Georg;
Hadiya, Maheshkumar;
Øyslebø, Eirik Veirød;
Uhlen, Kjetil.
(2011)
Integration of offshore wind farm with multiple oil and gas platforms.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Olguin, Raymundo E. Torres;
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.
Academic chapter/article/Conference paper
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil.
(2011)
Power Flow Analysis of Multi-terminal HVDC Networks.
Academic chapter/article/Conference paper
-
Johansson, Emil;
Uhlen, Kjetil;
Kjølle, Gerd;
Toftevaag, Trond.
(2011)
RELIABILITY EVALUATION OF WIDE AREA MONITORING APPLICATIONS AND EXTREME CONTINGENCIES.
Academic chapter/article/Conference paper
-
Endegnanew, Atsede Gualu;
Sætertrø, Kristian;
Gjerde, Sverre Skalleberg;
Svendsen, Harald Georg;
Anaya-Lara, Olimpo;
Tande, John Olav Giæver.
(2011)
Performance assessment of floating wind turbines
during grid faults.
Academic chapter/article/Conference paper
-
Johansson, Emil;
Uhlen, Kjetil;
Nybø, Agnes;
Kjølle, Gerd;
Gjerde, Oddbjørn.
(2010)
Extraordinary events: Understanding sequence, causes, and remedies.
Academic chapter/article/Conference paper
-
Chaudhuri, Nilanjan Ray;
Domahidi, Alexander;
Chaudhuri, Balarko;
Majumder, Rajat;
Korba, Petr;
Ray, Swakshar.
(2010)
Power oscillation damping control using wide-area signals: A case study on Nordic equivalent system.
Academic chapter/article/Conference paper
-
Uhlen, Kjetil;
Cirio, D;
Haarla, L;
Bekaert, K.;
Jensen, KB;
Duthaler, C.
(2010)
IEA Enard: - International collaboration on developments in transmission systems R&D.
Academic chapter/article/Conference paper
-
Tande, John Olav Giæver;
Korpås, Magnus;
Warland, Leif;
Uhlen, Kjetil;
Hulle, Frans van.
(2009)
Impact of TradeWind offshore wind power capacity scenarios on power flows in the European HV network.
Academic chapter/article/Conference paper
-
Warland, Leif;
Korpås, Magnus;
Tande, John Olav Giæver;
Uhlen, Kjetil Obstfelder.
(2009)
Cross-border transmission upgrade with increasing wind power penetration.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
-
Suul, Jon Are Wold;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2008)
Wind Power Integration in Isolated Grids enabled by Variable Speed Pumped Storage Hydropower Plant.
Academic chapter/article/Conference paper
-
Marzio, Giuseppe Di;
Eek, Jarle;
Uhlen, Kjetil;
Fosso, Olav B.
(2005)
A proposed model for stability assessment of electrical power systems with large scale wind power integration.
Academic chapter/article/Conference paper
-
Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Transient stability studies comparing synchronous and doubly fed induction generators.
Academic chapter/article/Conference paper
-
Marzio, Giuseppe Di;
Fosso, Olav B;
Uhlen, Kjetil;
Palsson, Magni T..
(2005)
Large-Scale Wind Power Integration - Voltage Stability Limits and Modal Analysis.
Academic chapter/article/Conference paper
-
Tande, John Olav Giæver;
Uhlen, Kjetil;
Gjengedal, Terje.
(2005)
Options for large scale integration of wind power.
Academic chapter/article/Conference paper
-
Pálsson, Magni Tor;
Toftevaag, Trond;
Uhlen, Kjetil;
Tande, John Olav Giæver.
(2003)
Control concepts to enable increased wind power penetration.
Academic chapter/article/Conference paper
-
Pálsson, Magni Tor;
Toftevaag, Trond;
Uhlen, Kjetil;
Tande, John Olav Giæver.
(2002)
Large-scale wind power integration and voltage stability limits in regional networks.
Academic chapter/article/Conference paper
-
Tande, John Olav Giæver;
Uhlen, Kjetil.
(2001)
Wind turbines in weak grids-constraints and solutions.
Academic chapter/article/Conference paper
-
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.
Academic chapter/article/Conference paper
Report
-
Uhlen, Kjetil Obstfelder;
Reigstad, Tor Inge;
Hegglid, Gunne John.
(2024)
Flexible Hydropower Unit.
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Report
-
Uhlen, Kjetil Obstfelder;
Reigstad, Tor Inge;
Hegglid, Gunne John;
shohreh, monshizadeh.
(2024)
Flexible Hydropower Unit.
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Norwegian Research Centre for Hydropower Technology TRONDHEIM
Report
-
Hillberg, Emil;
Zegers, Antony;
Herndler, Barbara;
Wong, Steven;
Wong, Steven;
Pompee, Jean.
(2019)
Flexibility needs in the future power system.
ISGAN
ISGAN
Report
-
Uhlen, Kjetil.
(2019)
Resultatrapport NFR
Project no 246784: Operation of the Smart Grid With Wide Area Information.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Report
-
Solvang, Espen Hafstad;
Uhlen, Kjetil.
(2018)
Dynamic Simulations of Simultaneous HVDC Contingencies in the Nordic Power System Considering System Integrity Protection Schemes.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
-
Uhlen, Kjetil;
Jaehnert, Stefan;
Hamon, Camille;
Bruno, C;
Farahmand, Hossein;
Inoue, Takehiro.
(2016)
Analytical Techniques and tools for power balancing assessments.
CIGRE (Conseil international des grands réseaux électriques)
CIGRE (Conseil international des grands réseaux électriques)
Report
-
Acevedo, Santiago Sanchez;
Tedeschi, Elisabetta;
Uhlen, Kjetil;
Djustrom, Jam;
Ehnberg, Jimmy;
Segundo, Rafael.
(2016)
CloudGrid – the development of a transnational smart grid lab cooperation.
21 Annual international conference on innovation Baltic Dynamics 2016
21 Annual international conference on innovation Baltic Dynamics 2016
Report
-
Uhlen, Kjetil.
(2015)
Smart Transmission Grids Operation and Control
(STRONgrid) Sustainable Energy Systems 2050.
NTNU
NTNU
Report
-
Anaya-Lara, Olimpo;
Tande, John Olav Giæver;
Uhlen, Kjetil;
Adaramola, Muyiwa S..
(2013)
Control Challenges and Possibilities for Offshore Wind Farms.
SINTEF Energi AS
SINTEF Energi AS
Report
-
Uhlen, Kjetil;
Cirio, Diego.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
SINTEF Energi
SINTEF Energi
Report
-
Haileselassie, Temesgen Mulugeta;
Uhlen, Kjetil;
Undeland, Tore Marvin.
(2012)
Control, Dynamics and Operation of Multi-terminal VSC-HVDC Transmission Systems.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU, 1503-8181 (2012:354)
Doctoral dissertation
-
Uhlen, Kjetil.
(2012)
IEA Implementing Agreement on Electricity Networks Analysis, Research & Development (ENARD)Annex IV: - Transmission SystemsFinal report.
SINTEF Energi AS
SINTEF Energi AS
Report
-
Eek, Jarle;
Uhlen, Kjetil;
Gjengedal, Terje.
(2006)
Wind Power Contribution to Primery Frequency Response in the Nordel Power System.
Nordic Wind Power Conference
Nordic Wind Power Conference
Report
-
Eek, Jarle;
Gjengedal, Terje;
Uhlen, Kjetil.
(2006)
Influence of High Wind Power Penetration on the Nordic Power Grid Primary Control Response.
CIGRE
CIGRE
Report
-
Eek, Jarle;
Marzio, Giuseppe Di;
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.
EWEC 2006
EWEC 2006
Report
-
Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System - Executive Summary.
SINTEF Energi AS
SINTEF Energi AS
Report
-
Doorman, Gerard L.;
Kjølle, Gerd Hovin;
Uhlen, Kjetil Obstfelder;
Huse, Einar Ståle;
Flatabø, Nils.
(2004)
Vulnerability of the Nordic Power System.
SINTEF Energi AS
SINTEF Energi AS
Report
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Grande, Ove Steinar;
Uhlen, Kjetil Obstfelder;
Bakken, Bjørn Harald;
Hernes, Magnar;
Fosso, Olav Bjarte.
(2000)
Operational Security Assessment - Planning and Control.
SINTEF Energi AS
SINTEF Energi AS
Report
Teaching
Courses
- IELEG3230 - Stability in power grids, modelling and analysis
- TET4575 - Power System Operation and Analysis, Specialisation Course
- ET8105 - Power System Operation and Control
- HAV6002 - Electric infrastructure and system integration
- ET6203 - Integration of converter interfaced generation and loads in the power grid
- TET4180 - Power System Dynamics and Control
- ET6202 - Protection and monitoring in distribution networks
Outreach
2025
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LectureUhlen, Kjetil Obstfelder. (2025) Improved coordination between transmission system operators through Wide Area Monitoring (WAMS). Tutorial at CIGRE Symposium 2025 , Trondheim 2025-05-12 - 2025-05-15
2024
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LecturePokhrel, Basanta Raj; Oleinikova, Irina; D'Arco, Salvatore; Sanchez, Santiago; Hoidalen, Hans Kristian; Zeno, Aldrich. (2024) Advanced digital lab infrastructure for the development of smart power grid. UPEC 2024 , Cardiff, Wales, U.K. 2024-09-02 - 2024-09-06
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 , 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 , 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 2020-12-28 -
2018
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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 , Université d'Lorraine, Nancy 2018-03-21 - 2018-03-22
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Academic lectureAcevedo, Santiago Sanchez; 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 , Washington 2018-10-21 - 2018-10-23
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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
2017
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Academic lectureSevilla, F. R. Segundo; 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 , Washington DC 2017-04-23 - 2017-04-26
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Academic lectureSevilla, F. R. Segundo; Korba, Petr; Hillberg, Emil; Lindahl, G.; Uhlen, Kjetil. (2017) Robustness Assessment of the Continental European Power System Dynamic Model. Elkraft 2017 , Chalmers, Gøteborg 2017-05-17 - 2017-05-18
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Academic lectureHillberg, Emil; Lindahl, G.; Pinares, G.; Sevilla, F. R. Segundo; Korba, Petr; Uhlen, Kjetil. (2017) Frequency stability assessment of decreased conventional production in the continental European power system. Cigre Symposium , Dublin 2017-05-30 - 2017-06-02
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 , 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" , Oslo 2016-11-29 - 2016-11-30
2015
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LectureToftevaag, Trond; Uhlen, Kjetil. (2015) Stabilitet i kraftsystemet Del 1 og Del 2. Kurs , Oslo 2015-11-19 - 2015-11-26
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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 , Trondheim 2015-02-04 - 2015-02-06
2014
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Academic lectureCutululis, N; Zeni, Lorenzo; El-Khatib, Walid Ziad; Holbøll, Joachim; Sørensen, Poul; Stamatiou, Georgios. (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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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 , Radisson Blu Royal Garden Hotel, Kjøpmannsgata 73, Trondheim 2014-01-22 - 2014-01-24
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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 , National Harbour, Washington DC 2014-07-27 - 2014-07-31
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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 , Oslo 2014-10-14 -
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) , 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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Academic lectureHaileselassie, Temesgen Mulugeta; Olguin, Raymundo E. Torres; 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 2011-06-19 - 2011-06-22
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Academic lectureJohansson, Emil; Uhlen, Kjetil; Kjølle, Gerd. (2011) Mitigating Extraordinary Events using Wide Area Monitoring Applications. CIGRE Symposium , Recife, Pernambuco 2011-04-03 - 2011-04-06
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PosterAnaya-Lara, Olimpo; Endegnanew, Atsede Gualu; Tande, John Olav Giæver; Svendsen, Harald Georg; Uhlen, Kjetil; Gjerde, Sverre Skalleberg. (2011) Performance assessment of floating wind turbines during grid faults. European Offshore Wind Conference , Amsterdam 2011-11-29 - 2011-12-01
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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 , Recife, Pernambuco, Brazil 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. , 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 , 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 , 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 , Delft, The Netherlands 2008-03-27 - 2008-03-28
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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 , Singapore 2008-11-24 - 2008-11-27
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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 , Espoo, Finland 2008-06-09 - 2008-06-11
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 , 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 , Athen 2006-02-27 - 2006-03-02
2005
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Academic lectureMarzio, Giuseppe Di; 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 lectureMarzio, Giuseppe Di; 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 , Trondheim, 16-19 June
1997
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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 , Palo Alto, Calif.
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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 , Trondheim