Pål Stabel Keim
+4799472950
E419, Elektro E Gløshaugen, Trondheim
About
I work in the field of high voltage apparatus, electrical machines and power electronics in the Electric Machines and Electromagnetics Group (EME). I am interested in how a system-oriented perspective and digital tools can help improve the design of electrical systems and components from the generation to the consumption side. I am active in the design of electric drive trains for offshore wind, maritime propulsion, and electric aircraft.
My research focus:
- System-oriented, multi-disciplinary design and optimisation of electric machines
- Insulation design for HVDC, HVAC and inverter-fed machines
- Partial discharges
Received two research awards: Nowitech Innovation award (2015) and Grønn fases energipris (2016) for a compact, high voltage generator.
Keywords: High Voltage Apparatus, Electric Ageing Mechanisms, High Voltage Electric Machines, Partial Discharges, HVDC systems, Wind Energy, Electric Aviation, Electrostatic Machines
Competencies
Publications
2024
-
Rocha, Lorrana Faria Da;
Verkroost, Lynn;
Vansompel, Hendrik;
Keim, Pål Stabel.
(2024)
Investigation of DC-bus control modes and impacts on energy yield for a modular HVDC wind drive train.
IET Renewable Power Generation
Academic article
-
Verkroost, Lynn;
Belie, Frederik De;
Rocha, Lorrana Faria Da;
Keim, Pål Stabel;
Sergeant, Peter;
Vansompel, Hendrik.
(2024)
Multi-Agent Control Scheme for Power Distribution in a Multi-Three-Phase Motor Drive Fed by a Stacked Polyphase Bridges Converter.
IEEE transactions on energy conversion
Academic article
-
Wang, Wei;
Nøland, Jonas Kristiansen;
Keim, Pål Stabel.
(2024)
Power Loss Analysis of Two-Level and Three-Level Converters under Active Short-Circuit Operating Conditions for Multi-Lane Electric Aviation Applications.
Academic chapter/article/Conference paper
-
Wang, Wei;
Nøland, Jonas Kristiansen;
Keim, Pål Stabel;
Johannessen, Sondre Westby.
(2024)
Optimal Active Short-Circuit Operation of Permanent Magnet Synchronous Machines and Drives for Aerospace Applications.
Academic chapter/article/Conference paper
2023
-
Karekezi, Yannick Cyiza;
Zhang, Zhaoqiang;
Olsen, Pål Keim.
(2023)
Segmentation Effects in the Modular HVDC Offshore Wind Generator and its Impact on Losses.
Academic chapter/article/Conference paper
-
Verkroost, Lynn;
Ghinste, Alexander Vande;
Rocha, Lorrana Faria Da;
Kooning, Jeroen D. M. De;
Belie, Frederik De;
Sergeant, Peter.
(2023)
Dynamic multi-agent dc-bus reconfiguration in modular motor drives with a stacked polyphase bridge converter.
IET Electric Power Applications
Academic article
2022
-
Rocha, Lorrana Faria Da;
Faraasen, Hans Anders;
Vansompel, Hendrik;
Olsen, Pål Keim.
(2022)
Investigation of Power Electronics Converters and
Architecture for Modular HVDC Wind Generators.
Academic chapter/article/Conference paper
2021
-
Schjølberg, Ingrid;
Olsen, Pål Keim.
(2021)
Elektrifisering og digitalisering krever ny kunnskap.
Teknisk Ukeblad
Reader opinion piece
2020
-
Olsen, Pål Keim;
Mauseth, Frank.
(2020)
Internal Partial Discharges at High DC Voltage and the Effect of Superimposed AC Voltage.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
-
Olsen, Pål Keim;
Mauseth, Frank;
Ildstad, Erling.
(2020)
Internal Partial Discharges at
High DC Voltage and the Effect
of Superimposed AC Voltage.
NTNU Trondheim
NTNU Trondheim
Doctoral dissertation
-
Cascalló, Jaume Martí;
Mauseth, Frank;
Olsen, Pål Keim.
(2020)
Partial Discharge Testing and Prediction Modelling at High DC Voltage.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
2014
-
Gjerde, Sverre Skalleberg;
Olsen, Pål Keim;
Ljøkelsøy, Kjell;
Undeland, Tore Marvin.
(2014)
Control and fault handling in a modular series-connected converter for a transformerless 100 kv low-weight offshore wind turbine.
IEEE transactions on industry applications
Academic article
-
Olsen, Pål Keim;
Mauseth, Frank;
Ildstad, Erling.
(2014)
The effect of DC superimposed AC Voltage on Partial Discharges in Dielectric Bounded Cavities.
Academic chapter/article/Conference paper
2013
-
Olsen, Pål Keim;
Mauseth, Frank;
Ildstad, Erling.
(2013)
Modelling of Partial Discharges in Polymeric Insulation Exposed to Combined DC and AC Voltage.
Academic chapter/article/Conference paper
2012
-
Gjerde, Sverre Skalleberg;
Olsen, Pål Keim;
Undeland, Tore Marvin.
(2012)
A transformerless generator-converter concept making feasible a 100 kV low weight offshore wind turbine Part II - The converter.
Academic chapter/article/Conference paper
-
Olsen, Pål Keim;
Gjerde, Sverre Skalleberg;
Nilssen, Robert;
Hølto, Jorunn;
Hvidsten, Sverre.
(2012)
A Transformerless generator-converter concept making feasible a 100 kV light weight offshore wind turbine: Part I - The generator.
Academic chapter/article/Conference paper
2008
-
Mogstad, Anne Berit;
Cabrera, Maria Marta Molinas;
Olsen, Pål Keim;
Nilssen, Robert.
(2008)
A Power Conversion System for Offshore Wind Parks.
Academic chapter/article/Conference paper
Journal publications
-
Rocha, Lorrana Faria Da;
Verkroost, Lynn;
Vansompel, Hendrik;
Keim, Pål Stabel.
(2024)
Investigation of DC-bus control modes and impacts on energy yield for a modular HVDC wind drive train.
IET Renewable Power Generation
Academic article
-
Verkroost, Lynn;
Belie, Frederik De;
Rocha, Lorrana Faria Da;
Keim, Pål Stabel;
Sergeant, Peter;
Vansompel, Hendrik.
(2024)
Multi-Agent Control Scheme for Power Distribution in a Multi-Three-Phase Motor Drive Fed by a Stacked Polyphase Bridges Converter.
IEEE transactions on energy conversion
Academic article
-
Verkroost, Lynn;
Ghinste, Alexander Vande;
Rocha, Lorrana Faria Da;
Kooning, Jeroen D. M. De;
Belie, Frederik De;
Sergeant, Peter.
(2023)
Dynamic multi-agent dc-bus reconfiguration in modular motor drives with a stacked polyphase bridge converter.
IET Electric Power Applications
Academic article
-
Schjølberg, Ingrid;
Olsen, Pål Keim.
(2021)
Elektrifisering og digitalisering krever ny kunnskap.
Teknisk Ukeblad
Reader opinion piece
-
Gjerde, Sverre Skalleberg;
Olsen, Pål Keim;
Ljøkelsøy, Kjell;
Undeland, Tore Marvin.
(2014)
Control and fault handling in a modular series-connected converter for a transformerless 100 kv low-weight offshore wind turbine.
IEEE transactions on industry applications
Academic article
Part of book/report
-
Wang, Wei;
Nøland, Jonas Kristiansen;
Keim, Pål Stabel.
(2024)
Power Loss Analysis of Two-Level and Three-Level Converters under Active Short-Circuit Operating Conditions for Multi-Lane Electric Aviation Applications.
Academic chapter/article/Conference paper
-
Wang, Wei;
Nøland, Jonas Kristiansen;
Keim, Pål Stabel;
Johannessen, Sondre Westby.
(2024)
Optimal Active Short-Circuit Operation of Permanent Magnet Synchronous Machines and Drives for Aerospace Applications.
Academic chapter/article/Conference paper
-
Karekezi, Yannick Cyiza;
Zhang, Zhaoqiang;
Olsen, Pål Keim.
(2023)
Segmentation Effects in the Modular HVDC Offshore Wind Generator and its Impact on Losses.
Academic chapter/article/Conference paper
-
Rocha, Lorrana Faria Da;
Faraasen, Hans Anders;
Vansompel, Hendrik;
Olsen, Pål Keim.
(2022)
Investigation of Power Electronics Converters and
Architecture for Modular HVDC Wind Generators.
Academic chapter/article/Conference paper
-
Olsen, Pål Keim;
Mauseth, Frank;
Ildstad, Erling.
(2014)
The effect of DC superimposed AC Voltage on Partial Discharges in Dielectric Bounded Cavities.
Academic chapter/article/Conference paper
-
Olsen, Pål Keim;
Mauseth, Frank;
Ildstad, Erling.
(2013)
Modelling of Partial Discharges in Polymeric Insulation Exposed to Combined DC and AC Voltage.
Academic chapter/article/Conference paper
-
Gjerde, Sverre Skalleberg;
Olsen, Pål Keim;
Undeland, Tore Marvin.
(2012)
A transformerless generator-converter concept making feasible a 100 kV low weight offshore wind turbine Part II - The converter.
Academic chapter/article/Conference paper
-
Olsen, Pål Keim;
Gjerde, Sverre Skalleberg;
Nilssen, Robert;
Hølto, Jorunn;
Hvidsten, Sverre.
(2012)
A Transformerless generator-converter concept making feasible a 100 kV light weight offshore wind turbine: Part I - The generator.
Academic chapter/article/Conference paper
-
Mogstad, Anne Berit;
Cabrera, Maria Marta Molinas;
Olsen, Pål Keim;
Nilssen, Robert.
(2008)
A Power Conversion System for Offshore Wind Parks.
Academic chapter/article/Conference paper
Report
-
Olsen, Pål Keim;
Mauseth, Frank.
(2020)
Internal Partial Discharges at High DC Voltage and the Effect of Superimposed AC Voltage.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
-
Olsen, Pål Keim;
Mauseth, Frank;
Ildstad, Erling.
(2020)
Internal Partial Discharges at
High DC Voltage and the Effect
of Superimposed AC Voltage.
NTNU Trondheim
NTNU Trondheim
Doctoral dissertation
-
Cascalló, Jaume Martí;
Mauseth, Frank;
Olsen, Pål Keim.
(2020)
Partial Discharge Testing and Prediction Modelling at High DC Voltage.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
Teaching
Courses
- IELET2910 - Bachelor Thesis Electric Power Engineering
- TET4210 - Modelling and Analysis of Electric Machines
- TET4510 - Electrical Energy and Power Systems, Specialisation Project
- IELEG2910 - Bachelor Thesis Electric Power Engineering
- TET4545 - Electrical Machines and Electromagnetics, Specialisation Course
- ELET1001 - Electric circuits - introduction
- HAV6002 - Electric infrastructure and system integration
Outreach
2015
-
Academic lectureOlsen, Pål Keim; Velo, Ingrid Roen; Mauseth, Frank. (2015) Experimental Challenges when Measuring Partial Discharges under Combined DC and High Frequency AC Voltage. Nordic Insulation Symposium 2015 , København 2015-06-15 - 2015-06-17
2014
-
LectureOlsen, Pål Keim. (2014) Oral session A-5:The effect of DC superimposed AC Voltage on Partial Discharges in Dielectric Bounded Cavities. ICHVE 2014 2014-09-08 - 2014-09-11