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Niklas Magnusson

Senior Research Scientist

Niklas Magnusson

Senior Research Scientist

Niklas Magnusson
Phone: 907 18 577
Email:
Department: Electric Power Technology
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/1902944/

Leakage flux penetrating laminated iron cores in power transformers and large generators induces eddy current and local loss. Due to the strong magnetic anisotropy of the lamination structure, the penetrating flux tends to saturate the lamination in its plane, even when the incident stray flux...

Authors Wei Wang Arne Nysveen Niklas Magnusson
Year 2021
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1891848/

Computation of iron losses in transformers requires significant numerical efforts, particularly under magnetic saturation when the magnetic non-linearity needs to be considered. This study proposes a Fourier method to calculate the magnetic flux density used for the iron loss evaluation in...

Authors Wei Wang Arne Nysveen Niklas Magnusson Robert Nilssen
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1829987/

Conventional standardized power loss measurements for electric steels are performed at flux densities with a single sinusoidal and unidirectional excitation. However, the flux inside electrical steel laminations can deviate significantly from the standard condition, and the loss is sensitive to such...

Authors Wei Wang Arne Nysveen Niklas Magnusson
Year 2020
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1812951/

The internal pressures in the insulation of two 5-m long pieces of a state-of-the art mass-impregnated non-draining subsea cable have been measured under load current cycling at ambient temperatures ranging from 3 to 37 °C. Thermal expansion of the mass gives in some cases rather extreme internal...

Publication
https://www.sintef.no/en/publications/publication/1840599/

Tests have been performed to evaluate a draft cable screen connection test procedure. The tested objects were cable screen connections for cables with both an aluminium laminate and copper strands in the screen. The test revealed the importance of using good equalizers to obtain usable results...

Year 2019
Type Report
Publication
https://www.sintef.no/en/publications/publication/1702275/

Partial discharge measurements have been used for studying shrinkage voids in the insulation of mass-impregnated high voltage DC subsea power cables. Three 4.5-m long cable samples were subjected to ac partial discharge measurements at different ambient temperatures, both under isothermal...

Year 2019
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1573795/

A method for comparing the Levelized Cost of Energy (LCoE) of different superconducting drive trains is introduced. The properties of a 10 MW MgB$_{2}$ superconducting direct drive generator are presented in terms weight scaled to a turbine with a rotor diameter up of...

Authors Asger B Abrahamsen Dong Liu Niklas Magnusson Arwyn Sean Thomas Ziad Azar Ewoud Stehouwer Ben Hendriks Gerrit Jan Van Zinderen Fujin Deng Zhe Chen Dennis Karwatzki Axel Mertens Max Alexander Parker Stephen Jon Finney Henk Polinder
Year 2018
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1573249/

Field windings made of MgB2 wires or tapes are considered for their potential to reduce volume, weight and cost of large offshore wind turbine generators. To gain experience of how to use this relatively new material in full-scale generators, tests of different winding methodologies and techniques...

Authors Niklas Magnusson Jan Christian Eliassen Asger Bech Abrahamsen Svein Magne Hellesø Magne E Runde Arne Nysveen Lars-Erik Moslått Jarle Bjerkli Patrick King
Year 2018
Type Academic article