Reducing the Losses of Electrical Machines under Torsional Vibration

Antero Arkkio, Eemeli Mölsä, Timo P. Holopainen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)
167 Downloads (Pure)


Electric drivetrains have an almost rigid-body torsional vibration mode at a low natural frequency. If a torsional excitation occurs close to this frequency, the vibration amplitude may grow large, and the losses of the electrical machine may significantly increase. The possibilities to reduce or eliminate these additional losses are studied. When the machine is connected directly to the grid, the possibilities for vibration control mainly come from mechanical solutions. If the machine is fed from a frequency converter, there are several potential ways to suppress the additional losses. The torsional vibration control of electric drivetrains is studied from loss minimization point of view. This is the novelty of the paper.

Original languageEnglish
Title of host publicationProceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018
Number of pages7
ISBN (Electronic)9781538624777
Publication statusPublished - 24 Oct 2018
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Electrical Machines - Ramada Plaza Thraki, Alexandroupoli, Greece
Duration: 3 Sep 20186 Sep 2018
Conference number: 23


ConferenceInternational Conference on Electrical Machines
Abbreviated titleICEM
Internet address


  • Electrical machines
  • Electromagnetic losses
  • Finite-element analysis
  • Torsional vibrations


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