Reducing the Losses of Electrical Machines under Torsional Vibration

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Abstract

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.

Details

Original languageEnglish
Title of host publicationProceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018
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
https://www.icem.cc/2018/

Conference

ConferenceInternational Conference on Electrical Machines
Abbreviated titleICEM
CountryGreece
CityAlexandroupoli
Period03/09/201806/09/2018
Internet address

    Research areas

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

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