Impact of inverter harmonics on the winding losses of a PMSM

Konferenz: PCIM Europe 2019 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
07.05.2019 - 09.05.2019 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2019

Seiten: 5Sprache: EnglischTyp: PDF

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Wassmer, Marco (FHNW - University of Applied Sciences Northwestern Switzerland, Switzerland)

Voltage harmonics on the AC terminals of machines can cause additional losses. For an interior permanent magnet synchronous machine (IPMSM) with a high saliency ratio, the losses due to eddy currents were determined with FEMM. By using the ‘frozen permeability’ and the sliding air gap method, the armature losses were calculated. The losses due to current displacement from the rotor-field in the conductors were found to be small, almost negligible compared to conduction losses. The modulation harmonics were found to have a more substantial impact with 2.3% of the rated power.