Losses and Parasitic Torques in Electric Motors Subjected to PWM Waveforms
- 1 January 1979
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. IA-15 (1) , 47-53
- https://doi.org/10.1109/tia.1979.4503611
Abstract
Some aspects of the theoretical performance of an electric motor, supplied by an unfiltered pulsewidth modulated (PWM) inverter are studied. The stator copper losses and the winding insulation lifetime are emphasized. An induction motor system is assumed and the creation of low-frequency parasitic torques are described. Their relative importance are estimated. It is shown that PWM supplies may have a negative impact on the motor performance and lifetime and can make a modification of the motor design more desirable than in the case where a ``simpler'' inverter system is used.Keywords
This publication has 2 references indexed in Scilit:
- Design adaptation of inverter-supplied induction motorsIEE Journal on Electric Power Applications, 1978
- Frequency response of induction motors under forced oscillationsProceedings of the Institution of Electrical Engineers, 1970