Electromagnetic Force Analysis of Permanent Magnet Synchronous Motor Driven by PWM Inverter

Katsuhiro Hoshino
Powertrain Technology Development Department, Advanced Mobility Development Center, Technology Development Div., Hitachi Automotive Systems, Ltd.


Vibration of traction motor is defined by electromagnetic force which is acting as vibration source and vibration transmission structure of the motor.
In automotive applications, the motor generates electromagnetic force including high frequency by a battery driven inverter.
Therefore, we introduce simulation methods to calculate the electromagnetic force by applying motor behavior model. This motor behavior model connects system analysis results including the inverter and battery model.

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