Abstract
Electric vehicle (EV) motor and common traction motor are operation in different states, the insulation aging model based fixed working conditions are no longer applicable. The secondary development of motor system is carried in ADVISOR to get a new motor thermal model with which to analysis the lifetime of winding insulation. In addition, SIMULINK model is established to decouple motor currents in ADVISOR. ANSYS is carried to simulate the motor temperature rise using the obtained decouple currents, two results of models are in good agreement which verifies the validity of the redevelopment thermal model. Combined with the electric ageing model of winding insulation, the electro-thermal aging model in the EV motor is proposed based actual operation states, and insulation lifetime is calculated which provides theory basis for the analysis of electro-thermal aging model in EV motors.
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