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To reduce cost and improve efficiency, a novel design concept of a traction motor for electric vehicle based on a driving cycle is proposed. In comparison with conventional design method of electric motors, the proposed design concept considers the real load condition and highlights special requirements of electric vehicle. Based on the proposed approach, an interior permanent magnet traction motor...
This paper investigates thermal analysis of water cooled surface mount permanent magnet synchronous motor by two approaches. One is a lumped parameter thermal model which enables quickly to predict temperature rise in the electric machine. The other is 3D finite element method which can precisely calculate the temperature considering the effect of end-winding and housing. In addition, the cooling...
A lumped parameter thermal analysis of permanent magnet motor by considering real driving duty cycle is presented. As driving motors of electric vehicle, permanent magnet motors exhibit high efficiency and high power density. However, they are susceptible to suffer irreversible demagnetization and insulation failure of coils under severe thermal condition. Therefore, it is essential to accurately...
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