Electromagnetic Thermal Analysis for Short-Term High-Overload Permanent Magnet Synchronous Motor
Liu Yuxi1, 2, Li Liyi2, Cao Jiwei2, Gao Qinhe1, Sun Zhaoxu2
1. Military Key Laboratory for Armament Launch Theory ＆ Technology Rocket Forces Engineering University Xi’ an 710025 China; 2. School of Electrical Engineering and Automation Harbin Institute of Technology Harbin 150001 China
Abstract：Short-term high-overload permanent magnet synchronous motors with high overload ratio, high dynamic response, and high reliability are widely used in aerospace and other applications. To improve the ability to the maximum torque output of the motor, the effect of magnetic and electric load on the motor of the overload capacity, and winding turns on the output of the extreme power at a constant speed were researched. The influence of the overload times on the loss distribution law of the motor was analyzed. The temperature rises of long-term work at room temperature and high temperature, short-term cycle work and short-term high overload conditions at room temperature, were obtained. The temperature rise of the heat capacity of housing was analyzed. Equipped with a motor experiment platform in different environments, the changes of the temperature rise at different ambient temperatures and at different working conditions was verified and current overload times at extreme torque conditions was tested. As the experimental results are consistent with the simulation, the theory is correct that can be theoretical reference for the short-time high overload motor.
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2019, Vol. 34 
