Calculation and Temperature Field Analysis of Pure Electric Commercial Vehicles
Permanent magnet synchronous motor has a small volume and a high speed,and its long-term op-eration is easy to lead to significant temperature rise.In view of the problems of large thermal load and seri-ous loss of the drive motor of pure electric commercial vehicles,the 84kW permanent magnet synchronous motor was the research object to study the temperature field analysis and optimization of the motor.Firstly,the geometric model of drive motor was established and the motor loss under different working conditions was solved by theoretical calculation;secondly,the casing spiral channel,I-channel and peripheral channel of motor temperature field and flow field were designed,and the waterway structure scheme was optimized based on cooling efficiency,flow resistance and processing convenience.Finally,multi-objective optimiza-tion theory and finite element simulation calculation.The results show that the temperature of the optimized I-channel shell is decreased by 17.9％.
万方数据
维普
