Analysis and Optimization of AC Loss of Flat Wire Motor for Electric Vehicle at High Speed Condition
To reduce high AC loss of flat wire motor under high speed conditions,improve the operation efficiency of the motor,an 8-pole and 48-slot flat wire permanent magnet synchronous motor was taken as the research object,a flat wire motor model was established,and the influence law of AC loss was analyzed.With key structural parameters as variables,this paper proposed a genetic algorithm optimization scheme based on response surface design.The simulation results indicate that the AC loss of the motor is reduced by about 6.8%under the high speed condition,and the motor efficiency under the whole working condition is improved,and the average proportion of the high efficiency interval is increased by about 7.8%.
Electric vehicleFlat wire motorAC lossHigh speed conditionResponse surfaceGenetic algorithm