摘  要：永磁无刷直流电机具有高效、高功率密度以及良好的调速性能，正逐渐成为电动汽车的首选电机之一。首先利用Matlab软件中的PSB建模方法建立无刷直流电机系统的仿真模型；然后，分别在空载和负载运行状态下对电机系统进行仿真；得出相绕组电流、电磁转矩等波形；最后将仿真结果与实验数据进行比较。结果表明系统仿真模型及仿真结果正确，为系统优化奠定基础。
关键词：混合动力汽车；无刷直流电机；仿真；起动转矩；实验

Abstract:Because of their high efficiency,high power density and good speed regulation performace,the permanent magnet brushless DC motor(BLDCM)has become one of the best choices for hybrid electric vehicle(HEV)drives.In this paper,the drive systems of BLDCM for HEV are studied.First,the model of BLDCM drive system is estabilished using the PSB/Matlab.Then,BLDCM drive system is simulated with no load and load.Finally,the experiment results and simulation results are compared.It is showed that the model developed and the simulation results are correct,and these are very important and useful for the optimization of drive system.
Key Words: Hybrid electric vehicle；Brushless DC motor；Simulation；Starting torque；Experiment