摘要
无刷直流轮毂电机的调速性能将直接影响轮毂电机驱动电动汽车的行驶稳定性。针对电动汽车动、静态特性的要求,以电机转速响应迅速且稳定为控制目标,在MATLAB/Simulink中建立无刷直流电机控制系统整体仿真模型。通过转速外环模糊PI控制和电流内环滞环控制方法实现无刷直流电机双闭环控制,对比仿真分析传统PI控制和模糊PI控制策略对电机调速性能的影响,仿真结果表明,模糊PI控制能使电机转速响应迅速且稳定,从而改善电动汽车的动、静态性能。
Speed control performance of in-wheel brushless DC motor( BLDCM) affect electric vehicle riding stability directly. According to the requirements of the dynamic and static characteristics of the electric vehicle,regarding quick and stable speed response as control objective,the whole simulation model of the BLDCM control system was established in MATLAB/Simulink. Speed fuzzy PI control and current hysteresis control method were applied to achieve double closed-loop control of BLDCM,and the influence of traditional PI control and fuzzy PI control strategy on motor speed regulation was analyzed by simulation. The simulation results show that the fuzzy PI control can make the motor speed response quick and stable,improving the electric vehicles’ dynamic and static performance.
出处
《科技通报》
2018年第8期78-83,共6页
Bulletin of Science and Technology
基金
国家自然科学基金项目(51505345)
电动汽车动力系统设计与测试湖北省重点实验室基金项目(HBUASEV2015F005)
湖北省教育厅基金项目(Q20151105)
关键词
无刷直流轮毂电机
模糊PI控制
滞环控制
仿真
in-wheel brushless DC motor
fuzzy PI control
hysteresis control
simulation
