电动汽车用永磁同步电机超前角弱磁控制  

A Leading Angle Field Weakening Control Method for Permanent Magnet Synchronous Motor on Electric Vehicles

作　　者：罗德荣[1] 曾智波[1] 黄守道[1] 陈自强[1] 李建业[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2011年第3期40-44,共5页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(50907020);教育部高等学校博士学科点基金项目(200805321038)

摘　　要：提出了一种电动汽车用内置式永磁同步电机超前角弱磁控制方案,实现了高倍、平滑扩速和降低控制系统成本的目的.该控制方案以电机端电压对变频器直流母线电压的利用率为基础,通过构建一个新的电压指数外环,从而确定定子电流矢量角的偏移度,最终实现弱磁扩速的目的.该方案弱磁过渡平滑,且与电机参数无关,并能实现电动汽车用永磁同步电机的高倍弱磁扩速,不仅满足了电动汽车宽速度运行的要求,同时还降低了工业成本.仿真与实验结果表明了该控制方案的可行性和有效性.This paper presented a method of leading angle flux-weakening control for interior permanent magnet synchronous motor（IPMSM） on the electric vehicles,and achieved the purposes of high times,smooth and wide-speed operation and low cost of control systems.The control algorithm based on the utilization of inverter＇s DC bus voltage determines the deviation degree of the rotor synchronization rotation angle by constructing a new index loop of voltage and achieves the purpose of extending the operation speed range.The transition of flux-weakening is smooth,and the algorithm of leading angle flux-weakening control has nothing with parameters and realizes the high-time flux-weakening control of IPMSM.It not only meets the requirements of wide speed operation,but also reduces the cost of the whole system.The effectiveness of the proposed control scheme is verified by computer simulation and experimental results.

关 键 词：电动汽车 永磁同步电机 弱磁 新能源 

分 类 号：TM301.2[电气工程—电机]