一种新型电动车用宽调速永磁电机驱动系统

A Novel PM Motor Drive System for Electric Vehicles with Wide Speed Range

该文介绍了一种新型电动车用永磁电机宽调速驱动系统.在采用新型电机结构的基础上,基于标量算法的快速电流追踪控制满足了高性能的调速要求.在高速下,利用变压器电势来削弱电机旋转电势的概念,实现了高于基速的恒功率运行,扩展了电机的调速范围.

A novel PM motor drive system for electric vehicles with a widerange of speed is introduced in the paper. High performance speed control is obtained through a novel design of motor structure and a highspeed current hysteresis controller. In the highspeed region, permanent power operation above the base speed is realized by curbing the EMF through transformer electromotive force.