EPS系统中基于磁阻位置传感器的永磁同步电机控制研究

Research of control based on PMSM with magnetoresistive rotor position sensor in EPS

为了提高EPS系统中转向助力手感,采用转矩输出特性更好的永磁同步电机作为EPS系统的助力电机,采用矢量控制方法控制永磁同步电机转矩的过程中,需实时采集电机转子位置信息,磁阻位置传感器具有高精度、低功率、低成本等优点,文章针对转子位置传感器为磁阻传感器的永磁同步电机的控制进行了研究,包括硬件电路及软件程序,并进行了电机台架试验。

Permanent Magnet Synchronous Motor（PMSM） which has better Torque output characteristic is used in Electric power steering system （EPS） in order to get better Power-assisted effect. Rotor position must be got when PMSM is controlled with Field Oriented Control （FOC） method. Magnetoresistive position sensor has the advantage of high accuracy , low cost and low power . This dissertation has a research on the control of PMSM with Magnetoresistive position sensor , motor bench test is taken at the same time.