摘  要：介绍了永磁同步直线电机的结构。根据矢量控制的特点和要求，提出了一种基于增量式位置传感器的初始寻相和电角度测量方法，并经试验加以验证。
关键词：初始寻相;电角度测定;矢量控制;永磁电机；同步电机；直线电机；实验

Abstract: Analyzed The interior structure of the permanent magnet synchronous linear motor.According to the requirement and characteristics of the vector control system,proposed a method of initial phase and electric angle measurement based on incremental position sensor.Experiments were carried out to verify the performance of the system.
Key Words: Initial phase;Electric angle measurement;Vector control;Permanent magnet motor；Synchronous motor；Linear motor；Experiment