永磁同步电机无传感器控制研究综述

A Review of Sensorless Control for Permanent Magnet Synchronous Motors

永磁同步电机(permanent magnet synchronous motor,PMSM)的无传感器控制方法具有多种优点。首先,回顾了无传感器控制的不同方法,分别对高频信号注入法和基波激励法中的各种方法进行归纳和论述。然后,对位置和速度的提取方法进行了总结,并且对各种速度闭环控制方法进行归类分析。之后,对其他无传感器控制方法的优缺点进行了评述,对仍需要解决的问题进行了讨论。最后,展望了PMSM无传感器控制技术的未来研究趋势。

The sensorless control methods of permanent magnet synchronous motor(PMSM)have many advantages.Firstly,sensorless control methods are reviewed and various methods of high-frequency signal injection and fundamental wave excitation are summarized and discussed,respectively.Secondly,the methods for extracting position and speed are summarized and different methods for controlling the speed loop are categorized and discussed.Thirdly,the advantages and disadvantages of other sensorless control methods are reviewed,and the problems that still need to be solved are discussed.Finally,the future research trend of the sensorless control technology for PMSM is forecasted.