电子科技 ›› 2021, Vol. 34 ›› Issue (4): 24-33.doi: 10.16180/j.cnki.issn1007-7820.2021.04.005

• • 上一篇    下一篇

永磁同步电机转子初始位置检测技术研究进展

李抑非,蒋全   

  1. 上海理工大学 机械工程学院,上海 200093
  • 收稿日期:2020-01-09 出版日期:2021-04-15 发布日期:2021-04-16
  • 作者简介:李抑非(1996-),男,硕士研究生。研究方向:电机控制。|蒋全(1963-),男,教授。研究方向:电机控制、电力电子与电力传动等。
  • 基金资助:
    国家重点研发计划(2018YFB0104603)

Research Development of Initial Rotor Position Detection of Permanent Magnet Synchronous Motors

LI Yifei,JIANG Quan   

  1. School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China
  • Received:2020-01-09 Online:2021-04-15 Published:2021-04-16
  • Supported by:
    National Important Research and Development Program(2018YFB0104603)

摘要:

永磁同步电机凭借效率高、转动惯量小等优势在电机控制领域得到越来越广泛的应用。高性能驱动控制领域要求有可靠和快捷的电机启动过程,因此转子的速度位置信息必不可少。永磁同步电机转子初始位置估算的精确性将直接决定电机能否起动以及电机控制性能的好坏。位置传感器体积大,成本高,对环境敏感,限制了永磁同步电机的应用范围,因此无位置传感器技术逐渐成为研究热点。文中将针对无位置传感器永磁同步电机的转子初始位置检测方法进行论述,分别介绍基于电机自身的磁路结构凸极效应和基于定子铁心的非线性饱和特性的转子位置检测方法以及具体实施方案,并对永磁同步电机的初始位置检测方法进行了总结和展望。

关键词: 永磁同步电机, 高性能控制, 无传感器, 快速起动, 转子初始位置检测, 磁路结构凸极效应, 定子铁心非线性饱和特性

Abstract:

Permanent magnet synchronous motors are widely used in the field of motor drives because of their high efficiency and small moment of inertia. In the field of high-performance drive control, there is a high demand of reliable and fast startup of the motor, so the speed and position information of the rotor is essential. The accuracy of the initial position estimation of the permanent magnet synchronous motor will directly determine whether the motor can be started and the performance of the motor control. Position sensors are bulky, costly, and sensitive to the environment, which limits the application range of permanent magnet synchronous motors. Sensorless technology has gradually become a research hotspot. In this study, the detection methods of initial rotor position of permanent magnet synchronous motor are discussed. The study respectively introduces the rotor position detection method based on the salient pole effect of the magnetic circuit structure of the motor or the non-linear saturation characteristic of the stator core and the specific implementation scheme. Finally, the initial position detection methods of permanent magnet synchronous motor are summarized and predicted.

Key words: permanent magnet synchronous motor, high performance control, sensorless, fast startup, initial rotor position detection, magnetic circuit structure salient pole effect, non-linear saturation characteristic of the stator core

中图分类号: 

  • TP273