摘要
无传感器控制技术有利于改善永磁同步电机驱动系统的可靠性,降低系统成本,已经成为交流电机传动领域的一项热门及前沿技术。高频注入法利用电机的凸极特性估计转子位置,不依赖电机反电动势模型,非常适合永磁同步电机零速及低速运行。针对高频电压信号注入法进行调研和整理归纳,并将这些方法总结为传统的高频正弦波注入法、改进的高频正弦波注入法和高频非正弦波注入法三类。首先,分别介绍每类方法中的典型实施方案,并指出各个方案的优缺点;其次,针对三类方法的异同点进行分析比较;最后,对基于高频信号注入的永磁同步电机无传感器控制技术的发展趋势进行展望。
Sensorless control technology is applied to improve the reliability of permanent magnet synchronous motor（PMSM） drive system and reduce system cost, which has become a hot topic and cutting-edge technology. The high-frequency signal injection method utilizes the motor saliency to estimate the rotor position. It is independent on the back electromotive force, and is very suitable for zero and low speed operation of PMSM drives. In this paper, the high-frequency voltage signal injection methods are investigated and summarized, which can be classified into three catalogues, i.e., conventional high-frequency sinusoidal injection method, improved high-frequency sinusoidal injection method and high-frequency non-sinusoidal injection method. The typical implementation scheme of each method is introduced, meanwhile the advantages and disadvantages of the scheme are pointed out. Then, the similarities and differences of these three kinds of methods are analyzed and compared. Finally, the development trend of the sensorless control technology of PMSM drives based on high-frequency signal injection is prospected.
作者
李浩源
张兴
杨淑英
李二磊
Li Haoyuan , Zhang Xing , Yang Shuying, Li Erlei(College of Electrical Engineering and Automation Hefei University of Technology Hefei 230009 Chin)
出处
《电工技术学报》
EI
CSCD
北大核心
2018年第12期2653-2664,共12页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(51677049)
关键词
永磁同步电机
无传感器控制技术
高频注入法
零速及低速运行
凸极特性
Permanent magnet synchronous motor
sensorless control technology
high-frequency injection method
zero and low speed operation
motor saliency
作者简介
李浩源 男,1990年生,博士研究生,研究方向为电动汽车用永磁同步电机驱动系统分析及控制.E-mail：lihaoyuan1990321@163.com;张兴 男,1963年生,教授,博士生导师,研究方向为大功率变流器及大型光伏并网发电技术.E-mail：honglf@ustc.edu.cn（通信作者）
