基于高频信号注入的永磁同步电机转子位置估计

doi:10.12068/j.issn.1005-3026.2019.09.004

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (9): 1234-1239.DOI: 10.12068/j.issn.1005-3026.2019.09.004

基于高频信号注入的永磁同步电机转子位置估计

王大志，李汶浍，袁天清，周迎宾

(东北大学信息科学与工程学院，辽宁沈阳110819)

收稿日期:2018-10-15 修回日期:2018-10-15 出版日期:2019-09-15 发布日期:2019-09-17
通讯作者: 王大志
作者简介:王大志(1963-)，男，辽宁锦州人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金重点资助项目(61433004); 国家重点研发计划项目(2017YBF1300900).

Rotor Position Estimation of Permanent Magnet Synchronous Motor Based on High-Frequency Signal Injection

WANG Da-zhi， LI Wen-hui， YUAN Tian-qing， ZHOU Ying-bin

School of Information Science & Engineering， Northeastern University， Shenyang 110819， China.

Received:2018-10-15 Revised:2018-10-15 Online:2019-09-15 Published:2019-09-17
Contact: LI Wen-hui
About author:-
Supported by:
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摘要/Abstract

摘要： 为提升永磁同步电机无传感器控制技术在零/低速范围运行时的动态性能，提出一种改进的转子位置估计方法.首先，在α-β坐标系下建立永磁同步电机高频激励模型;其次，为提高转子位置估计性能，对基于外差法的转子位置估计方法进行分析，并提出基于补偿矩阵的转子位置估计方法;最后，在MATLAB/Simulink仿真环境下对比分析外差法与补偿矩阵两种方法的转子位置估计精度.仿真结果表明，所提出的方法不仅能获得较快的转子位置跟踪速度，而且能够保证较高的转子位置估计精度.

关键词: 高频信号注入, 永磁同步电机, 无传感器控制, 零/低速范围, 转子位置估计

Abstract: An improved rotor position estimation method is proposed to enhance the dynamic performance of the sensorless control technology of permanent magnet synchronous motor(PMSM)in zero/low speed range. Firstly， the high-frequency excitation model of PMSM is established in the α-β coordinate system. Secondly， the rotor position estimation method based on heterodyne method is analyzed， and the method based on compensation matrix is proposed to improve the rotor position estimation performance. Finally， the MATLAB/Simulink is utilized to compare and analyze the rotor position estimation accuracy of the two methods. The simulation results show that the proposed method can not only obtain faster rotor position tracking speed， but also ensure higher rotor position estimation accuracy.

Key words: high-frequency signal injection, permanent magnet synchronous motors(PMSM), sensorless control, zero/low speed range, rotor position estimation

中图分类号:

TM30

王大志，李汶浍，袁天清，周迎宾. 基于高频信号注入的永磁同步电机转子位置估计[J]. 东北大学学报:自然科学版, 2019, 40(9): 1234-1239.

WANG Da-zhi， LI Wen-hui， YUAN Tian-qing， ZHOU Ying-bin. Rotor Position Estimation of Permanent Magnet Synchronous Motor Based on High-Frequency Signal Injection[J]. Journal of Northeastern University Natural Science, 2019, 40(9): 1234-1239.

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基于高频信号注入的永磁同步电机转子位置估计

Rotor Position Estimation of Permanent Magnet Synchronous Motor Based on High-Frequency Signal Injection

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