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

被引：0
|
作者：
Wang, Da-Zhi [1 ]
Li, Wen-Hui [1 ]
Yuan, Tian-Qing [1 ]
Zhou, Ying-Bin [1 ]
机构：
[1] School of Information Science & Engineering, Northeastern University, Shenyang,110819, China
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2019年 / 40卷 / 09期
关键词：
Permanent magnets - Synchronous motors - Frequency estimation - MATLAB;
D O I：
10.12068/j.issn.1005-3026.2019.09.004
中图分类号：
学科分类号：
摘要：
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. © 2019, Editorial Department of Journal of Northeastern University. All right reserved.
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收藏
页码：1234 / 1239
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