基于余弦电流函数算法转子初始位置检测研究

doi:1004-7018-46-6-1-4

微特电机 ›› 2018, Vol. 46 ›› Issue (6): 1-4.doi: 1004-7018-46-6-1-4

• 研究论文 • 下一篇

基于余弦电流函数算法转子初始位置检测研究

李新华,朱厚钰,田祥,王晓光

湖北工业大学,武汉 430068

收稿日期:2017-07-21 出版日期:2018-06-20 发布日期:2018-07-03

Rotor Initial Position Estimation Based on Cosine Current Function Algorithm

Xin-hua LI,Hou-yu ZHU,Xiang TIAN,Xiao-guang WANG

Hubei University of Technology,Wuhan 430068,China

Received:2017-07-21 Online:2018-06-20 Published:2018-07-03

摘要/Abstract

摘要：

研究铁氧体电机转子初始位置检测的一种新算法。通过将高频旋转电压信号注入铁氧体伺服电机,提取三相高频电流包络线的幅值,将其近似为余弦函数来计算转子初始位置角。实验表明,该方法在不降低转子初始位置精度的前提下减少了原算法的判断次数,对于凸极比较小的永磁同步电机还具有较高的检测精度。

关键词: 铁氧体永磁同步电机, 初始位置检测, 余弦电流函数, 磁极判断, 检测误差

Abstract:

A new estimate algorithm of the initial rotor position of interior ferrite permanent magnet synchronous motor was studied. The high frequency voltage signal was injected into the α-β reference, then the amplitude of current’s envelope curve was extracted to estimate the initial rotor position, but the algorithm of it was changed. The cosine curve was seen as three-phase high frequency current to calculate the result. This method decreased the number of original method’s compared times, and didn’t reduce the precision of the initial rotor position. The results show that the method has higher detecting precision in the small salient ratio permanent magnet synchronous motor.

Key words: ferrite permanent magnet synchronous motor, rotor initial position estimation, cosine current function, magnetic pole detection, detection error

中图分类号:

TM351

李新华,朱厚钰,田祥,王晓光. 基于余弦电流函数算法转子初始位置检测研究[J]. 微特电机, 2018, 46(6): 1-4.

Xin-hua LI,Hou-yu ZHU,Xiang TIAN,Xiao-guang WANG. Rotor Initial Position Estimation Based on Cosine Current Function Algorithm[J]. Small & Special Electrical Machines, 2018, 46(6): 1-4.

参考文献

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基于余弦电流函数算法转子初始位置检测研究

Rotor Initial Position Estimation Based on Cosine Current Function Algorithm

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