带相位补偿的PMSM脉振高频信号注入转子位置估计方法  

A Rotor Position Estimation Method for PMSM With Phase Compensation Based on High-frequency Pulsating Signal Injection

作　　者：张一诺 张兴华 ZHANG Yinuo;ZHANG Xinghua(College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China)

机构地区：[1]南京工业大学电气工程与控制科学学院,南京211816

出　　处：《微电机》2022年第3期69-74,共6页Micromotors

基　　金：江苏省自然科学基金(BK20161549);国家自然科学基金(51477073)。

摘　　要：本文针对在零低速区域内表贴式永磁同步电机的高频信号注入位置估计问题,分析了由带通滤波器和零阶保持器引起的相位偏移对位置估计精度的影响,提出一种带相位补偿的永磁同步电机脉振高频信号注入位置估计方法。该方法采用一种考虑相位补偿的解调函数,有效地消除带通滤波器和零阶保持器造成的位置估计误差。实验结果表明,在零低速范围内,带相位补偿的脉振高频信号注入法可精确地估计转子位置和转速。In this paper,the influence of phase shift caused by band-pass filter(BPF)and zero-order holder on position estimation accuracy was analyzed for the position estimation problem of high-frequency(HF)signal injection of SPMSM at low or zero speed,and a rotor position estimation method with phase compensation for SPMSM based on HF pulsating signal injection was proposed.The demodulation function considering the phase shift was adopted,which effectively eliminated the position estimation error caused by the BPF and zero-order holder.The experimental results show that this method can realize rotor position estimation accurately of SPMSM in the zero or low speed.

关 键 词：永磁同步电机 相位偏移 带通滤波器 零阶保持器 脉振高频信号注入 

分 类 号：TM351[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]