南京理工大学学报（自然科学版）2026，Vol.50Issue(1)：40-50,11.DOI:10.14177/j.cnki.32-1397n.2026.50.01.005
基于高频脉振电压信号注入的IPMSM低速无位置传感器控制
Position sensorless control of IPMSM at low speeds based on high-frequency pulsating voltage signal injection
摘要
Abstract
Position sensorless control of interior permanent magnet synchronous motor(IPMSM)based on conventional back-electromotive force(back-EMF)observers often suffers from degraded estimation accuracy and poor stability at low speeds due to the diminishing back-EMF amplitude.To mitigate this limitation,this paper proposes an enhanced high-frequency(HF)pulsating voltage injection strategy integrated with a least mean square(LMS)adaptive filter.By injecting an HF pulsating voltage into the d-axis of the estimated rotor reference frame,the proposed method leverages the LMS adaptive algorithm to demodulate the HF current response,suppressing harmonic disturbances,enabling precise extraction of the rotor position and speed.Both simulation and experimental results verify that the proposed strategy achieves accurate rotor tracking within the low-speed region.Notably,the position estimation error is restricted to within 0.25 rad,with a dynamic response speed improvement of approximately 40%,demonstrating superior robustness against speed fluctuations.关键词
永磁同步电机/无位置传感器控制/高频脉振电压信号注入/低速Key words
permanent magnet synchronous motor/position sensorless control/high-frequency pulsating voltage signal injection/low-speed分类
信息技术与安全科学引用本文复制引用
秦亚茹,霍永力,杨贝宁,王明玉,朱曙光..基于高频脉振电压信号注入的IPMSM低速无位置传感器控制[J].南京理工大学学报（自然科学版）,2026,50(1):40-50,11.基金项目
国家自然科学基金青年基金(52302454) （52302454）
中央高校基本科研业务费专项资金(30925010537) （30925010537）
