电工技术学报2012，Vol.27Issue(7)：139-145,7.
基于脉振高频电流注入SPMSM低速无位置传感器控制
Sensorless Control of SPMSM Based on High Frequency Current Signal Injection in the Direct Axis at Low and Zero Speed
摘要
Abstract
A novel sensorless control method of SPMSM based on high frequency （HF） current signal injection is proposed in this paper. A HF sinusoidal current signal is superimposed into the estimated d-axis, and the rotor position can be demodulated after q-axis voltage is regulated, which is relative to error angle. Ultimately sensorless control can be achieved. Theoretical analysis, simulation and experiment validation are carried out. The results indicate that the rotor position and speed can be obtained exactly at low and zero speed. The approach ensures good dynamic and static performance. Compared to the pulsating high frequency voltage signal injection method, the proposed method in this paper is simpler in structure and more stable.关键词
永磁同步电动机/无位置传感器/脉振高频电流信号/低速Key words
PMSM/sensorless control/high frequency current signal injection/low speed分类
信息技术与安全科学引用本文复制引用
刘颖,周波,冯瑛,赵承亮..基于脉振高频电流注入SPMSM低速无位置传感器控制[J].电工技术学报,2012,27(7):139-145,7.基金项目
江苏省创新学者攀登计划资助项目 （）
