电工技术学报2018，Vol.33Issue(12)：2703-2712,10.DOI:10.19595/j.cnki.1000-6753.tces.180483
三级式同步电机低速阶段无位置传感器起动控制高频信号注入法的对比
Comparative Investigation on Sensorless Control of Three-Stage Synchronous Motor Based on High-Frequency Injection Method at Low Speed
摘要
Abstract
Aiming at the problem of starting torque fluctuation, difficulty in response information extraction and susceptibility to disturbance caused by directly injecting high-frequency signals into the main generator during position sensorless start control of aerospace three-stage synchronous motors, a novel method of indirect high-frequency signal injection through the main exciter of the three-stage synchronous motor is proposed. The method using sixth harmonics generated by three-phase AC control of main exciter as the indirect injected high frequency signal is analyzed and compared with main exciter stator side high frequency signal injection method from the aspects of frequency characteristics of the injected high frequency and rotor position detection accuracy. Besides, the method of initial position detection through the establishment of three-stage synchronous motors excitation current. Good position tracking accuracy of the two high-frequency signal injection method in the low-speed start-up stage is verified by the experimental results. It is easier to realize the three-phase AC excitation and using the generated sixth harmonic as indirect high-frequency signal injection of the main exciter, and the rotor position angle estimation accuracy is better.关键词
三级式同步电机/无位置传感器控制/低速运行/间接高频注入法Key words
Three-stage synchronous motor (TSSM)/sensorless control/low speed condition/indirect high frequency injection分类
信息技术与安全科学引用本文复制引用
薛哗,魏佳丹,周波..三级式同步电机低速阶段无位置传感器起动控制高频信号注入法的对比[J].电工技术学报,2018,33(12):2703-2712,10.基金项目
中央高校基本业务费专项资金(XCA17003-01)和航空预研基金(403050202)资助项目. （XCA17003-01）
