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基于高频注入法的永磁同步电动机转子初始位置检测研究_贾洪平.pdf

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27 卷 15 期 中 国 电 机 工 程 学 报 Vol.25 No.15 May 2007 2007 年5 月 Proceedings of the CSEE 2007 Chin.Soc.for Elec.Eng. 文章编号:0258-8013 (2007) 15-0015-06 中图分类号:TM301 文献标识码:A 学科分类号:47040 基于高频注入法的永磁同步电动机 转子初始位置检测研究 1 2 贾洪平 ,贺益康 ( 1. 江苏大学电气信息工程学院,江苏省 镇江市212013; 2. 浙江大学电气工程学院,浙江省 杭州市310027 ) Study on Inspection of the Initial Rotor Position of a PMSM Based on High-frequency Signal Injection 1 2 JIA Hong-ping ,HE Yi-kang ( 1. School of Electrical and Information Engineering,Jiangsu University, Zhenji ang 212013, Jiangsu Province, China; 2. College of Electrical Engineering,Zheji ang University, Hangzhou 310027, Zheji ang Province, China) ABSTRACT: The estimation accuracy of the initial rotor 0 引言 position for a permanent-magnet synchronous motor(PMSM) [1-4] PMSM 的高性能控制如矢量控制 和直接转 directly determines whether the motor could be started-up successfully or not, the operation behavior would be better or 矩控制[5-9], 都需要准确知道转子的初始位置。如果 worse and the high performance control strategy could be 转子初始位置估计误差较大,会导致无法正确选择 realized or not. An initial rotor position inspection scheme was 合适的电压空间矢量使之顺利起动。对于直接转矩 proposed, which utilizes the magnetic saturation difference
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