电气传动2019，Vol.49Issue(6)：3-7,5.DOI:10.19457/j.1001-2095.dqcd18611
基于SOGI-PLL的永磁同步电机转子位置估计方法
Rotor Position Estimation Method for Permanent Magnet Synchronous Motor Based on SOGI-PLL
摘要
Abstract
The key to the sensorless control of permanent magnet synchronous motor based on sliding mode observer is to obtain the back electromotive force(EMF)signal. The system has buffeting owing to the discontinuity of sliding control,meanwhile elimination of high frequency interference by low pass filter can lead to phase lag,which requires a certain phase compensation. Combining sliding mode observer(SMO)with phase-locked loop(PLL),the accurate rotor position could be got quickly. Aiming at solving the problem of the measuring speed with high frequency noise filter,second-order generalized integrator(SOGI)for filtering back EMF was introduced,appropriate frequency rate was selected to eliminate the phase delay. The experimental result shows that PMSM sliding mode control based on SOGI-PLL can effectively improve the dynamic performance and steady state accuracy of the system compared with traditional methods.关键词
永磁同步电机/滑模控制/锁相环/二阶广义积分器Key words
permanent magnet synchronous motor /sliding mode control /phase-locked loop /second-order generalized integrator分类
信息技术与安全科学引用本文复制引用
杜昭平,景晖,魏鹏英,魏海峰,陆国强..基于SOGI-PLL的永磁同步电机转子位置估计方法[J].电气传动,2019,49(6):3-7,5.基金项目
国家自然科学基金项目(61304249,61374063) （61304249,61374063）
江苏省自然科学基金项目(BK20161361) （BK20161361）
