Research on Speed Sensorless Control of Long Stator Linear Synchronous Motor Based on EEMF
Zhang Bo1, Ge Qiongxuan1, Liu Jinxin2, Wang Xiaoxin, Li Yaohua1
1. Key Laboratory of Power Electronics and Electric Drive Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China; 2. Beijing Electric Power Economic Research Institute Beijing 100055 China
Abstract：Motion control of synchronous motors requires accurate position and velocity signalsto realize field orientation.When long stator linear synchronous motor runs at high speed, the position and velocity signalsis hard to be obtained by mechanical sensor.To solve this problem, a speed sensorless control method based on extended electromotive force (EEMF) is studied forlong stator linear synchronous motor. With the mathematical model of long stator linear synchronous motor, the robustness of speed sensorless control methodbased on EEMFisanalyzed. Simulation and experimental results show that the speedsensorless of EEMF with phase-lock loop (PLL) achieve closed-loop control for the long stator linear synchronous motor at high speed, and this method is robustto the motorparameters.
张波, 葛琼璇, 刘金鑫, 王晓新, 李耀华. 基于扩展反电动势法的长定子直线同步电机无速度传感器控制研究[J]. 电工技术学报, 2017, 32(23): 91-99.
Zhang Bo, Ge Qiongxuan, Liu Jinxin, Wang Xiaoxin, Li Yaohua. Research on Speed Sensorless Control of Long Stator Linear Synchronous Motor Based on EEMF. Transactions of China Electrotechnical Society, 2017, 32(23): 91-99.
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2017, Vol. 32 
