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CHEN Zhao-rong, ZHANG Hui, ZHANG Qian-qian, YU Rui-wen, LI Wen-fei. Research of PMSM Sensorless Control System Based on EKF[J]. Journal of Mine Automation, 2010, 36(1): 47-51.
Citation: CHEN Zhao-rong, ZHANG Hui, ZHANG Qian-qian, YU Rui-wen, LI Wen-fei. Research of PMSM Sensorless Control System Based on EKF[J]. Journal of Mine Automation, 2010, 36(1): 47-51.
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Research of PMSM Sensorless Control System Based on EKF

  • 1.

    China Bluestar Lehigh Engineering Corp., Lianyungang 222004, China. 2.School of Information and Electrical Engineering of CUMT., Xuzhou 221008, China. 3.Jiangsu Research Center of Electric Drive and

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  • Mathematical model of permanent magent synchronous motor(PMSM) and its vector control principle in d-q coordinate were analyzed and a method of applying EKF in PMSM sensorless control system was proposed. In α-β and d-p coordinates, nonlinear equations of PMSM were linearized and its rotor position and speed were estimated realtimely by EKF algorithm, so as to satisfy demand of realtime control. The results of Matlab/Simulink simulation and dSPACE hardware platform test showed that the PMSM sensorless control system based on EKF has steady running, small overshoot and perfect dynamic and static performance.
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