1.School of Electrical and Information Engineering Jiangsu University Zhenjiang 212013 China; 2.Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle Zhenjiang 212013 China
Abstract：Linear permanent magnet vernier (LPMV) motor has the advantages like high efficiency,low cost,high thrust force.Therefore,it is suitable for application of rail traffic with a long stoke.However,position sensor installed along the track costs too much.In the paper,the mover position estimated method based on stator back EMF is researched to reach sensorless control.Estimated mover position is calculated by stator flux angle min using load angle.Estimated mover speed is estimated by a phase locked loop (PLL) with estimated mover position inputted.The simulation and experiment is carried out based on system of LPMV motor.The results show that there is a high accuracy of estimation when speed of the prototype in the range from 0 to 1.5 m/s,mover position estimation is in error within plus and minus 5°,mover speed estimation is in error within plus and minus 0.01 m/s.Simulation and experiment results verify the feasibility and practicality of the mover position estimated method based on stator back electromotive force (EMF).
矫帅,赵文祥,邱先群,张建. 基于改进式反电动势法的直线游标永磁电机无位置传感器控制[J]. 电工技术学报, 2016, 31(增刊2): 236-242.
Jiao Shuai,Zhao Wenxiang,Qiu Xianqun,Zhang Jian. Sensorless Control of Linear Permanent Magnet Vernier Motor Based on Improved Stator Back EMF. Transactions of China Electrotechnical Society, 2016, 31(增刊2): 236-242.
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2016, Vol. 31 
