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  

Research on Speed Sensorless Control of Long Stator Linear Synchronous Motor Based on EEMF

作　　者：张波[1] 葛琼璇[1] 刘金鑫 王晓新[1] 李耀华[1] 

机构地区：[1]中国科学院电工研究所电力电子与电气驱动重点实验室,北京100190 [2]北京电力经济技术研究院,北京100055

出　　处：《电工技术学报》2017年第23期91-99,共9页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划项目资助(2016YFB1200602-20)

摘　　要：针对长定子直线同步电机高速运行时,机械传感器无法准确地获得转子位置和速度信号的问题,研究了一种适合在长定子直线同步电机中应用的扩展反电动势法无速度传感器控制策略。基于长定子直线同步电机的数学模型,分析了扩展反电动势法用于长定子直线同步电机无速度传感器控制的鲁棒性。仿真和实验结果证明了基于锁相环的扩展反电动势法无速度传感器控制能够实现高速时电机的无速度传感器闭环控制,并且此方法对电机参数变化具有较强的鲁棒性。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.

关 键 词：直线同步电机 无速度传感器控制 扩展反电动势 磁悬浮列车 鲁棒性 

分 类 号：TM359.4[电气工程—电机]