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

发布时间：2018-11-15 11:13

【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。
[Abstract]:In order to solve the problem of high-speed operation of the long-stator linear synchronous motor, the problem of the rotor position and speed signal can not be accurately obtained by the mechanical sensor, and the control strategy of the extended back-EMF method suitable for the long-stator linear synchronous motor is studied. Based on the mathematical model of long-stator linear synchronous motor, the robustness of the extended back-EMF method for sensorless control of long-stator linear synchronous motor is analyzed. The simulation and experimental results show that the non-speed sensor control based on the extended back-EMF method of the phase-locked loop can realize the closed-loop control of the speed-free sensor of the motor at high speed, and the method has strong robustness to the change of the parameters of the motor.
【作者单位】： 中国科学院电工研究所电力电子与电气驱动重点实验室;北京电力经济技术研究院;
【基金】：国家重点研发计划项目资助(2016YFB1200602-20)
【分类号】：TM341
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本文编号：2333155