直线同步电动机直接牵引力控制及无速度传感器运行研究

Direct Thrust Control for Linear Synchronous Motors and Sensorless Operation

直线电动机在直线传动领域得到越来越广泛的应用。本文以常见的直线同步电动机为例,给出了其基本结构及数学模型,然后阐述了直接牵引力控制的原理及实现时应注意的细节问题,最后讨论了无速度传感器运行的问题。仿真实验表明,直接牵引力控制具有响应迅速,实现简单的特点;基于功角计算的速度观测算法在高速段具有很好的效果。

Linear motor has been widely used in the occasions of electrical drive. The basic structure and the mathematical model of the linear synchronous motor are presented in the paper. The theory of direct thrust control and some details that should be taken into account are also presented. And the problems about sensorless are also discussed.