线性电动机是指驱动轨道交通车辆的一种新一代电动机。其工作原理与传统的旋转电动机相同，只是在结构上相当于将定子与转子剖开而展平(见下图），初级绕组与次级绕组分别安装在车辆与导轨上,利用所产生的移动磁场推动车辆作直线运动。
电动机驱动器的控制部基于线性编码器的检测值反馈控制对线性电动机的供给电流。
A control unit of a motor driver feedback-controls current supplied to a linear motor according to a detection value of a linear encoder.
还介绍了电动机的线性化范围和测试标准。
The range of linearisation and testing standard of the motor is also presented.
针对新型五自由度无轴承异步电动机这一多变量、非线性、强耦合的系统，采用逆系统的方法进行解耦控制。
A decoupling control approach based on inverse system has been used for the innovative five degree-of-freedom bearing less induction motor, which is multi-variable, nonlinear and high coupling.
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