两种控制方法在异步电机矢量控制系统上的比较研究

Study on Asynchronous Motor Vector Control System Based on Two Methods

扰动或负载的加入对异步电机的矢量控制系统会产生影响,使系统性能变差,基于PID的异步电机矢量控制可以使系统性能获得一定的改善.文中提出了一种新的方法,介绍了基于滑模变结构的异步电机矢量控制,对滑模变结构电流控制器进行了设计并选取合适的控制参数.仿真了两种方法下的系统控制,结果表明新方法比传统的PID控制更有效.

The disturbance or loading may affect the performance of the asynchronous motor vector control system. The vector control based on traditional PID can improve the performance to some degree. A new method called sliding mode variable structure is introduced in this article. The current controller based on sliding mode variable structure is designed and the suitable parameter is obtained. The control systems based on the two methods are simulated and the results show that the new method runs better than PID control.