一种新颖的基于内模电流控制的矢量控制系统

A Novel Vector Control System Based on Internal Model Current Control

无速度传感器矢量控制系统中存在两个关键性的问题,即速度辨识的稳定性问题和控制器结构问题。本文提出一种新型的基于模型参考自适应的内模电流控制的矢量控制系统。首先,利用MRAS理论,保证了观测器的全局稳定性,然后通过内模控制实现动态解耦,克服了PI控制不能动态解耦和其他解耦方法中对参数敏感的问题。仿真结果表明:系统对参数变化具有较强的鲁棒性,取得较好的解耦效果和系统控制性能。

Speed-sensorless vector control system has two crucial problems, namely, the stability of speed identification and the controller structure. This paper proposes a new vector control system based on an model current control. At first, MRAS. Then, the system obtains model reference adaptive system （MRAS） of internal the stability of the observer is ensured by using the dynamic decoupling and overcomes the disadvantages of PI and the others by using internal model controller. The simulation result demonstrates that the system has good robustness to the variety of parameter and the good performance of decoupling control.