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以异步电动机矢量控制的基本方程式为基础,构建了一个无速度传感器矢量控制系统。系统的转速推算采用模型参考自适应控制(MRAC)理论。为了提高矢量控制系统的性能,提出并设计了3个模糊PID控制器,分别控制间接矢量控制系统中的速度、转矩和磁链。仿真结果表明基于该方法的系统能获得比较好的控制性能。
Based on the basic equations of induction motor vector control, a sensorless vector control system is constructed. System speed estimation using model reference adaptive control (MRAC) theory. In order to improve the performance of vector control system, three fuzzy PID controllers are proposed and designed to control the speed, torque and flux linkage of the indirect vector control system respectively. The simulation results show that the system based on this method can get better control performance.