基于模糊自整定的异步电机矢量控制系统仿真

Simulation of Asynchronous Motor Vector Control System Based on Self-adjusting Fuzzy Controller

设计了一种自调整模糊控制器,应用于转差频率型矢量控制系统,作为其速度调节器.该调节器可以根据输入变量的大小调整模糊控制器的量化因子、比例因子和两个输入变量的权重,从而自动调整模糊控制规则.利用Matlab/Simulink仿真软件,建立了仿真模型.通过大量的仿真试验验证了这种自调整模糊控制器在异步电机矢量控制系统中的有效性.

A selfadaptive fuzzy controller (SAFC) is designed in this paper.The controller adjusts the fuzzy rules according to scaling the fuzzy controller parameter weights of each input variation.After a lot of theoretic studies,the SAFC is used as the speed controller of a slip frequency vectorcontrolled induction motor.At the same time,the system simulation model is built with MATLAB/SIMULINK.The simulation results verify that SAFC not only improves dynamic and static performance of control system,but also has higher robust which is weaker in PI control method.That is to say,the results demonstrate the effectiveness of SAFC in AC frequency control system.