基于模糊PI控制的三相异步电机Simulink建模与仿真

为了设计一个高性能的三相异步电机矢量变频调速控制系统，且考虑到要用于三相异步电机驱动的隔膜计量泵控制系统，采用了模糊PI调节器。利用Matlab／Simulink仿真软件对该控制系统进行了建模，在模糊PI调节器中设定合理的控制规则并选取合适的P值与I值。运行后所得的仿真结果显示，输出的转速、电流等波形曲线符合理论要求，整个加速过程时间短，且无超调现象。研究结果表明，采用模糊PI控制的三相异步电机矢量控制系统具有良好的启动、加速和调速性能。

Modeling and simulation on Simulink for three-phase asynchronous motor based on fuzzy-PI control

In order to design a better control system, the fuzzy PI regulator was adopted, which could improve the performance of a three- phase asynchronous motor vector frequency conversion control system for the diaphragm metering pump. The simulation model for the control system was created by using Matlab/Simulink. In the fuzzy PI regulator, the control rules were set reasonable and the P value and I value were chosen suitable. The experimental results show that the outputs curve of speed and current accord with theory. There is no overshoot phenomenon in the whole acceleration process, and the time it costs is very short. So the three-phase asynchronous motor vector control sys- tem with fuzzy-PI control has excellent peformances of starting, accelerating and speed regulation.