说明：  三相异步电动机变频器调速系统，它通过变频器，将频率固定的交流电变换成频率连续可调交流电源。本文为基于Matlab的异步电动机变频调速系统的仿真研究。
(Three-phase asynchronous motor inverter speed control system, through the inverter, the fixed-frequency alternating current is converted into frequency AC power continuously adjustable. This article is based on Matlab asynchronous motor frequency control system simulation.)