中文说明：
本书以MATLAB为基础，介绍了MATLAB电气系统模型库模块及其功能，并以实例介绍了电力电子和电机控制系统的建模和仿真方法。
English Description：
Based on MATLAB, this book introduces the MATLAB electrical system model library module and its functions, and introduces the modeling and simulation methods of power electronics and motor control system with examples