摘要:现如今能源的短缺和环境方面的问题越来越受到人们的关注，可再生并且清洁无污染的能源越来越受到人们的青睐。风能是一种十分清洁的可再生的能源并且其储量非常的丰富，因而风力发电技术受到各国的高度重视。本文主要对风力发电的背景以及现状作简要介绍，同时对交流励磁变速恒频技术进行一定深度的研究，并且建立了交流励磁双馈电机的数学模型。再根据风力发电系统的组成，将风力发电机组拆解为风速、风力机、传动系统以及发电机等子系统，并对这些子系统进行模型建立，最后运用MATLAB/simulink软件对建立的模型进行仿真。文章最后对于变速风力发电机组这一主流发电系统的控制部分做了一些简要的研究说明。

关键词 风力发电系统；交流励磁变速恒频；双馈电机；数学建模；matlab仿真

Abstract:Nowadays energy shortage and environmental issues have been paid attention by more and more people,renewable and clean pollution-free energy more and more get the favour of people. Wind energy is a clean renewable energy and its reserves are very rich,thus wind power technology attaches great importance to by the countries.This article mainly about a brief introduction of the background and status quo of wind power,For the ac excitation variable speed constant frequency technology research of certain depth,and established the mathematical model of ac excitation doubly-fed motor.According to the composition of wind power generation system,the wind generating set apart for wind speed,wind turbine,drive system and generator subsystem,and carries on the model of these subsystems,by using the software of MATLAB/simulink for simulation model.Finally the mainstream for variable speed wind turbine power generation system control part made some brief research suggests.

Keywords  Wind power generation system  Ac excitation variable speed constant frequency Doubly-fed motor  Mathematical modeling  The matlab simulation