摘要
随着社会和经济的持续发展,人们对能源的需求不断增长,导致传统的化石燃料越来越紧缺,而风能作为一种清洁的可再生能源,受到了很多国家的青睐。目前我国的大功率直驱风力发电并网变流器很大部分还依赖于进口,尤其是对变流器的控制还不成熟,因而对其研究也至关重要。这里介绍了双PWM系统的拓扑结构,对永磁直驱风电并网变流器网侧和机侧的控制方法进行了研究,并通过仿真验证了其控制策略的可行性。对研制的1.5 MW直驱风电并网变流器样机进行了互馈实验,实验表明对机侧和网侧变流器的控制策略满足并网变流器的控制要求。
With the sustainable development of the society and economy, the demand for the energy is growing rapid- ly result in an increasing shortage of the traditional fossil fuels.Wind energy, as a clean renewable energy, has been popular in many countries.We are still depends on imports for the power converter,especially for the control of it which makes it more important to study.The topology of the double PWM is introduced.The control strategies of line- side converter and generator-side converter are both discussed.The simulations and experiments of the grid-connected converter for 1.5 MW permanent magnet direct-driven wind turbine demonstrate the correctness of the research results.
出处
《电力电子技术》
CSCD
北大核心
2011年第11期41-43,共3页
Power Electronics
关键词
风电机组
并网变流器
双脉宽调制
wind turbine
grid-connected converter
double pulse width modulation
