双馈风力机变流器外围电路设计与研究  

The Peripheral Circuit Design and Research of the Doubly-fed Wind Turbine's Converter

作　　者：蒋耀生[1] 徐凤星[1] 郭知彼[1] 

机构地区：[1]中国南车株洲电力机车研究所有限公司,湖南株洲412001

出　　处：《电力电子技术》2012年第3期46-48,共3页Power Electronics

摘　　要：为了满足双馈风力机变流器外围电路在电网故障条件下能够正常工作的要求,这里设计了网侧LCL滤波器、中间直流电容和中间斩波电路。利用三相并网变流器的实验装置验证了其设计方案的正确性,同时提高了电网电压不对称跌落时双馈风力机向电网输送电能的质量以及风电机组低电压穿越能力。In order to meet the normal work requirements of the peripheral circuits of doubly-fed wind turbine＇s con-verter during power system fault conditions,the network side LCL filter,intermediate DC capacitor and intermediate DC chopper circuit are designed.The correctness of design scheme is verified by using experimental device of three-phase grid-connected converter.While the electric energy quality transmitted by doubly-fed wind machine to the net-work as well as the low voltage ride-through capability of wind turbine are improved during asymmetric voltage droping.

关 键 词：双馈风力机 滤波器 直流电容 斩波电路 

分 类 号：TM315[电气工程—电机]