基于永磁直驱风力发电系统低电压穿越技术研究  

Research on Low Voltage Ride-Through Technology Based on Permanent Magnet Direct-Drive Wind Power Generation System

作　　者：王森 段慧达 WANG Sen;DUAN Huida(School of Electrical Engineering&Information,Changchun Institute of Technology,Changchun 130012,China)

机构地区：[1]长春工程学院电气与信息工程学院,长春130012

出　　处：《长春工程学院学报(自然科学版)》2025年第1期53-60,共8页Journal of Changchun Institute of Technology:Natural Sciences Edition

摘　　要：随着风力发电装机总量不断提高,其安全稳定运行的要求也越来越严格。当电网发生短路故障,产生电压跌落时,为了满足风电系统稳定运行,对电网电压跌落的暂态特性进行了研究,重点研究了直流侧过电压保护以及无功补偿控制的低电压穿越技术,并针对电网电压出现不同程度跌落的问题,提出基于Crowbar电路+网侧无功优先控制的低电压穿越策略,最后仿真验证了所提控制策略的可靠性。With the continuous increase in the total installed capacity of wind power generation,the requirements for its safe and stable operation are becoming increasingly strict.When a short circuit fault occurs in the power grid and voltage drop occurs,in order to ensure the stable operation of the wind power system,the transient characteristics of voltage drop in the power grid are studied.The focus is on the low voltage ride through technology of DC side over voltage protection and reactive power compensation control.In response to the problem of varying degrees of voltage drop in the power grid,a low voltage ride through strategy based on Crowbar circuit and grid side reactive power priority control is proposed.Finally,the reliability of the proposed control strategy is verified through simulation.

关 键 词：直驱式风力发电机 CROWBAR电路 LVRT协调控制 

分 类 号：TM614[电气工程—电力系统及自动化]