基于RTDS的双馈风力发电系统无功补偿研究  

Research on Reactive Power Compensation of Grid Connected System of Dfig Based on Rtds

作　　者：许泽阳 范宏[2] 李孜[3] 

机构地区：[1]上海电气集团股份有限公司中央研究院,上海200070 [2]上海电力学院电气工程学院,上海200090 [3]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《电气传动》2016年第6期15-18,共4页Electric Drive

基　　金：国家自然科学基金(51307104);上海市教育委员会科研创新项目(11zz133)

摘　　要：基于RTDS电力系统实时仿真平台的动态无功补偿装置接入DFIG数字动模系统,对STATCOM主电路以及控制系统进行分析,搭建了基于间接电流控制的高压STATCOM小步长系统。通过对DFIG变流器的理论分析,搭建双馈风机网侧和转子侧变流器控制系统。最后将STATCOM通过断路器连接到DFIG实时风力发电系统中。研究表明:投入STATCOM的DFIG并网系统可以有效地抑制因风速突变引起并网电压的跌落,提高DFIG的低电压穿越能力。Design a dynamic reactive power compensator attached to DFIG digital dynamic simulation systembased on RTDS platform to do research on the effect of STATCOM to DFIG,analysis on the main circuit and thecontrol system of STATCOM was dsdigned,based on indirect current control theory,high voltage STATCOM smalltime step model was built. According to the converter theory of DFIG,the control system of the grid side converter andthe rotor side converter was built. Finally STATCOM was connected to DFIG real time wind power generation systemthrough a three-phase breaker and research into STATCOM′s impact on the DFIG grid connected system was done.The result show that:the DFIG grid connected system that running with STATCOM can effectively overcome thevoltage sag caused by the sudden change of wind speed,which can improve the ability of low voltage ride through(LVRT).

关 键 词：实时仿真器 静止无功补偿器 无功补偿 双馈风力发电机 

分 类 号：TM71[电气工程—电力系统及自动化]