交流系统故障时柔性直流系统的控制策略  

Control strategy of Flexible DC system for AC system failure

作　　者：刘菁[1] 顾黎强[1] 

机构地区：[1]上海市电力公司浦东供电公司,上海200125

出　　处：《华东电力》2012年第1期136-140,共5页East China Electric Power

摘　　要：对VSC-HVDC联结2个交流有源网络时的运行特性进行分析,建立了VSC-HVDC系统的模型,在此基础上根据系统所要完成的功能确定对两个VSC的控制策略,对控制系统中的具体环节进行了设计。通过交流故障实验波形分析了VSC在系统故障时提供无功功率并稳定电压的作用。This paper analyzes VSC-HVDC operation properties when connecting two active AC systems,and establishes the model for VSC-HVDC system.Thereby the control strategy for the two VSCs is determined based on the functions to be performed by the system,and the specifics of the control system are designed.Through the tested AC fault waveform,analysis is made on VSC effect on providing reactive power and reinforcing voltage stability in the case of system failure.

关 键 词：电压源换流器 解耦控制 功率控制 电压控制 

分 类 号：TM721.3[电气工程—电力系统及自动化]