中国电机工程学报2017，Vol.37Issue(18)：5303-5312,10.DOI:10.13334/j.0258-8013.pcsee.170595
直流多馈入系统的广义短路比:影响因素分析
Generalized Short Circuit Ratio for Multi-infeed DC Systems: Influence Factors
摘要
Abstract
Under several assumptions,generalized short circuit ratio (gSCR) can be used to measure the connected AC strength from the voltage stability point of view.This paper discussed the applicability of gSCR under the weakened assumptions.Based on power bifurcation analysis,we consider two HVDC control modes:constant current constant extinction angle (CC-CEA),constant power constant extinction angle (CP-CEA).It can be found that,the derivation ofgSCR is same under CP-CEA and CC-CEA,and the critical generalized short circuit ratio (CgSCR) and boundary generalized short circuit ratio (BgSCR) are unified on the two traditional HVDC control modes.Meanwhile,based on gSCR,line impedance angle and tie-line power have been considered.Numerical simulations illustrate that for a MIDC on different HVDC control modes,the strength of the AC system can be described better by the defined gSCR,and the critical and boundary gSCR decrease after considering line impedance angle and tie-line power,but have little change in value.关键词
广义短路比/直流控制方式/线路电阻/联络功率Key words
generalized short circuit ratio (gSCR)/HVDC control mode/line resistance/tie-line power分类
信息技术与安全科学引用本文复制引用
章枫,辛焕海,徐谦,戴攀,秦晓辉..直流多馈入系统的广义短路比:影响因素分析[J].中国电机工程学报,2017,37(18):5303-5312,10.基金项目
国家重点研发计划项目(2016YFB0900104) （2016YFB0900104）
国网浙江省电力公司科技项目(5211JY160011).Supported by the National Key Research and Development Program of China(2016YFB0900104) （5211JY160011）
The State Grid Zhejiang Electric Power Company(5211JY160011). （5211JY160011）
