南方电网技术2017，Vol.11Issue(11)：13-19,7.DOI:10.13648/j.cnki.issn1674-0629.2017.11.003
柔性直流输电提升常规直流输电短路比的原理及方法
Principle and Method of Improving Short Circuit Ratio of LCC-HVDC Through VSC-HVDC
摘要
Abstract
VSC-HVDC has significant influence on LCC-HVDC in hybrid multi-infeed HVDC system.Based on a hybrid dual-infeed HVDC system,the multi-infeed effective short circuit ratio (MIESCR) is deduced which quantitates the improvement effect of infeed point and infeed current of VSC-HVDC to LCC-HVDC.Considering both the normal operation target of VSC-HVDC and the transient voltage compensation needed by LCC-HVDC,a control strategy of VSC-HVDC is proposed which can achieve maximum MIESCR,and its effectiveness is verified through digital simulation in PSCAD.关键词
柔性直流输电/混合双馈入直流系统/有效短路比/多馈入有效短路比Key words
VSC-HVDC/hybrid dual-infeed HVDC system/effective short circuit ratio/multi-infeed effective short circuit ratio分类
信息技术与安全科学引用本文复制引用
朱良合,袁志昌,盛超,骆潘钿,梁益,杨汾艳,陈锐,刘正富..柔性直流输电提升常规直流输电短路比的原理及方法[J].南方电网技术,2017,11(11):13-19,7.基金项目
国家重点研发计划(2017YFB0902301).Supported by the National Key Research and Development Program of China (2017YFB0902301). （2017YFB0902301）
