中国电机工程学报2017，Vol.37Issue(22)：6471-6480,10.DOI:10.13334/j.0258-8013.pcsee.171540
适用于多馈入直流系统静态电压稳定分析的综合短路比强度指标
Integrated Short Circuit Ratio Strength Index for Static Voltage Stability Analysis of Multi-infeed LCC-HVDC Systems
摘要
Abstract
Facing the issue that earlier strength indices for multi-infeed LCC-HVDC (MIDC) systems fail to indicate static voltage stability accurately,the definition method of the strength index for the MIDC system was studied based on the static voltage stability.Firstly,an equivalent coupled admittance concept was defined based on the multi-infeed interaction factor (MIIF) index,which can be used to quantify the effect of other LCC-HVDC links on the studied LCC-HVDC Link.Then,a single-port equivalent model of the MIDC system was established based on the equivalent coupled admittance concept.This enables a multi-infeed integrated short circuit ratio (MISCR) strength index to be developed,which can indicate the static voltage stability of the MIDC system accurately.Finally,case studies conducted on a 4-infeed LCC-HVDC system considering various dc power increasing scenarios and control modes combination imply that the proposed MISCR index has more superior performance in the assessment of the static voltage stability for the MIDC system than the earlier strength indices.关键词
多馈入直流系统/静态电压稳定/交流系统强度/多馈入综合短路比/等值耦合导纳Key words
multi-infeed line commutated converter based high voltage direct current (MIDC)/static voltage stability/AC system strength/multi-infeed integrated short circuit ratio (MISCR)/equivalent coupled admittance分类
信息技术与安全科学引用本文复制引用
肖浩,李银红,石东源,陈金富,段献忠..适用于多馈入直流系统静态电压稳定分析的综合短路比强度指标[J].中国电机工程学报,2017,37(22):6471-6480,10.基金项目
国家重点研发计划项目(2016YFB0900100).Project Supported by the National Key Research and Development Program of China (2016YFB0900100). （2016YFB0900100）
