中国电机工程学报2015，Vol.35Issue(11)：2711-2717,后插9,8.DOI:10.13334/j.0258-8013.pcsee.2015.11.009
多馈入直流系统换相失败免疫水平快速确定方法研究
Study on Rapid Determination Method of Commutation Failure Immunity Levels for Multi-infeed HVDC Transmission Systems
肖浩 1朱佳 1李银红 1李明2
作者信息
- 1. 强电磁工程与新技术国家重点实验室(华中科技大学),湖北省武汉市 430074
- 2. 南方电网科学研究院,广东省广州市 510080
- 折叠
摘要
Abstract
In view of the fact that commutation failures of multi-infeed HVDC systems are mainly analyzed under simulation tools at present, the analytical expressions of local commutation failure immunity index (LCFII) and concurrent commutation failure immunity index (CCFII) were derived based on the minimum extinction angle criteria. Using these expressions, the impacts of system parameters on commutation failure immunity levels in the inverter side can be determined quickly and effectively. LCFII is approximately proportional to effective short circuit ratio (ESCR) of the faulted AC system. With the critical multi-infeed interaction factor (CMIIF) unchanged, CCFII is proportional to ESCR of the faulted AC system and has a negative correlation with multi-infeed interaction factor (MIIF). The simulation results of a dual-infeed HVDC system proved the validity and accuracy of the obtained expressions.关键词
多馈入直流输电系统/换相失败/换相失败免疫因子/有效短路比/多馈入交互作用因子Key words
multi-infeed HVDC transmission system/commutation failure/commutation failure immunity index (CFII)/effective short circuit ratio (ESCR)/multi-infeed interaction factor (MIIF)分类
信息技术与安全科学引用本文复制引用
肖浩,朱佳,李银红,李明..多馈入直流系统换相失败免疫水平快速确定方法研究[J].中国电机工程学报,2015,35(11):2711-2717,后插9,8.
