中国电机工程学报2012，Vol.32Issue(4)：108-114,7.
采用多馈入交互作用因子判断高压直流系统换相失败的方法
A Commutation Failure Detection Method for HVDC Systems Based on Multi-infeed Interaction Factors
邵瑶 1汤涌1
作者信息
- 1. 中国电力科学研究院,北京市海淀区100192
- 折叠
摘要
Abstract
At present,the problem whether the AC faults in the multi-infeed AC/DC receiving-end power grid will lead to simultaneous commutation failures of multiple HVDC transmission lines is mainly analyzed by means of simulation tools.But the calculation load of the method is large and the calculation time is long.This paper presented a fast method to determine the commutation failure of multi-infeed HVDC system instead of simulation analysis.The multi-infeed interaction factor（MIIF） based on node impedance matrix was defined and the general expression of the critical multi-infeed interaction factor（CMIIF） was derived through the minimum extinction angle criteria.A method based on CMIIF to determine commutation failure is put forward： when a three-phase short-circuit fault at the commutation bus on inverter side of one HVDC system occurs,if the MIIF between the one and another HVDC system is larger than the CMIIF,then we can know another HVDC commutation failure occurs simultaneously.The simulation results of a two-infeed HVDC test system and an actual system proved the accuracy and validity of the proposed index and the method.关键词
多馈入高压直流输电系统/换相失败/多馈入交互作用因子/临界多馈入交互作用因子Key words
multi-infeed HVDC transmission system/commutation failure/multi-infeed interaction factor（MIIF）/critical multi-infeed interaction factor（CMIIF）分类
信息技术与安全科学引用本文复制引用
邵瑶,汤涌..采用多馈入交互作用因子判断高压直流系统换相失败的方法[J].中国电机工程学报,2012,32(4):108-114,7.
