电力系统自动化Issue(7)：157-163,7.DOI:10.7500/AEPS20140428016
大串补度输电线路的电流差动保护分析与对策
Analysis and Countermeasures of Current Differential Protection on Transmission Line with High Series Compensation Degree
摘要
Abstract
Series capacitor compensation technology is one of the key technologies in EHV and UHV long distance transmission.With wide application of the series compensation device and rapid development of the power grid,transmission lines with high series compensation degree may well appear which will affect the protection of transmission lines and even the main protection performance.The operation characteristics of the main protection are studied by referring to engineering practice,and the influence of the transition resistance,system operation mode and power angle on the current differential protection is analyzed.According to the simulation results,countermeasures for improving the sensitivity of differential current protection are presented.关键词
串联电容补偿/线路串联补偿度/输电线路/故障特性/电流差动保护Key words
series capacitor compensation/line series compensation degree/transmission line/fault characteristics/current differential protection引用本文复制引用
唐萃,尹项根,戚宣威,朱晓彤,明浩,张哲..大串补度输电线路的电流差动保护分析与对策[J].电力系统自动化,2015,(7):157-163,7.基金项目
国家自然科学基金资助项目(51177058,51277084).@@@@This work is supported by National Natural Science Foundation of China （51177058,51277084）
