电工技术学报2016，Vol.31Issue(22)：159-167,177,10.
不对称参数同塔四回线的综合横差保护方案
Transverse Differential Protection for Quadruple-Circuit Lines with Asymmetrical Parameters
摘要
Abstract
Due to the asymmetrical parameters of the quadruple-circuit lines, a new method for transverse differential protection and line selection is proposed. Fault super-imposed networks of the quadruple-circuit lines are discussed, and sequence currents of each line are also calculated during a fault. According to the characteristics of sequence currents obtained by the protector, negative- component based transverse differential protection approach is proposed. Different connection schemes of transverse differential protection are considered, and the setting values of the protection are calculated corresponding to different schemes. All the signals of all the protections are acquired by line selection to judge which line to be cut off. Simulation results have verified the reliability and feasibility of the negative-component based transverse differential protection.关键词
同塔四回线/不对称线路/横差保护/序分量/选线Key words
Quadruple-circuit lines/asymmetrical line/transverse differential protection/sequence component/line selection分类
信息技术与安全科学引用本文复制引用
刘琦,邰能灵,范春菊,于仲安,尚瑨..不对称参数同塔四回线的综合横差保护方案[J].电工技术学报,2016,31(22):159-167,177,10.基金项目
国家自然科学基金资助项目（51177066、51377104）。 （）
