自适应电流速断保护在双回线中的应用  

APPLICATION OF ADAPTIVE CURRENT FAST-TRIPPING PROTECTION ON DOUBLE-CIRCUIT LINES

作　　者：刘浩芳[1] 葛耀中[2] 刘俊岭 夏大洪 

机构地区：[1]胜利油田职工大学电气系,山东省东营市257004 [2]西安交通大学电气工程学院,陕西省西安市710049 [3]胜利油田规划设计研究院,山东省东营市257026

出　　处：《电力系统自动化》2002年第10期54-58,共5页Automation of Electric Power Systems

摘　　要：通过严格的理论推导 ,论证了自适应电流速断保护不仅适用于单回线运行方式 ,同样适用于双回线或环网运行方式。在双回线上应用时 ,每回线均装设各自的自适应电流速断保护 ,自适应电流速断保护在线整定计算式与单回线运行方式下的在线整定计算式相同 ,大量仿真实验证明 ,其保护性能明显优于传统电流速断保护。Strict theoretical deduction shows that adaptive current fast- tripping protection can be used not only on single- circuit line,but also on double- circuit line.For the double- circuit line,each circuit line has its own adaptive fast- tripping protection and their on- line setting equation is sam e as that of single- circuit line protection. L ots of simulations show that the perform ance of an adaptive protection is obviously better than that of a conventional one.The sam e conclusion can be applied to the ring power net.

关 键 词：电力系统 继电保护 配电线路 自适应电流速断保护 双回线 

分 类 号：TM773[电气工程—电力系统及自动化]