基于WKBCI集控装置的电流速断保护选择控制器的设计与实现  

Design and application of current instantaneous trip protection selective controller based on WKBCI

作　　者：杨维东 朱良[2] 邓春梅 

机构地区：[1]四川百谷联合工程设计有限公司,四川成都610041 [2]长沙理工大学网络中心,湖南长沙410076

出　　处：《电力系统保护与控制》2009年第5期78-80,92,共4页Power System Protection and Control

基　　金：湖南省长沙理工大学博士科研基金资助项目

摘　　要：首先对10kV开关站电流速断保护的传统设置方式进行了阐述,分析了其中的不足,提出了电流速断选择控制的新思想。然后对某10kV开关站的电流速断选择控制功能进行了分析,提出了基于CMOS集成电路的设计方案,研制了基于WKBCI四合一微机集控装置的电流速断选择控制器。现场试验证明,该控制器的加入,使WKBCI四合一微机集控装置能保证开关站进线瞬时电流速断保护的选择性,即进出线均设瞬时电流速断保护,而进线电流速断保护能准确辨识短路故障是在保护区内还是保护区外,避免出线近端短路时进线瞬时电流速断保护动作。In this paper, the conventional current instantaneous trip protection （CITP） of 10 kV switchgear station is expounded and its shortcoming is analyzed, a new idea is put forward for improving selectivity of the CITP. Then control logic of the selectivity CITP is described for a 10 kV switchgear station, a detailed design scheme based on the CMOS is brought forward and a controller based on the WKBCI is developed. Test result shows that the controller can improve selectivity CITP of the WKBCI and get high discrimination of fault selection, which the fault is within or outside protection area and can avoid over step tripping fault.

关 键 词：继电保护 速断保护 选择控制 

分 类 号：TM571[电气工程—电器]