基于双向配置方向过流继电器的反时限后备保护优化整定策略  

Setting optimization of inverse-time backup protection based on bidirectional overcurrent relays

作　　者：胡傲[1] 黄景光[1] 翁汉琍[1] 宫娅宁 苏舒[2] 林湘宁[2] 

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉430074

出　　处：《电力自动化设备》2016年第10期166-171,共6页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51477090);国家电网公司科技项目(JB71-15-001)~~

摘　　要：提出一种双向配置方向过流继电器,该继电器配有2套反时限特性保护,根据故障方向设定每套保护的参数。双向配置方向过流继电器采用连接在同一条母线不同线路上的保护对,有效提高了保护系统的速动性和灵敏性。双向配置方向过流继电器的整定计算被转化为一种优化问题,将继电器间的配合问题抽象为约束条件,将主保护和备用保护的动作时间之和抽象为目标函数。IEEE 30节点的仿真结果表明,与传统保护方案相比,双向配置方向过流继电器能明显提升保护系统的速动性。A bidirectional overcurrent relay configured inversely with two inverse-time protections is proposed,whose parameters are set respectively according to the fault directions. It applies a pair of protections for different lines of same bus to effectively improve the quickness and sensitivity of protection system. The calculation of its settings is converted into a setting optimization problem,which abstracts the coordination between relays as the constraints and the total operation time of primary and backup protections as the objective function. The simulative results of IEEE 30-bus system illustrate that,the protection scheme based on the bidirectional overcurrent relays has obviously higher system quickness than conventional protection scheme.

关 键 词：继电保护 反时限特性 方向过流继电器 优化 保护配合 整定计算 电力系统 

分 类 号：TM77[电气工程—电力系统及自动化]