动态延时分相顺序控制的断路器合闸新方法  

A Novel Method of Circuit Breaker Closing Based on Dynamic Delayed Split Phase Sequence Control

作　　者：曹媛[1] 霍利民[1] 曹树江 李海涛[3] 曹洋 CAO Yuan;HUO Limin;CAO Shujiang;LI Haitao;CAO Yang(Agricultural University of Hebei Province, Baoding 071001, China;State Grid Hebei Electric Power Company, Shijiazhuang 050021, China;Nanjing Nari-Relays Protection Electric Power Co. , Ltd. , Nanjing 211100, China;State Grid Gaocheng branch of Shijiazhuang power supply company, Shijiazhuang 052160, China)

机构地区：[1]河北农业大学,河北保定071001 [2]国网河北省电力有限公司,河北石家庄050021 [3]南京南瑞继保电气有限公司,江苏南京211100 [4]国网石家庄供电公司藁城分公司,河北石家庄052160

出　　处：《电工技术》2018年第7期84-86,共3页Electric Engineering

基　　金：河北农业大学大学生创新创业大赛训练计划资助项目(编号201710086041)

摘　　要：针对超高压输电线路并联电抗器引起的直流偏置电流制约断路器开断灭弧,设计了断路器顺序合闸控制原理及相应装置,提出动态延时分相顺序合闸的新方法,适用于电力系统中变电站、发电厂的分相控制断路器特殊目的的合闸控制。经过工厂试验和工程验证,该方案能有效解决输电线路偏置电流影响断路器灭弧的难题。To solve the problem of shunt reactor in UHV transmission lines caused breaker interrupter of DC offset current, the scheme and the device of circuit breaker closing based on sequence control was designed. A novel method of dynamic delay split phase sequence switch was proposed. The proposed scheme was applicable to in substation and power plant phase control circuit breaker with special purpose switching control in power system. Through factory test and engineering verification, the scheme could effectively solve the problem caused by DC offset current of the breaker in transmission line.

关 键 词：断路器 顺序合闸 动态延时 直流偏置电流 并联电抗器 

分 类 号：TM571[电气工程—电器]