摘要
在电网中的某些超高压输电线路上实施二次自动重合闸能够提高电网的稳定性。目前华北电网已有部分500kV输电线路试点运行了具备二次自动重合闸功能的继电保护装置,但该装置的推广应用还存在一些障碍。为促进二次自动重合闸在国家电网公司范围内的应用,本文分析了当前华北电网试点运行的二次自动重合闸装置在国网公司"六统一"规范下的适应性,指出了存在的问题,提出了解决方案。在此基础上,还提出了基于"六统一"规范的500kV输电线路二次自动重合闸方案和装置设计。
The power grid stability can be improved by the using of two-shot auto-reclosing on EHV transmission lines.At present in North China power grid,protection devices with two-shot auto-reclosing function have been used on some 500kV transmission lines,but some obstacles remain in the popularization and application of this kind of devices.In order to promote the using of two-shot auto-reclosing in the state grid of China,this paper analyzes the adaptability of the current two-shot au-to-reclosing scheme used on 500kV transmission lines in North China power grid under the six-unified standards of State Grid,and puts forward the existing problems and solutions.On this basis,two-shot auto-reclosing scheme of 500kV transmission lines based on the six-unified standards logics are proposed,as well as the logic design of device.
作者
刘奎
杜鹃
陆金凤
戴光武
杨慧敏
Liu Kui;Du Juan;Lu Jinfeng;Dai Guangwu;Yang Huimin(NR Electric Co.,Ltd,Nanjing 211102;North China Grid Co.,Ltd,Beijing 100053)
出处
《电气技术》
2020年第6期111-115,121,共6页
Electrical Engineering
关键词
二次重合闸
500KV输电线路
六统一规范
two-shot auto-reclosing
500kV transmission lines
the six-unified standards
