摘要
线路纵联保护对通道依赖性较高,通道的运行情况直接影响保护的动作效果,进而影响电网的安全稳定运行。从双通道线路纵联保护的原理入手,分析不同实现方式的优缺点,详细对比了国内外主流保护厂家生产该类装置的实现方式,介绍了双通道线路纵联保护在国内两大电网公司的应用情况,在此基础上提出了适用于双通道纵联线路保护的分析评价指标。通过配置冗余保护通道,双通道线路纵联保护的可靠性更高,建议加大双通道线路纵联保护在500 k V及以上电压等级系统的推广使用力度,并对其配置及运行情况进行科学合理的评价,及时发现运行过程中存在的薄弱环节,确保电网的安全稳定运行。
The channel operation condition directly affects the action of line protection, thereby affecting the safe and stable operation of power grids. Starting with the principle of dual channel line protection, analyzing the advantages of dual channel line protection device, the devices made by several main manufacturers of home and abroad is compared in detail. This study also introduces the application of dual channel line protection in the two major power grids in China, and proposes several evaluation indexes of the dual channel line protection. It is suggested to increase the use of dual channel line protection in 500 kV and above voltage system, and make a scientific and reasonable evaluation of their configuration and operation. The purpose is to find out the weakness in the operation process and ensure the safety and stability of the power grids.
作者
杨国生
桂强
张烈
徐凯
阮思烨
YANG Guosheng;GUI Qiang;ZHANG Lie;XU Kai;RUAN Siye(State Key Laboratory for Power Grid Safety and Energy Conservation（China Electric Power Research Institute）,Beijing 100192,China;North China Electric Power University,Beijing 102206,China;East China Grid Corporation,State Grid Corporation of China,Shanghai 200120,China;National Power Dispatching Control Center,Beijing 100031,China)
出处
《中国电力》
CSCD
北大核心
2018年第6期77-82,共6页
Electric Power
基金
国家电网公司科技项目(继电保护设备与运行辅助决策技术研究).
关键词
电力系统
电网安全
电网运行
线路保护
光纤通道
双通道
评价指标
power system
power system security
power grid operation
line protection
fiber channel
dual-channel
evaluation indexes
