智能配电网应用差动保护技术相关问题研究  

Research on Application of Differential Protection Technology in Smart Distribution Grids

作　　者：赵曼勇[1] 谭志海[2] 文安[1,3] 黄维芳 Zhao Manyong;Tan Zhihai;Wen An;Huang Weifang(China Southern Power Grid Power Dispatching Control Center,Guangzhou Guangdong 510623,China;China Southern Power Grid Research Institute,Guangzhou Guangdong 510062,China;Beijing Sifang Automation Co.,Ltd.,Beijing 100000,China)

机构地区：[1]中国南方电网电力调度控制中心,广东广州510623 [2]北京四方继保自动化股份有限公司,北京100000 [3]南方电网科学研究院,广东广州510062

出　　处：《电气自动化》2018年第5期41-43,共3页Electrical Automation

摘　　要：差动保护技术应用于智能配电网,存在配电网拓扑变化频繁导致相关参数配置维护工作量大和配电网多等通信方式。馈线中既有断路器又有负荷开关混合组网的适应性的问题。对上述问题进行了分析研究,提出了相应的解决方案,分别提出了拓扑变化自适应,多种通信方式下的全网数据同步和对时、断路器负荷开关混合组网的故障处理。基于提出的解决方案,研制了应用于智能配电网的差动保护设备样机,在基于RTDS的仿真测试环境和示范工程应用中验证了提出的相应问题解决方案的可行性。Differential protection technology used in smart distribution grids has such problems as heavy maintenance workload for parameter configuration due to frequent topological changes of the distribution grid,as well as adaptation to a variety of grid communication modes and to the hybrid networking with the feeder line including both circuit breakers and load switches. These problems were analyzed and studied,and corresponding solutions were presented,including self-adaption to topological changes,whole-network data synchronization and time check for various communication modes,and fault treatment for hybrid networking of circuit breaker and load switch. Based on the proposed solutions,a differential protection prototype was developed for application to smart distribution grids. Its application in RTDS-based simulation environment and demonstration projects verified the feasibility of the proposed solutions for corresponding problems.

关 键 词：智能配电网 差动保护 拓扑自适应 保护配置文件 混合组网 故障处理 

分 类 号：TM727[电气工程—电力系统及自动化]