主动配电网分区域自适应电流保护  

Regional Adaptive Current Protection for Active Distribution Network

作　　者：胡洛铖 杨仁增 李鑫海 HU Luocheng;YANG Renzeng;LI Xinhai(School of Electrical Engineering,Guizhou University,Guiyang 550025,China;College of Big Data,Guizhou Institute of Technology,Guiyang 550003,China)

机构地区：[1]贵州大学电气工程学院,贵州贵阳550025 [2]贵州理工学院大数据学院,贵州贵阳550003

出　　处：《机械与电子》2023年第5期7-11,共5页Machinery & Electronics

基　　金：贵州省科技基金项目[黔科合基础20181068]。

摘　　要：通过分析含分布式电源的电网特性,提出了一种分区域自适应电流保护方案。对于分布式电源并网线路区域,提出一种基于补偿系数的自适应电流差动保护方案;馈线区域则采用基于本地正序电气量的自适应正序电流速断保护方案。通过在PSCAD上进行仿真,验证了该方案的可行性。By analyzing the characteristics of the power grid with distributed power supply,a regional adaptive current protection scheme is proposed.An adaptive current differential protection scheme based on compensation coefficient is proposed for the grid-connected line area of distributed power supply.In the feeder area,the adaptive positive-sequence current velocity break protection scheme based on the local positive-sequence electric volume is adopted.The feasibility of the scheme is verified by simulationon PSCAD.

关 键 词：逆变型分布式电源 自适应电流差动保护 分区域 自适应正序电流速断保护 

分 类 号：TM727[电气工程—电力系统及自动化]