摘要
利用ETAP软件建立了仿真模型,针对分布式电源的容量和接入位置等因素,探讨了分布式电源对配电网短路电流分布和继电保护的影响.结果表明:分布式电源会影响配电网中的电流保护以及自动装置的正常工作,引起保护误动或拒动,使保护失去选择性.
With ETAP software, distribution system model and DG model are built and the current protection is calculated. On the basis of the size and location of DG the effects on the short circuit current and protection of distribution system. The result shows the DG will influence the normal operation of current protection and automatic device, such as misoperation or rejected move, leading to the lose of selectivity.
出处
《上海电力学院学报》
CAS
2012年第4期325-328,共4页
Journal of Shanghai University of Electric Power
基金
上海市教育委员会重点学科建设项目(J51301)
关键词
分布式电源
配电网
继电保护
短路电流
DG
distribution network
relay protection
short circuit current
