山东理工大学学报(自然科学版)Issue(5):43-48,6.
有源配电网分布式智能电流保护方案
The distributed intelligence current protection scheme in active distribution network
摘要
Abstract
The power supply reliability of distribution network can be improved by the distributed electric resources connected ,but the characteristics of power flow is changed ,which may lead the current distribution network protection to operate incorrectly .The short circuit current provided by fault branch is larger .The closer to the fault point ,the larger the short‐circuit current is pro‐vided by distributed electric resources , w hich is independent of other distributed electric re‐sources exit or connection of the grid .The intelligence current protection scheme is based on fault current characteristics .First of all ,the fault location is made between the two agents ,then the point of failure is determined .The switch of both fault point sides is tripped in order to isolate fault segments and restore power of non‐fault segments .The feasibility of the scheme is verified by Matlab/Simulink ,the simulation results show that the fault location can be determined accu‐rately by the scheme .关键词
分布式电源/有源配电网/故障定位/故障隔离/供电恢复Key words
distributed electric resources/active distribution network/fault location/fault isola-tion/restore power分类
信息技术与安全科学引用本文复制引用
王泽民,张新慧,蔡艳春,孙学峰,咸日常..有源配电网分布式智能电流保护方案[J].山东理工大学学报(自然科学版),2015,(5):43-48,6.基金项目
南方电网公司中介项目 ()