电力系统保护与控制2018，Vol.46Issue(4)：114-119,6.DOI:10.7667/PSPC170217
一种基于功率方向的智能变电站中低压母线保护方案
A scheme of mid-low voltage busbar protection based on power direction in intelligent substation
摘要
Abstract
For a long time, there is no enough attention on the 10 kV (or 35 kV) and below mid-low voltage busbar protection. If bus fault occurs, the selectivity and rapidity of busbar protection is poor. To improve mid-low voltage busbar protection, this paper proposes a scheme of mid-low voltage busbar protection for intelligent substation based on power direction combining with the characteristics of mid-low voltage system, which includes its constitution mode, function logic, and network structure. Moreover, it uses simulation system to verify and analyze power directional element. The scheme is of simple principle, excellent selectivity and rapidity, so it can be popularized and applied in intelligent substation without increasing investment cost.关键词
功率方向/中低压/母线保护/智能变电站/仿真Key words
power direction/middle-low voltage/busbar protection/intelligent substation/simulation引用本文复制引用
刘洋,吴水兰,朱若松,张建雨,汤鸿,魏燕..一种基于功率方向的智能变电站中低压母线保护方案[J].电力系统保护与控制,2018,46(4):114-119,6.基金项目
国家电网公司科技项目[2017]"智能变配用二次装置通用平台关键技术研究"This work is supported by Science and Technology Project of State Grid Corporation of China [2017] "Key Techniques Research of Secondary Device Universal Platform used in Intelligent Transformer". （）
