电测与仪表Issue(11)：43-48,6.
基于负序分量的分布集中式广域后备保护研究
A centralized-distributed wide area backup protection study based on negative sequence component
聂宏展 1王菲 1袁晓丹1
作者信息
- 1. 东北电力大学电气工程学院，吉林吉林132012
- 折叠
摘要
Abstract
A centralized-distributed wide area backup protection is presented on negative sequence component .This paper determines the likely faulty area composed of likely faulty buses and lines by sorting the negative sequence volt -age of buses , based on the distribution characteristic of negative sequence voltage .A hierarchical searching algorithm is applied in this paper .It firstly estimates the direction of negative sequence flow of the IED concerned with strongly suspected faulty buses and lines , until the faulty buses or lines are removed .This algorithm uploads only the message of strongly suspected faulty area to the decision center , which reduces the calculated quantity and communication traf-fic and speeds up faulty elements identification .Simulation test illustrates the effectiveness and the adaptability when grounding resistance and flow transferring and cross-country fault happens .关键词
广域继电保护/负序功率/电压分布/故障方向Key words
wide area protection/negative sequence power/voltage distribution/fault direction分类
信息技术与安全科学引用本文复制引用
聂宏展,王菲,袁晓丹..基于负序分量的分布集中式广域后备保护研究[J].电测与仪表,2015,(11):43-48,6.
