中国电机工程学报2017，Vol.37Issue(6)：1686-1694,9.DOI:10.13334/j.0258-8013.pcsee.160042
基于改进GN分裂算法的电磁环网分区及方案评估方法
A Method of Electromagnetic Loop Network Partition and Schemes Assessment Based on Improved GN Split Algorithm
摘要
Abstract
With the continuous expansion of grid,the connection of grid is more and more intensive.At the same time,short circuit current level is rising.The partition of 220kV grid layer has become an important measure in order to limit more short-circuit current.In this connection,the paper put forward a kind of electromagnetic loop network partition method based on improved GN (Girven Newman) algorithm.The method evaluated the importance of each node by applying network condensation degree quantitatively.Furthermore,traditional GN division algorithm partition would be employed to make splitting schemes in order to improve efficiency of partition.At the same time,the paper proposed a method of 220kV loop network partition schemes combining information entropy and principal component analysis,which emphasize three indicators those are short circuit,static-state security analysis and modularity of community structure for assessment separately.There were entropy evaluation model of the secondary index and principal component analysis and evaluation model of comprehensive indicator of level one.Finally,the article verified effectiveness of the algorithm and correctness of assessment method through New England 10-unit 39-bus system and an actual grid.关键词
电磁环网分区/节点重要度/GN分裂算法/短路电流/信息熵/主成分分析法Key words
electromagnetic loop network partition/node important degree/GN splitting algorithm/short circuit current/information entropy/principal component analysis method分类
信息技术与安全科学引用本文复制引用
苏学能,刘天琪,王彪,焦慧明,汤凡..基于改进GN分裂算法的电磁环网分区及方案评估方法[J].中国电机工程学报,2017,37(6):1686-1694,9.基金项目
国网四川省电力科学研究院科技项目(SGSCDKOOXTJS1500196).Key Technology Project of Sichuan Electric Power Research Institute (SGSCDKOOXTJS1500196). （SGSCDKOOXTJS1500196）
