Identification of critical nodes for cascade faults of grids based on electrical PageRank  

作　　者：Qingyu Su Cong Chen Zhenglong Sun Jian Li 

机构地区：[1]Northeast Electric Power University,Jilin 132000,P.R.China [2]Israel Institute of Technology,Haifa 32000,Israel

出　　处：《Global Energy Interconnection》2021年第6期587-595,共9页全球能源互联网（英文版）

基　　金：supported by the National Natural Science Foundation of China(61873057).

摘　　要：In this paper,the electrical PageRank method is proposed to identify the critical nodes in a power grid considering cascading faults as well as directional weighting.This method can rapidly and accurately focus on the critical nodes in the power system.First,the proposed method simulates the scenario in a grid after a node is attacked by cascading faults.The load loss of the grid is calculated.Second,the electrical PageRank algorithm is proposed.The nodal importance of a grid is determined by considering cascading faults as well as directional weights.The electrical PageRank values of the system nodes are obtained based on the proposed electrical PageRank algorithm and ranked to identify the critical nodes in a grid.Finally,the effectiveness of the proposed method is verified using the IEEE39 node system.The proposed method is highly effective in preventing the occurrence of cascading faults in power systems.

关 键 词：Security and stability Cascading failures Electrical PageRank algorithm Critical nodes 

分 类 号：TM73[电气工程—电力系统及自动化]