An electrical betweenness approach for vulnerability assessment of power grids considering the capacity of generators and load

Kai Wang, Bu-han Zhang, Zhe Zhang, Xiang-gen Yin and Bo Wang

Physica A: Statistical Mechanics and its Applications, 2011, vol. 390, issue 23, 4692-4701

Abstract: Most existing research on the vulnerability of power grids based on complex networks ignores the electrical characteristics and the capacity of generators and load. In this paper, the electrical betweenness is defined by considering the maximal demand of load and the capacity of generators in power grids. The loss of load, which reflects the ability of power grids to provide sufficient power to customers, is introduced to measure the vulnerability together with the size of the largest cluster. The simulation results of the IEEE-118 bus system and the Central China Power Grid show that the cumulative distributions of node electrical betweenness follow a power-law and that the nodes with high electrical betweenness play critical roles in both topological structure and power transmission of power grids. The results prove that the model proposed in this paper is effective for analyzing the vulnerability of power grids.

Keywords: Power grids; Complex networks; Vulnerability; Electrical betweenness; Loss of load (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (22)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:390:y:2011:i:23:p:4692-4701

DOI: 10.1016/j.physa.2011.07.031

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