期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 395, 期 -, 页码 405-415出版社
ELSEVIER
DOI: 10.1016/j.physa.2013.10.029
关键词
Power grids; Reactance matrix; Efficiency; Power angle; Cascading failure
资金
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology (Chongqing University) [2007DA10512711401]
In recent years the rapid development of complex network theory has provided a new angle on the vulnerability analysis of a power grid. However, current analysis models are usually general ones that may ignore some specific features of power systems. In order to address the issue, this paper proposes an improved framework for the vulnerability analysis of power grids. Firstly, the traditional topology based graph model is improved by depicting a power grid as a weighted graph based on the reactance matrix. Secondly, the concept of load is redefined by using power angle information. Thirdly, the power flow constraints are adopted instead of the shortest path based flow scheme. Based on the proposed framework, an improved dynamic analysis model is developed. In addition, numerical simulations for both a general traditional model and the proposed model are investigated based on the IEEE 118-bus system respectively. The comparison demonstrates that the improved model is more effective and efficient for the vulnerability analysis of a power grid. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据