Vulnerability analysis of power system based on dynamic regional electrical coupling

被引：4

作者：

Zhou, Ming ^{[1
]}

Li, Jingyu ^{[1
]}

Wu, Shunyu ^{[1
]}

Liu, Siwei ^{[2
]}

Li, Gengyin ^{[1
]}

Liu, Jianqin ^{[2
]}

机构：

[1] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China

[2] State Grid Econ & Technol Res Inst CO LTD, Beijing, Peoples R China

来源：

INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS | 2019年 / 29卷 / 01期

基金：

中国国家自然科学基金;

关键词：

coupling tracking rank algorithm; power system; regional electrical coupling; vulnerable nodes; CASCADING FAILURE ANALYSIS; COMPLEX NETWORK; NODES;

D O I：

10.1002/etep.2671

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Power systems play a crucial role in people's lives. To ensure the safety of this system, a vulnerability analysis of the power system is carried out to identify the vulnerable nodes in the grid. First, the electrical coupling relation between neighbor nodes is designed according to the equivalent electrical impedance of power transmission lines, and the regional electrical coupling coefficient, which reflects a node's ability to affect its neighbor nodes' operation state, is defined. Then, considering both the level and direction of power flow on power transmission line, the regional interdependency efficiency of the node is presented to improve the regional electrical coupling coefficient mentioned above. To take into account the dynamic propagation of electrical state coupling among nodes in the power system, a coupling tracking rank algorithm is proposed to identify the correlation between the failure of nodes and transient state of the power system. The proposed method is validated using the IEEE 39-BUS test system. Simulation results demonstrate that the nodes that affect the transient stability of power system most when they fail can be identified effectively.

引用

页数：12

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