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Content Provider | IEEE Xplore Digital Library |
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Author | Xu, Lin Wang, Xiuli Wang, Xifan |
Copyright Year | 2010 |
Description | Author affiliation: School of Electrical Engineering, Xi'an Jiaotong University, 710049, China (Xu, Lin; Wang, Xiuli; Wang, Xifan) |
Abstract | Electric betweenness is introduced to study the cascading-failure mechanism in power system. Firstly, impact of node removals with different electric betweenness is studied upon the connectivity and transmission efficiency of power system. Then, active defense based on generated betweenness is presented to enhance the robustness of power system in cascading failures. Because it is based on Kirchhoff's and Ohm's Law, the presented model is more reasonable than existed ones where power energy is supposed transferred only along the shortest paths between nodes. Simulation on IEEE-39 system shows the system is sensitive to single-node fault when its betweenness tolerance is lower, while improving such tolerance makes the system more robust. But nodes with high electric betweenness are still essential for the vulnerableness of power system. However if very few nodes with high generated betweenness are removed intentionally as active defense at very beginning of the single-node fault, the following cascading failures can be restrained obviously for the remained system with little economic cost. Conclusions are also confirmed by the analysis on Northwest China power grid. |
Starting Page | 1 |
Ending Page | 6 |
File Size | 473250 |
Page Count | 6 |
File Format | |
ISBN | 9781424465491 |
ISSN | 19449925 |
e-ISBN | 9781424465514 |
e-ISBN | 9781424483570 |
DOI | 10.1109/PES.2010.5589583 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2010-07-25 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Power system protection Power system faults Power grids Robustness Generators Power system dynamics Power system blackout Active defense Cascading failures Complex networks Electric betweenness |
Content Type | Text |
Resource Type | Article |
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