Failure analysis on China power grid based on power law |
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| Authors: | Xiaofeng WENG Yiguang HONG Ancheng XUE Shengwei MEI |
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| Affiliation: | State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; Institute of Systems Science, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | This paper is concerned with the mechanism of blackouts in China power system from the viewpoint of self-organized criticality. By using two estimation algorithms of scaled window variance (SWV) and rescaled range-statistics R/S), this paper studies the blackout data in China power system during 1988-1997. The result of analysis shows that the blackout data of 1994-1997 coincides well with the autocorrelation. Furthermore, it is found that the function of blackout probability vs. blackout size exhibits power law distribution. |
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| Keywords: | Power system Blackout Power law Estimation algorithm |
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