Failure analysis on electric power system in our country based on power law

作     者：Yiguang Hong Xiaofeng Weng Ancheng Xue Shengwei Mei (Institute of Systems Science, Chinese Academy of Sciences, Beijing 100080, China) (Department of Electrical Engineering, Tsinghua university, Beijing 100084, China) 

会议名称：《第二十三届中国控制会议》

会议日期：2004年

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 

关 键 词：Power systems Blackout Power law Estimation aigoritnm 

摘      要：This paper is to employ power law approach to discuss self-organized criticality and related dynamical features of power systems. We use two estimation algorithms called scaled window variance (SWV) and rescaled range statistical (R/S) to analyze the data of blackout events during 1988-1997 of power systems in China. From the analysis we found that the data from 1994 to 1997 show the autocorrelation of the blackouts vs. time lags. Moreover, we find the power law distribution in blackout probability vs. event size.