基于残差符号信息识别残差污染  

IDENTIFICATION OF RESIDUALS CONTAMINATION BASED ON SIGNS OF MEASUREMENT RESIDUALS

作　　者：李碧君[1] 薛禹胜[2] 顾锦汶[2] 韩祯祥[1] 

机构地区：[1]浙江大学,杭州310027 [2]电力自动化研究院,南京210003

出　　处：《电力系统自动化》2000年第5期5-8,共4页Automation of Electric Power Systems

基　　金：国家重点基础研究专项经费资助 !( G19980 2 0 3 );国家电力公司科技项目! ( 1999SKPJ0 10 -2 0 )

摘　　要：残差污染的存在对正确检测与辨识坏数据的危害很大,而用一种统一的方法,根据量测残差识别出残差污染,从而准确地检测与辨识坏数据一直非常困难。文中基于残差符号信息研究状态估计中的残差污染问题,探讨了基于残差灵敏度矩阵和残差符号判断存在严重的残差污染的可能性,在此基础上,提出了利用残差符号信息识别严重的残差污染的方法,用简单的图示直观地描述了这一方法。IEEE30节点系统上的试验证实了所提出的方法提高了检测与辨识坏数据的准确性。The existence of residual contamination is harmful to detecting and identifying bad data in power system state estimation.It is difficult to identify various residual contamination using the same method according to the measurement residual. Based on residual sensitivity m atrix and signs of residuals,this paper presents a new method to determine the possibility of existence of the worst residual contamination. Then a new method is presented to identify the worst residual contamination based on signs of measurement residuals.Test on IEEE3 0 bus system confirms that the proposed method improves the veracity of detecting and identifying bad data.

关 键 词：状态估计 残差污染 识别 残差符号信息 电力系统 

分 类 号：TM732[电气工程—电力系统及自动化]