Conventional reliability analysis methods mainly focus on substation protections,leading to the problem of reli-ability redundancy and inadequate accuracy.Therefore a reliability analysis method for substation automation systems based on information physical interface matrix was designed.The method avoids the problem of reliability redundancy by extracting redundancy characteristics from substation automation reliability and analyzing the impact of functional redun-dancy and network redundancy on reliability analysis.It realizes reliability analysis of all individual components by calcu-lating automation reliability degree using information physics interface matrix,generating spatial state of system informa-tion layer components,and characterizing normal/abnormal states probabilities of each component.The proposed reliabil-ity analysis method was proved to have higher accuracy and deserve popularized application.
关键词
信息物理接口矩阵/变电站/自动化/可靠性分析方法
Key words
information physical interface matrix/substation/automation/reliability analysis method
维普
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