This article studies the common redundancy components of digital substations and provides two different retrofitting methods:centralized backup and interleaved backup,and comprehensively compares the reliability and economy of different configuration methods.The analysis results show that both of these improved methods are more reasonable and effective than several existing classical methods,and have significant application value;The secondary structure protection system,due to its high reliability,does not require additional network configuration for individual unit protection.
关键词
数字化变电站/冗余体系结构/可靠性/经济性评估
Key words
digital substation/redundant architecture/reliability/economic evaluation
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