This essay introduces a subassembly device functioning as a "immune system"that is used in the construction of the digital substation in the smart grid,which can help the grid realize continuous online self-assessment,forecast latent dangers in the grid,and evaluate the integral health status of the grid.%介绍一种用于智能电网数字化变电站建设的"免疫系统"组件装置,它能协助电网连续不断地在线自我评估、预测电网的事故隐患,并评价电网整体的健康水平。
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