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Analysis of reliability for relay protection systems in smart substation
Author(s): 
Pages: 58-66
Year: Issue:  6
Journal: Relay

Keyword:  smart substationrelay protectionreliability block diagramsensitivityreliability;
Abstract: 基于通用设计建立220 kV智能变电站继电保护系统不同采样跳闸方式的典型结构,运用可靠性框图法构建智能变电站继电保护系统完备的可靠性评估模型并进行定量分析.采用概率灵敏度和元件灵敏度分别评估“直采直跳”模式下继电保护系统的元件灵敏度和重要度.前者给出了继电保护系统的薄弱环节,为优化系统设计提供参考;后者揭示了系统元件的重要度,指导系统运维.研究结果对智能变电站继电保护系统的设计、运维和发展具有借鉴意义.
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