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变电站主接线方式可靠性评估与方案优选

, PP. 441-446

Keywords: 变电站,电气主接线,可靠性评估,方案优选,贝叶斯网络

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Abstract:

针对传统可靠性评估方法在变电站主接线可靠性评估中的局限性,用贝叶斯网络法对变电站主接线进行可靠性评估且对其方案优选.为此,选取两种目前常用的主接线方式作为应用实例,首先针对系统进行功能和结构分解,获得系统各功能模块的逻辑关系图,然后确定从发电机到负荷端的最小路径,并以此为过渡建立以各功能模块为节点的贝叶斯网络,在此基础上计算出两种主接线方式的系统可用度,并找到两种主接线方式在可靠性方面的薄弱环节.计算结果表明,贝叶斯网络法既能帮助工程人员选择变电站主接线方式,还可指导今后变电站的维修工作,具有较大实际意义.

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