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电网技术  2007 

基于连锁故障搜索模型的降低电网发生连锁故障风险的方法

, PP. 19-22

Keywords: 连锁故障,风险指标,隐藏故障,负载率,关键线路

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Abstract:

目前由简单扰动引起的电力系统连锁故障是威胁大规模电网安全稳定运行的一个重要因素。为找出降低电网发生连锁故障的风险的有效方法,使用连锁故障搜索模型在IEEERTS96系统上分析了关键线路的故障率、隐藏故障概率、关键线路传输功率上限以及采取新的控制措施对连锁故障风险指标的影响,结果表明降低关键线路的故障率、在某些节点间增加1回线路和采取新的控制措施是比较有效的降低连锁故障的风险的方法,而降低隐藏故障发生的概率对系统的风险指标影响不大。

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