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电网技术  2014 

基于等效电量函数法的含DG配电网接线方式可靠性分析

DOI: 10.13335/j.1000-3673.pst.2014.08.028, PP. 2200-2206

Keywords: 等效电量函数法,分布式电源,配电网,接线方式,可靠性

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Abstract:

在传统等效电量函数法的基础上,引入了DG的出力模型与负荷的持续曲线模型,并以此计算出含DG的负荷的失负荷概率与系统失负荷电量期望值。再与常见的配电网网架结构相结合,将分布式电源(distributedgenerator,DG)等效为具有等效故障率的常规电源,进而计算线路可靠性指标。算例比较了常见接线方式接入DG后的可靠性指标变化,分析了DG容量与模型参数对等效故障率的影响,探讨了接入DG后不同配电网接线方式可靠性的改善情况,分析了通过选择接线方式或配置合理的DG容量满足可靠性要求的可行性。

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