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Interval failure probability assessment of sensitive load due to voltage sags
Author(s): 
Pages: 37-42
Year: Issue:  17
Journal: Relay

Abstract: 敏感负荷电压耐受能力分布规律具有不确定性,现有基于确定的点值估计法在实际样本较少时难以得出准确结果.提出估计敏感负荷电压耐受能力不确定性分布的区间概率评估法,用区间概率分布描述负荷耐受能力的不确定性,得出设备失效可能性区间概率值.利用实验测得的PC机电压耐受能力样本,以IEEE-30节点系统为例进行仿真,证明该方法较点值评估法更好地反映了实际情况,结果可信度和精确性较高,可应用于工程实际.
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