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电网技术  2010 

基于模糊聚类理论的电网故障元件定位

, PP. 188-193

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Abstract:

利用保护动作信息量的传统故障定位方法是在保护动作之后完成故障定位的,在时限上难以满足广域自适应后备保护的要求,特别在站用直流电源消失的情况下,传统方法很难定位出原发性故障。针对上述问题,作者基于广域测量系统(wideareameasurementsystem,WAMS)的实时量测信息,提出应用模糊C均值法对广域信息数据构成的样本进行最优分类,从而定位出故障元件和故障区域的方法。仿真结果表明,该方法不仅能快速、准确地定位出原发性故障,同时能够界定出受故障影响明显的区域,而且满足广域自适应后备保护的时限性要求。

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