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电网技术  2006 

应用临界失稳模式预测判断解列面的新方法

, PP. 44-48

Keywords: 电力系统,临界失稳模式,解列断面

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Abstract:

为故障后临界失稳的电力系统确定解列断面以平息系统振荡可以防止系统完全崩溃。文章首先在基于流形变换的方法预测电力系统临界失稳模式的基础上,用预测到的临界失稳模式对系统中的发电机进行分群;然后将系统接线图转化为节点带权的无向图,用图论的方法寻找应切除的支路集合,使得每个机群的不平衡功率最小,从而构成系统的解列面;最后采用新英格兰10机39节点系统作为算例,用预测到的临界失稳模式搜索、判断系统故障后的解列面。后续仿真表明,按上述方案解列系统能够尽快平息各机群的振荡。

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