Contingency ranking for voltage collapse via sensitivities from a single nose curve
Contingency ranking for voltage collapse via sensitivities from a single nose curve
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DOI：
10.1109/59.744538
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发表时间：
1999-02
影响因子：
6.6
通讯作者：
S. Greene;I. Dobson;F. Alvarado
中科院分区：
文献类型：
--
作者：
S. Greene;I. Dobson;F. Alvarado
估计了线路停电时负荷裕度对电压崩溃的影响。首先通过延拓法计算出一个鼻形曲线，得到一个额定载荷裕度.然后，线性和二次灵敏度的负荷裕度，每一个意外的计算和使用来估计由此产生的变化，在负荷裕度。该方法在1390节点系统的一个关键区域和IEEE 118节点系统的所有线路停电上进行了测试。结果表明，有效的排序的意外和非常快速的计算的线性估计。
The change in the loading margin to voltage collapse when line outages occur is estimated. First a nose curve is computed by continuation to obtain a nominal loading margin. Then linear and quadratic sensitivities of the loading margin to each contingency are computed and used to estimate the resulting change in the loading margin. The method is tested on a critical area of a 1390 bus system and all the line outages of the IEEE 118 bus system. The results show the effective ranking of contingencies and the very fast computation of the linear estimates.