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电网技术  2006 

配电网电压稳定性研究

, PP. 31-35

Keywords: 配电网,电压稳定性,电压稳定指标,分析

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Abstract:

基于配电网潮流解的存在性,提出了一种能够反映负荷分布与电压稳定性关系的电压稳定判据,即第一类电压稳定判据,指出了第一类电压稳定判据是配电网电压稳定的必要条件但不是充分条件,定义了配电网电压稳定裕度和电压抗扰动安全距离等指标,分析了基于负荷–电压特性的第二类配电网电压稳定判据存在的问题,得出了配电网电压稳定应该满足2类电压稳定判据的结论。仿真计算结果验证了上述分析的正确性,说明上述电压稳定指标确实可以反映配电网的电压稳定性与抗扰动能力。

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