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电网技术  2014 

采用关键PMU量测的含风电系统电压稳定快速评估方法

, PP. 6-10

Keywords: 广域测量系统,电压稳定性,最小模特征值,关键节点,风电

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Abstract:

基于相量测量单元(phasormeasurementunit,PMU)的电压稳定指标多为局部指标,无法全面快速评价含风电电力系统的电压稳定性。提出了一种基于关键局部PMU信息的电压稳定评估方法。该方法利用前一时刻最小模特征值和已有的雅可比矩阵信息,结合局部PMU信息,即关键节点的电压和相角变化,快速获得当前时刻的最小模特征值,实现电压稳定的快速全局评估。对含风电的10节点系统和某地区实际电网的仿真验证了该指标的有效性。

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