摘要
为了快速有效的确定电网的脆弱节点,提出了一种利用多种指标综合筛选电力系统脆弱节点的方法。首先通过绘制出系统各负荷节的PV,QV曲线,求取各负荷节点的电压变化指标和无功功率裕度指标;随后将这两种指标进行综合,用于判断电力系统脆弱节点。通过设置不同的权重系数可以实现不同情况下的脆弱节点判断。并将此方法应用于实际电网,将得出的脆弱节点分析结果与通过传统的模态分析法得出的结果进行比较,证明了此方法在筛选系统脆弱节点方面的正确性与有效性。
In order to quickly and effectively determine the node weak of power network.Presents acomprehensive method that use a variety of indicators to screen the weak nods of electric power systems. First,by drawing out the PV,QV curve of the load nodes to strike each node voltage stability margin andreactive power margin index.Then integrated these two indicators to determine the weak node of power system.By setting different weighting coefficients can be achieved to judge weak nodes under different circumstances.Then applied this method to actual power systems.Compare the results of weak nodal analysis from comprehensive method and traditional modal analysis method,proves the correctness and validity of this method.in filter the weak nodes of power system.
出处
《电子测试》
2015年第3X期60-62 33,33,共4页
Electronic Test
关键词
电压变化指标
无功功率裕度
综合模型
脆弱节点
voltage change indicator
reactive power margin
integrated model
weak node
