【摘要】 连续潮流法(continuation power flow,CPF)是静态电压稳定分析的一个基本工具。针对常规连续潮流法在处理不平衡功率上的不足,建立基于动态潮流方程的连续潮流模型,称之为动态连续潮流模型(dynamic continuation power flow,DCPF)。作为一种系统化的方法,DCPF合理地分配了系统不平衡功率,解决了常规连续潮流计算结果依赖于平衡节点选择的问题,提高了电压稳定评估的精度。IEEE-39节点和实际省级电网的算例结果表明:动态连续潮流模型计算结果不依赖于平衡节点的选择,计算速度可满足在线运行的需要。更多还原

【Abstract】 The continuation power flow(CPF) is a basic tool for static voltage stability analysis.To overcome the disadvantage of treating power unbalancing in the traditional continuation power flow,an improved continuation power flow based on dynamic power flow equation,called as dynamic continuation power flow(DCPF),was proposed.Accuracy of voltage stability assessment can be improved by the proposed method through distribution of the power unbalance among generators properly,of which results are not dependent on the selection of slack bus just like normal CPF.Tests on IEEE-39 system and a real-life provincial system show that the results of DCPF are independent with the selection of slack bus,and the computing speed can meet the needs of on-line operation.更多还原