计及自动装置模拟的大电网在线静态安全分析

传统省级以上电网在线静态安全分析软件未考虑安全自动装置动作的影响,导致计算结果不能准确反映系统实际情况。文中提出了一种计及自动装置模拟的大电网在线静态安全分析的实用方法。采用基于启动条件集和动作行为集的自动装置自定义建模,有效减轻了模型维护的工作负担;通过局部网络拓扑获得自动装置动作后发生变化的逻辑节点,引入因子表快速...

Online Static Security Analysis Considering Automatic Device Simulation for Large Power Systems

In traditional online static security analysis software for province level or larger power systems,the action influence of security automatic devices is not considered.Therefore,in some cases,the analysis result cannot correctly reflect the real situation of power system.A novel practical method of online static security analysis considering automatic device simulation for large power systems is put forward.The model maintenance burden can be considerably alleviated through custom-modeling based on adopting condition and action groups.The accurate analysis result and fast calculation speed can be well achieved by using local network topology to get changing logical nodes of automatic device post-action and partial matrix re-factorization to modify the factor table.The simulation results of practical power network show that the proposed approach can be applied online in large power systems.