复杂电网的分层解耦潮流计算方法及分析

Layer-decoupled Power Flow Algorithm for the Complex Power Grid and Relevant Analyses

基于复杂电网中环网与辐射网络并存的特点,采用基于逆流拓扑分层搜索的解耦潮流算法对复杂电网潮流进行计算。通过对IEEE-300节点系统与重庆电网的仿真分析,验证本算法的正确性以及其收敛性与计算速度的优势;通过对IEEE-118节点系统的解环分析,结果显示复杂电网的环网率越低、辐射节点越多,本方法速度优势越明显。

As looped and radial networks coexist in the complex power grid, the layer-decoupled power flow algorithm based on the countercurrent-layered topological search method is applied in the computation of the power flow of the complex power grid. Simulated analyses of the IEEE-300 node system and Chongqing power grid verify its accuracy, astringency and higher computation speed. The loop-breaking analysis of the IEEE-118 shows that the algorithm en- joys a higher speed when there are fewer looped networks and more radial nodes in the complex power grid.