Stability Evaluation of Power Dispatching Topology Structure Based on Node Importance Analysis

To meet the demand for stability assessment of power system topology, an importance analysis method integrating electrical and topological characteristics of nodes is proposed. By constructing electrical importance indicators of active power output and voltage stability of nodes and determining the weights based on information entropy theory, a fused importance assessment model is formed. The effectiveness of the method is verified based on the IEEE 30-node system. The results show that the fused model can more accurately identify critical nodes.