2014•Power System TechnologyRequires access

Assessment on Nodal Comprehensive Vulnerability Based on Operational State and Network Structure

Xu Han

Abstract

The research on power system vulnerability,which is regarded as the extension of power system security and stability,is of great significance. Based on real-time operation state of nodes and utilizing energy function model,state vulnerability assessment indicators are established. Considering network parameters of nodes,the electrical betweenness model is used to build structural vulnerability indicators. Considering both operation state and structural features,comprehensive vulnerability indicators are proposed to accurately position weak nodes in power system. The feasibility and practicality of the proposed indicators are validated by simulation results of IEEE 30-bus system.

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Key concepts: Vulnerability (computing), Betweenness centrality, Vulnerability assessment, Electric power system, Computer science, Reliability engineering, State (computer science), Stability (learning theory)