Abstract. As large-scale electric systems getting more complicated, the risk probability is also undergoing a higher tendency. This paper presents a novel risk analysis method from the complex network view. Through studying the topological structure characteristics of the electric system network, two principles are gave to assess the sensibility of the system component as network nodes. The failure diffusion intensity considering both the prior probability knowledge and the inherent safety characteristics of the system network is defined, and the failure grade diffusion process is analyzed. With the proposed method, the vulnerabilities of the system can be identified efficiently.
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