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A Method for Modeling and Evaluation of The Security of IES

This paper proposes a vulnerability assessment method, which comprehensively considers the physical layer coupling characteristics of the integrated energy system, the information flow transmission characteristics of the information layer, the impact of the attack on the physical layer and information layer, and the limitation of attack resources which can be used to evaluate the fragile nodes in the integrated energy network and therefore, to make the deployment and protection of resources more precisely. A comprehensive energy system of three subsystems (power grid, thermal network and gas network) at the regional level is given to verify the effectiveness of the modeling method and vulnerability point evaluation method is studied as well.