Reliable power network can provide reliable operation of electric power for dispatching communication security, due to many key network nodes external connectivity in the electric power communication network has only one path, so once the link damage because of emergencies, these networks because of the failure of nodes (or communication link) and power operation scheduling of exception can occur easily, thus to cause great damage to the safe operation of the whole power network. In order to improve the robustness of system in this case, this paper designed a new optimization algorithm based on the equivalent network to simplify the real network and the network analysis.

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