Interruptible load management (ILM) is one of the demand response incentives. It’s good to the reliability of the power system. During the peak time of the power system,there are always network congestion constraints. In this paper,based on the active power dispatch an optimal IL purchasing model including hybrid generation,network and demand side constraints is presented. This model not only puts emphasis on the network congestion capacity constraint but considering the influence of pre-informed time and the interruption duration period and the geographical position on network loss. The Binary version of the Particle Swarm Optimization (BPSO) method is used to solve this model. And the simulation result shows that the model is fit for using IL in peak load congestion constrained dispatch in developing power market.
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