With the rapid development of microgrid technology, more attention has been attracted to the benefits of economic operation while ensuring the security and stability of microgrid. This paper proposed a multi-objective economic operation method considering demand response for microgrids with air-condition (AC) clusters. Firstly, a dynamic price mechanism which better reflects the practical operation status of system is presented. Secondly, flexible loads and air-condition are taken as the demand response resources for economic dispatch, and consumer profit model and AC operational cost model are established, where a set of practical constraints such as consumer comfort are considered. Then, the generation model is built to minimize the generation cost for generation side. Finally, microgrid simulation platform is established in MATLAB/Simulink and case is designed to evaluate the performance of the proposed method. Result shows that consumer profit increased by 69.2% and the operational cost of AC cluster decreased by 18.2%with consumer comfort assured, while the generation cost is minimized.
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