Optimal Dispatch of Interconnected Heterogeneous Multi-microgrids System Considering Electricity-heat-carbon Trades Based on Non-zero-sum Game
The scale of microgrids increases sharply with the rising of the proportion of new energy penetration,but due to the lack of flexible energy transferring mechanisms,the optimization effect of low-carbon dispatching for individual microgrids is limited.It is of great significance that the structural differences of heterogeneous microgrids are utilized to make the energy flowing in the dual dimensions of space and time,so that the reduction of carbon emissions of renewable energy power systems can be promoted.Therefore,considering the differences in the functional areas among the microgrids,an optimal dispatch of multi-microgrid systems considering electricity-heat-carbon trades is constructed by adopting the Nash's negotiation ideas.Firstly,according to the differences in functional microgrids,an operation framework of multi-microgrids system based on the residential,commercial and industrial microgrids is constructed.Secondly,taking into account the load characteristics of different microgrids,a demand-response model considering the alternative of electricity and heat loads is built.Finally,based on the Nash's negotiation,and combined with the alternating direction multiplier method and the commercial solver,a mutually beneficial and win-win trading strategy of electricity,heat and carbon among multi-microgrids is reached.The case analysis verifies that the proposed method is able to comprehensively improve the environmental and economical benefits of the multi-microgrids under the premise of realizing privacy protection.
multi-microgrid systempeer-to-peer energy tradingcarbon quota tradingdemand responseADMM
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