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Multi-objective Optimal Scheduling of Integrated Energy System Considering Electricity, Heat and Natural Gas Energy Network

In this paper, the integrated energy system considering electricity, heat and natural gas energy network is taken as the research object. Firstly, the multi-heterogeneous sub-network model of integrated energy system including natural gas network, electric network and heat network is established based on information of geographic topological structure. Secondly, the typical coupling device model of integrated energy system including electric boiler, combined heating and power system, supplementary combustion biomass boiler and solar collector are established. Then, based on the maximization of economic and environmental benefits, the multi-objective operation optimization model is established. Finally, the effectiveness of the proposed model and method on the operation optimization of integrated energy system is verified by an example analysis. The proposed optimization scheduling strategy can provide reference for multi-objective operation optimization of integrated energy system, and provide theoretical guidance for optimize operation, comprehensive scheduling, and planning and design of integrated energy system, optimal allocation of multi-types of resources, and multi-energy cooperation and mutual benefit.