Game Operation Optimization Strategy Of Multiple Integrated Energy Service Companies Considering Generalized Multi-source Energy Storage

At present,the problem of global fossil energy depletion and environmental pollution is becoming more and more serious.In order to realize the sustainable development of energy and improve the efficiency of energy utilization,the energy industry has gradually become a research hotspot.The integrated energy system integrates various energy forms,gives full play to the complementary characteristics of different energy types,and breaks the traditional mode of independent operation of each energy system.With the development of energy marketization,integrated energy service companies will replace the original energy network to provide users with a variety of energy services,which is of great significance to promote the transformation of energy service mode.Therefore,this paper mainly studies the operation optimization of integrated energy system considering generalized energy storage and the cooperative game operation strategy of multiple integrated energy service companies.The main work of this paper is as followsFirstly,various energy networks and main energy conversion equipment in the integrated energy system are modeled,and an integrated energy service company model including a variety of energy equipment is built.In order to further analyze the process of energy production and conversion in the integrated energy service company,the energy hub model of the integrated energy service company is established,and the input and output links of the integrated energy service company are described by using the energy hub model.A generalized energy storage model is established,which is composed of the actual energy storage components and the demand response to the change of price or incentive signal.Secondly,aiming at the operation optimization of the integrated energy system,the optimal operation model of the integrated energy system considering the power flow and natural gas network constraints is established.Considering the carbon emission problem of the equipment in the integrated energy system,the carbon trading mechanism of the integrated energy system is established,and an optimal operation strategy of the integrated energy system considering the generalized energy storage and thermoelectric decoupling technology is proposed according to the thermoelectric strong coupling operation condition of the cogeneration unit.The feasibility and effectiveness of the proposed model are verified by simulation analysis of two integrated energy systems.Finally,on the basis of the integrated energy system optimization operation model,considering the mechanism of multi-integrated energy service companies participating in energy trading,a multi-integrated energy service company operation optimization strategy based on cooperative game is proposed.Taking energy service companies as stakeholders,a Nash bargaining model of cooperative game among multiple integrated energy service companies is established.Through problem transformation,Nash bargaining model is transformed into two linear subproblems and solved sequentially by distributed algorithm.Finally,two simulation examples are given to verify that the proposed model and method can realize the cooperative game between service companies.