Research On The Design Of Distributed Trading Mechanism Of Regional Integrated Energy Market

With the increasingly severe energy crisis and environmental problems,vigorously developing the integrated energy industry has become the consensus of major countries in the world,and a good market mechanism is the key to ensuring the prosperity of the integrated energy industry.In addition,due to the fact that a large number of energy coupling devices have been put into operation,the linkage between different types of energy markets has been strengthened,and the traditional mechanism design based on a single energy market has been difficult to apply.Moreover,in practice,there are deep transaction barriers between different types of energy,and it is difficult to carry out centralized optimization of transactions.Therefore,it is of great significance to focus on the research on the mechanism design of the distributed trading in the regional integrated energy market!This paper firstly sorts out the method and theory of mechanism design.Considering the actual situation of the regional integrated energy market,a price mechanism design method and a market member benefit distribution mechanism design method are proposed,and they are respectively used to design distributed integrated energy trading price mechanism,distributed integrated energy agent mechanism and integrated energy P2 P trading mechanism,the specific research work is as follows:For the integrated energy suppliers and consumers with independent transactions ability,this paper designs a price mechanism for distributed integrated energy transactions.First,this paper establishes a mathematical model of integrated energy suppliers and consumers,and considers carbon emissions in the integrated energy production process.Secondly,based on the linear pricing function,this paper constructs a non-cooperative game model between integrated energy suppliers and consumers,and rigorously proves the properties of the game model.Next,this paper uses the distributed gradient method to iteratively calculate the distributed transaction price.Finally,the effectiveness of the proposed mechanism is verified by numerical example simulation,and the impact of integrated energy demand and carbon price changes on the distributed integrated energy transaction price is revealed.For the small and medium-sized users including prosumers whose roles are price takers,this paper designs a distributed energy agent mechanism that motivates them to share integrated energy.First,this paper establishes a mathematical model of integrated energy agents and small and medium-sized users from the perspective of cooperative game,and considers the uncertainty of renewable energy output.Secondly,this paper realizes distributed decisionmaking between agents and small and medium users based on ADMM algorithm.Then,in order to realize the fair distribution of social welfare,this paper proposes the contribution rate index of integrated energy agents and users and its quantification method.On this basis,the asymmetric Nash bargaining theory is used to design the benefit distribution mechanism of integrated energy agents and users,and the analytical expression of the payment function is deduced.Finally,the effectiveness of the proposed mechanism is verified by numerical example simulation.For the integrated energy prosumer cluster,taking the typical prosumer cluster integrated energy microgrid cluster as the object,this paper designs an integrated energy P2 P trading mechanism.First,this paper establishes a mathematical model of integrated energy microgrid cluster considering integrated demand response from the perspective of cooperative game.Secondly,in order to adapt to the completely decentralized P2 P structure,this paper proposes a decentralized iterative method,derives the iterative formula for integrated energy microgrid operators,and designs the information flow in the iterative process.Following the contribution rate analysis method,this paper proposes an integrated energy microgrid operator contribution rate index and its quantification method,and the benefit distribution mechanism is further designed based on the asymmetric Nash bargaining theory,and the analytical expression of the payment function under the P2 P structure is deduced.In addition,this paper proposes a payment chain settlement method to achieve efficient settlement of fully decentralized P2 P transactions.Finally,the effectiveness of the proposed mechanism is verified by numerical simulation.Only protecting the reasonable interests of market members through market mechanisms,their enthusiasm to create value will be motivated.This paper studies the market mechanism of distributed integrated energy trading from two aspects of theory and application,and expects the work of this paper to provide reference for the construction of China’s integrated energy market.