Research On Blockchain-based Transaction Method Of Distributed Energy Power Market

At present,the continuous penetration of distributed energy into the grid has been improving the preconditions for the rapid development of the energy Internet.So as to distributed generation to participate in power trading gradually and comprehensively,China has provided the latest policy guidance for distributed energy trading pilot.The current energy transactions have also begun to try to combine regional power grid,distributed generation and emerging technologies,but there are still many shortcomings.For example,they do not consider the balance of interests brought by the policy of "charging from the load side of the network fee" to the buyers and sellers in the trading market;Focusing on transaction mode and strategy,but ignoring the matching between transactions and security dispatching;The lack of the traditional trading center centralized database management data brought about by the trust between the various participants,between the main body and the trading center and other solutions.In view of the above deficiencies,this article from the market supply and demand imbalance situation elaboration,Network fee approval has been considered in automatic matching transactions,trade and security scheduling matching three Angle automatically deal making model is established,and design the model represented by the allotment of energy trading mechanism of intelligent contract,will be deployed in the etheric lane private block chain test.The main work of this paper,as well as the design and technical improvements are as follows:(1)A method for dividing short-term supply and demand imbalance in distributed energy trading market is proposed,and four kinds of supply and demand imbalance relations are expressed by mathematical method.This is an extension of the traditional unbalanced relationship between supply and demand,and it improves the partitioning method and makes it suitable for the distributed energy trading market with the characteristic of floating automatic matching interval.The results show that the proposed method can reflect the changing trend of the interests of buyers and sellers in different situations of the imbalance between supply and demand in the trading market.(2)This paper proposes an automatic matching model of distributed energy price limit trading,which includes the double approval of network fee and trading volume.The proposed model is mainly improved on the automatic matching model of limit trading based on the traditional continuous two-way auction trading mechanism.Introduced the network fee approval,"a specific number of existing orders triggered matching" to replace the traditional continuous two-way auction trading mechanism of "the highest purchase price is greater than the lowest selling price triggered matching";In consideration of the matching between trading and dispatching,through the real-time information flow feedback check of the bidding quantity of the dominant party and the security dispatching constraint of the energy network,in the automatic matching and matching process,the continuous correction is made to obtain the restricted tradable volume of the dominant party within a single matching interval.The limited trading volume not only conforms to the safe scheduling of energy network,but also meets the requirement of balance of market interests.The experiment results show that the proposed model is able to reflect the principle of nearby trading encouraged by the policy,and greatly balance the interest demands of buyers and sellers under the situation of unbalanced supply and demand in various markets.(3)A smart contract for the allocation of energy trading mechanism represented by the automatic matching trading model is designed and deployed in the Ethereum private chain.The Ethereum private chain is linked to the client database with the Ether.js interface,and the visualization of the energy trading process is realized in the front end.