Energy-Blockchain-Based Design Of Distributed Electricity Transaction System

The de-centralization of blockchain technology will generate many new economic and business models.It is considered as a solution that can be applied to distributed power in the Energy Internet for on-site consumption.At present,the application of the energy blockchain is still in the stage of proof of concept.Most of the discussions are focused on the business model.There is no thorough research on the combination of the blockchain and the nature of the energy Internet itself.Based on this,this paper proposes the bottom architecture model of energy blockchain based on Energy Internet and blockchain technology,and designs a distributed electric energy trading system based on Energy-Blockchain technology.In this paper,the Energy-Blockchain architecture is disassembled into a seven-layer structure,which is improved layer-by-layer according to the characteristics of Energy Internet,and the improvement of each layer is systematically described.As for the consensus layer,the PoS consensus mechanism that is more suitable for energy scenarios is screened.According to Ouroboros technology,a consensus mechanism which is the Proof of Power Output and Load to Energy Internet is designed.This mechanism realizes the accountant's election and reaches a consensus on the whole network.And The Poisson distribution verifies the security of this mechanism.The results of the example show that the Energy-Blockchain network can not be tampered with less than 50%of the malicious nodes possessing rights.On the basis of the design of consensus layer,this paper considers the indexes of scalability,decentralization and security of energy blockchain,improves the network layer and proposes the operation of local blockchain based on cross-link mechanism Mode,the entire network in accordance with the frequency of power transactions network layer partition.The dynamic partitioning method based on non-dominated sorting genetic algorithm is designed.Under the premise of decentralized index,the scalability index of Energy-Blockchain is optimized by adjusting the partition of nodes in the network.At the same time,the dynamic partition algorithm makes up for the problem that the nodes in the consensus layer occupy more than 50%of the shares and threaten the network security.The example shows that the Energy-Blockchain can realize the multi-party high-power,low-latency power transactions,and guide the demand side resources and distributed energy sources to flexibly balance supply and demand so as to ensure the economic and safe operation of the distribution network.