Research On Micro-grid Power Transaction Based On Consortium Blockchain

It turns out that when one combines hash functions and hash tables with cryptographic techniques,the resulting cryptographic hash function is directly applicable to establishing security and privacy protocols required for blockchain ledger technologies.Blockchain technology is still in its infancy and there are several technology gaps,which could limit its adaptation in smart energy systems.Consortium blockchain technology is a feasible solution for the application of blockchain in various fields,and it is also a new exploration and new attempt by electronic technology service entities.Based on the consortium blockchain technology,this paper has researched and designed a small-scale microgrid trading platform,and carried out research on bidding mode trading strategies,a new consensus mechanism for reputation scoring,and differentiated evaluation incentives.On the one hand,in the consensus layer of the blockchain,in order to meet the requirements of strong real-time interaction in the micro-grid,a consensus mechanism suitable for micro-grid energy transactions has been designed.First,based on the conventional proof of work mechanism in the Bitcoin blockchain,an improvement was made,and an evaluation mechanism for the node mining process was added.The comprehensive evaluation of other nodes as a reputation factor adjusts the mining difficulty of each node to varying degrees,considerably reducing the mining difficulty of honest nodes and increasing the mining difficulty of abnormal nodes,which is conducive to improving the efficiency of block production and ensure real-time interactivity.Moreover,since enormous and high-quality evaluations can exert real value,this article designs a differentiated incentive method for the previous evaluation mechanism,and quantifies the contribution of each evaluation in an intelligent form,and rewards the authors of this comment according to the contribution.This method has stimulated more and more high-quality reviews and contributed to the fairness of the adjustment of the system’s mining difficulty.On the other hand,after studying various market trading models,we found a bidding trading strategy suitable for blockchain-based microgrids.In this model,buyers and sellers can freely set prices and bid,and use greedy algorithms to maximize matching and completing the clearing according to the pricing of both parties to the transaction,which will bring the buyer and the seller,giving the transaction party more freedom.In the process of sorting buyers and sellers separately,a carbon emission right factor is added to represent the degree of environmental protection,which reduce the probability of sorting conflicts.Finally,a simulation example is carried out to prove that the trading strategy proposed in this paper has better economic benefits than the traditional distribution network.