A Microgrid Power Trading Method Based On Blockchain And Cooperative Game Model Under Security Constraints

Aiming at the drawbacks of the traditional centralized transaction mode in dealing with high-frequency and small-volume microgrid group electricity transactions, such as high operating costs and insecure information, a microgrid electricity transaction method based on blockchain and game model under security constraints is proposed. Firstly, a secure microgrid power trading architecture based on blockchain technology is proposed, which uses blockchain to complete the authentication of information of both parties in the transaction and the Shapley value method of cooperative game to customize the user transaction tariffs; secondly, the user node computation scheme is examined in terms of security to improve the security of the order transaction. Finally, the credit evaluation mechanism and matching mechanism applicable to the main body of the microgrid power transaction are designed, and the credit-price matching mechanism enables the user and the power company to match the most suitable trading object and complete the power transaction. The experiments show that compared with the comparison method, the average transaction prices are the lowest in the 00:00-24:00 time period. Therefore, the designed trading mechanism can effectively realize the power trading between users, and can ensure the fairness of benefit distribution while enhancing the users' benefits.