Design Of User Interaction Method And Demand Response Strategy For Microgrid Based On Smart Contract

Energy management has always been a very important field in our country,committed to the rational and efficient use of energy as far as possible.Demand side response is an important means of energy management.At present,there are still some problems in the efficiency of centralization and interaction mode.Therefore,this paper studies the supplydemand relationship and interaction behavior between users and power producers in microgrid,as well as the demand side response strategy in power market environment,The technical means is to introduce the alliance chain and smart contract in the blockchain technology stack,in order to solve the problems of centralization,lack of trust,game efficiency,high complexity of supervision of central institutions,accuracy and satisfaction in the implementation of demand response strategy in the microgrid power market with strong centralization system.In the construction of the file system of the whole alliance chain,by using IPFs and TCFs for reference,using distributed technology,information fragmentation technology,asymmetric encryption technology,hash value search and other means,a distributed file system and dual block chain architecture more suitable for private information storage of microgrid power market are proposed for the first time.Through the first level consensus of the regional whole node circle and the second consensus of the whole microgrid,not only the security is guaranteed,but also the consensus efficiency is further improved.This paper also makes simulation test on the processing delay and read-write throughput of each step in the read-write operation of the file system based on blockchain.Based on the blockchain system,the detailed operation process of how to develop a more accurate response scheme to the needs of residents is given.At the same time,the day ahead market bidding strategy based on more transparent market information and more efficient bidding interaction mode is also proposed,Compared with the traditional price guidance,the price guidance mechanism based on smart contract can guide the clean energy to get the dominant position in the market,and the users who are willing to pay high price will have the priority to enjoy the useful power rights,so as to create greater social welfare.By comparing the traditional power market game process simulated based on the actual data with the power market game process with the introduction of smart contract,it is proved that smart contract has significant results and great significance in optimizing the response speed and information transparency of transaction game.Through the linear regression analysis of multiple factors of multiple groups of household users,the regression model of users’ subjective demand response satisfaction is obtained.Finally,by using the analytic hierarchy process(AHP),an evaluation method in system engineering,the multi-dimensional and multi index scientific comparison is made between the micro grid power market weak centralized trading system with smart contract optimization and the traditional strong centralized trading platform,It makes the application of smart contract in microgrid power market more convincing.