30·60 Carbon peak-carbon neutrality targets require the power industry to achieve energy conservation and emission reduction,green economy and sustainable development,increase the penetration rate of renewable energy generation,and establish a new power system with new energy as the main body.How to develop the gridconnected consumption mode of distributed new energy,how to realize the overall management of different types of electricity,and how to optimize the electricity trading mode and energy supply are the key points that need to be studied at present.In order to solve the above problems,this paper adopts mathematical model and game theory(Stackelberg game and cooperative game),taking microgrid power system as the research object,proposes to apply block chain technology to microgrid power transaction,study information interaction and power pricing strategy of power market,and optimize the transaction mechanism of microgrid power market.To provide conditions and guarantee for new energy generation to participate in the electricity market,and help achieve the carbon peak and carbon neutrality goal.To be specific,first of all,block chain is applied to microgrid for fit analysis,SWOT analysis and transaction model construction,to analyze the power market choice of distributed subjects,distributed energy synergy based on block chain and power demand after block chain application.On this basis,the power transaction based on block chain technology is proposed to improve the microgrid power market,the microgrid power transaction model and the corresponding mathematical model are explained,and the influence of block chain technology on the decision-making of the transaction subject is quantified.Stackelberg game theory is applied to solve the interaction strategy of electricity price and quantity in microgrid power market when each market player is pursuing the optimal goal.Then,a distributed power market including information interaction and decision optimization is established,and a collaborative optimization method of distributed energy in microgrid based on block chain is proposed to quantify the impact of the application of block chain technology on power transactions of power producers.At the same time,in order to reduce the subjectivity of decision makers,the prospect theory is adopted to establish the decision-making model under bounded rationality under the fluctuating market environment,and the influence of the psychological expectation and individual behavior preference of power producers on the decision-making of electricity trading is analyzed.Finally,MATLAB software is used for numerical experiments and simulation analysis.Simulation results show that microgrid integrates distributed resources and equipment based on blockchain technology to promote clean energy structure transformation.Based on blockchain integration,microgrid utilizes distributed new energy to realize supply-side coordination and optimize resource allocation,thus improving the flexibility of power supply of microgrid.The supply and demand parties participate in the power market in the form of independent nodes.Due to the advantages of the highly transparent information of the blockchain trading platform,the accuracy and economic benefits of distributed energy-consuming subjects’ decision-making are improved.Market members can manage risks better by using prospect theory to consider people’s bounded rationality and opportunistic behavior.The blockchain-based microgrid market can achieve the purpose of transforming the power industry to sustainable development in terms of stable power supply,economic benefits,energy conservation and emission reduction,and help accelerate the carbon peak and carbon neutrality in China. |