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Optimal Decision Model of Micronet Group Carbon Trading Based on Blockchain
HU Wei, PEI Ying
2022, 31 (3):
567-576.
doi: 10.3969/j.issn.1005-2542.2022.03.014
Aimed at the problems of irrational carbon rights allocation mechanism of microgrid groups, low carbon rights trading efficiency, and low node participation, a blockchain-based microgrid group carbon rights trading optimization decision-making model is proposed. Combining the information transparency, decentralization, security, and credibility of the blockchain, a microgrid group carbon rights trading structure is established and a microgrid group default penalty mechanism is adopted to quantitatively calculate the reputation value of the microgrid node and achieve the reputation value and in-depth integration of microgrid node transaction priorities. The improved PBFT consensus mechanism is used to classify the nodes in the alliance chain to achieve the purpose of restricting the consensus authority of the nodes. On this basis, a carbon rights transaction process and a penalty mechanism is designed based on default. The algorithm realizes the automatic execution of many-to-many transactions within the microgrid group, ensuring the efficiency of carbon rights trading. According to the microgrid node carbon emission threshold, the microgrid nodes are classified to complete the pertinence of the microgrid group carbon rights allocation plan design. In a buyer’s market environment, the carbon rights trading optimization decision-making model is established based on the maximum total utility benefit of users as the objective function, which greatly improves the enthusiasm of microgrid users to participate in the carbon rights trading market, and protects the economic interests of microgrid node users. The calculation example analysis shows that the model can ensure the rationality of the carbon rights distribution of the microgrid group, improve the efficiency of carbon rights trading while improving the utility income of the microgrid node users, and further increase the enthusiasm of the microgrid nodes to participate in market transactions.
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