关键词: 多链结构, 区块链, 电力交易, 寻租匹配, P2P

Abstract: This paper proposes a power trading model based on a multi chain energy blockchain to address key challenges in traditional single chain power exchanges, such as limited stability, low efficiency, and credit ratings for energy producers and sellers. To enhance trading efficiency, a resource chain is introduced for adaptive rent-seeking and dynamic matching between supply and demand nodes, achieving decentralized resource scheduling and management. The practical Byzantine fault tolerance (PBFT) consensus mechanism is adopted on the power chain to ensure secure verification and consistent collaboration, effectively preventing unauthorized tampering of transaction data. Additionally, by incorporating a repayment capability index, a peer-to-peer (P2P) energy interaction model is established on the trading chain, promoting transparent pricing and improving credit rating between producers and sellers. Experimental results show that the multi-chain energy blockchain not only ensures fairness in transaction settlements, but also effectively improves energy utilization efficiency and enhances the credibility of transactions, providing theoretical and decision-making support for optimizing power trading models.

Key words: multi-chain structure, blockchain, power transaction, rent-seeking matching, peer-to-peer (P2P)