Charging Right Transaction Mechanism among Green Charging Stations based on Blockchain Techniques

Industrial parks with intensive charging loads usually allocate charging rights to charging stations in the form of contracts, but this traditional centralized trading mechanism technically can be flawed with low efficiency, low transparency and high credit risk. In order to solve these problems, a multi-green charging station (GCS) charging rights transaction mechanism based on blockchain is proposed in this paper. Firstly, a decentralized platform is established to handle the trust problem between the trading center and the GCS. Secondly, a complete peer-to-peer(P2P) trading process for charging rights assignment to GCS is constructed. In the first round of transactions, the GCS nodes confirm their roles and submit bids according to their own transaction risk factors (TRFs). After two-stage bidding match, the market clearing takes the node credit into account. Finally, a consensus mechanism considering node credit score is established. The simulation results verify the feasibility of the proposed charging rights transaction mechanism.