Electricity trade strategy of regional electric vehicle coalitions based on blockchain

As the currently popular energy-saving vehicles, EVs are widely used in urban commuter. However, its driving range is not long and the problems of charging difficulties in public areas have not been well solved. Aiming at the range anxiety encountered while EVs during driving, this paper proposes a blockchain-based V2V(vehicle-to-vehicle) electricity trading strategy. First, we establish the cost model and revenue model of EVs, and put forward the EVs’ coalition joining strategy and matching mechanism. Then, the consortium blockchain technology is used to build the V2V trading platform. Moreover, through PoS(proof-of-stake) consensus mechanism, the incentive allocation method considering the reputation value is designed. Finally, taking an area as example, the coalition transaction matching of regional EVs under different transaction conditions is calculated. The results show that, for trading platform, the profit from its operation is greater than its operating cost; For EVs participating in V2V, after the number of matching vehicles becoming saturated, the charging cost of charging EVs has reduced by more than 36% and the revenue of discharging EVs has increased by more than 33% compared to trade with the grid. The simulation results have verified the feasibility and effectiveness of the proposed strategy.