基于区块链的电动汽车充电桩两阶段交易优化

为了解决电动汽车大规模发展带来的充电交易主体之间的信任问题,提出了基于区块链的电动汽车充电桩两阶段交易优化方法。首先,设计电动汽车充电桩两阶段交易优化框架;然后,为了避免电网负荷过载给电网的安全稳定运行带来影响,以电网容量裕度为约束,引入双向交易市场、P2P交易市场,在各个充电站之间进行充电权交易,构建电网与电动汽车充电桩交易优化模型;其次,为了降低充电站的偏差惩罚成本以及引导电动车车主有序充电,构建了基于需求响应的电动汽车充电桩与车主交易优化模型;最后,以某一仿真场景为例进行算例分析,验证模型的有效性。算例结果表明:基于区块链的两阶段交易优化模型,能提高充电站的收益,降低系统峰谷差。

Two-Stage Transaction Optimization for Electric Vehicle Charging Piles Applying Blockchain Technology

In order to solve the problem of trust between charging transaction subjects caused by the large-scale development of electric vehicles, this paper proposes a two-stage transaction optimization method for electric vehicle charging piles applying blockchain technology. Firstly, a two-stage transaction optimization framework for electric vehicle charging piles is designed. Then, in order to avoid the impact of overload on the safe and stable operation of the grid, the two-way trading market and P2P trading market are introduced with the capacity margin of the power grid as the constraint. The method performs charging rights transactions between charging stations, and builds an optimization model for the grid and electric vehicle charging pile transactions. Secondly, in order to reduce the deviation penalty cost of charging stations and guide electric vehicle owners to charge in an orderly manner, an optimization model based on demand response is built for the transactions between charging piles and the users. Finally, a simulation scenario is taken as an example to verify the validity of the model. The results of calculation examples show that the two-stage transaction optimization model based on blockchain technology can increase the revenue of the charging station and reduce the peak-to-valley difference of the system.