The invention relates to a method for participating in power distribution network scheduling based on V2G electric vehicle aggregation. The method comprises the following steps: predicting a daily load curve of a power distribution network, wind power and photovoltaic power generation, electric vehicle schedulable power and battery electric quantity constraint, power grid peak and valley electricity prices and electric vehicle charging and discharging efficiency according to historical data; the power distribution network adjusts the peak-valley charging electricity price of the electric vehicle based on the given power grid peak-valley electricity price according to the renewable energy source available power prediction curve; establishing a double-layer scheduling model by taking the highest self-utilization rate of renewable energy sources of the power distribution network and the minimum cost of electric vehicle users as targets; carrying out convexity and linearization on the power flow constraint of the power distribution network by utilizing a second-order cone programming method; using an ADMM distributed algorithm to solve the output of a distributed power supply per hour before day, the electric energy exchange capacity with an external network and the transaction electric quantity of a power distribution network and an electric vehicle aggregator; and the power distribution network dispatching center issues an optimal dispatching plan to each electric vehicle aggregator in the region. The method is beneficial to improvement of renewable energy consumption.
本发明涉及一种基于V2G电动汽车聚合参与配电网调度的方法,包括:根据历史数据预测配电网日负荷曲线、风电和光伏可发功率、电动汽车可调度功率和电池电量约束、电网峰谷电价以及电动汽车充放电效率;配电网基于给定电网峰谷电价,依据可再生能源可发功率预测曲线对电动汽车峰谷充电电价进行调整;以配电网可再生能源自利用率最高、电动汽车用户成本最小为目标,建立双层调度模型;利用二阶锥规划方法对配电网潮流约束进行凸化和线性化;利用ADMM分布式算法求解日前每小时分布式电源的出力、与外网间的电能交换量以及配电网与电动汽车聚合商的交易电量;配电网调度中心向区域内各电动汽车聚合商发布最优调度计划。该方法有利于提升可再生能源消纳。
Method for participating in power distribution network dispatching based on V2G electric vehicle aggregation
一种基于V2G电动汽车聚合参与配电网调度的方法
2023-02-03
Patent
Electronic Resource
Chinese
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