The invention relates to the technical field of bus charging, in particular to a bus fast charging station ordered charging method considering dynamic charging energy efficiency. The method comprises the following steps: firstly, determining an electric quantity demand meeting the running of a bus route, then establishing a relationship between charging energy conversion efficiency and charging power actually charged by a vehicle-mounted energy storage system, and taking the minimum actual electricity consumption of a charging station in one day or the minimum actual electricity charge of the charging station in one day as an objective function; establishing a nonlinear optimization objective function model, then converting the nonlinear optimization objective function model into a mixed integer convex programming problem, and solving the mixed integer convex programming problem to obtain an optimal charging plan including the optimal charging moment and the corresponding charging power of each vehicle; according to the scheme, the relations between the charging power and the transformer efficiency, the charger efficiency and the battery efficiency are fully considered, the charging energy conversion efficiency of the electric bus is improved, the electricity utilization cost of a charging station operator and the charging cost of the electric bus are reduced, and the economical efficiency is improved.
本发明涉及公交车充电技术领域,具体涉及一种考虑动态充电能量效率的公交车快充站有序充电方法;该方法首先确定满足公交线路运行的电量需求,随后建立充电能量转换效率与车载储能系统实际充入的充电功率之间的关系,以一天中充电站的实际用电量最小或一天之中充电站的实际电费最少为目标函数,建立非线性的优化目标函数模型,随后将非线性的优化目标函数模型转换为混合整数凸规划问题,求解混合整数凸规划问题得到最优的充电计划,包括每辆车的最优充电时刻及对应的充电功率;本方案充分考虑了充电功率与变压器效率、充电机效率和电池效率之间的关系,提高了电动公交车的充电能量转换效率,降低了充电站运营商的用电成本和电动公交车的充电成本,提高了经济性。
Bus fast charging station ordered charging method considering dynamic charging energy efficiency
一种考虑动态充电能量效率的公交车快充站有序充电方法
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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