The invention relates to an orderly charging control method and system for an electric vehicle. The control method comprises the following steps: acquiring electric vehicle state data and transmittingthe data to a decision center; determining an electric vehicle charging demand lumped parameter according to the electric vehicle charging demand information; setting the longest parking time periodof the electric vehicle in the charging station as a regulation and control time period; updating the load prediction value and the temperature prediction value in the regulation and control time period, and determining a basic load curve and an environment temperature curve; determining a transformer life acceleration factor according to the basic load curve and the environment temperature curve;based on a transformer life acceleration factor, with minimum transformer life attenuation in a regulation and control time period as a target and lumped parameters meeting electric vehicle chargingrequirements as constraint conditions, establishing an ordered charging control optimization model; and controlling the start and stop of the charging pile according to the orderly charging control optimization model, thereby orderly charging the to-be-charged electric vehicle. By means of the method, the service life attenuation of the transformer connected with the charging station is considered, and equivalent service life attenuation of the transformer connected with the charging station is reduced.
本发明涉及一种电动汽车有序充电控制方法及系统。所述控制方法包括获取电动汽车状态数据,传送给决策中心;根据电动汽车充电需求信息确定电动汽车充电需求集总参数;将充电站内电动汽车最长停车时段作为调控时段;在调控时段内,更新负荷预测值以及温度预测值,确定基础负荷曲线以及环境温度曲线;根据基础负荷曲线以及环境温度曲线确定变压器寿命加速因子;基于变压器寿命加速因子,调控时段内变压器寿命衰减最小为目标,满足电动汽车充电需求集总参数为约束条件,建立有序充电控制优化模型;根据有序充电控制优化模型控制充电桩的启停,对待充电的电动汽车有序充电。本发明考虑充电站所接变压器的寿命衰减,降低了充电站所接变压器等效寿命衰减。
Orderly charging control method and system for electric vehicle
一种电动汽车有序充电控制方法及系统
2020-09-18
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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