A cluster discharge control method of a V2G direct current charging pile relates to the field of electric vehicle and power grid interaction, and comprises the following steps: after an electric vehicle is connected to the V2G charging pile, a vehicle owner inputs expected discharge start time, end time and discharge electric quantity; the V2G charging pile interacts with the vehicle through a CANbus to obtain current parameters of the vehicle; the V2G charging pile reports the parameters of the accessed vehicle and a mapping table of the output power and the energy conversion efficiency of the V2G charging pile to an energy management system; and the energy management system calculates the discharge priority of the current vehicle, preferentially schedules the vehicle with the high priority to discharge at any time, and controls the power of the V2G charging pile to be at the optimal energy conversion point. Therefore, the utilization rate of the energy of an energy storage battery of the electric vehicle can be improved, the heat generated by an AC-DC hybrid conversion module can be reduced, and the aging speed of the AC-DC hybrid conversion module can be reduced.
一种V2G直流充电桩的集群放电控制方法,涉及电动汽车与电网交互领域,该方法包括以下步骤:当电动汽车接入V2G充电桩后,车主输入期望的放电开始时刻、结束时刻及放电电量;V2G充电桩通过CAN总线与车交互,获取车辆当前的参数;V2G充电桩上报接入车辆的参数、V2G充电桩输出功率与能量转换效率的映射表至能量管理系统;能量管理系统计算出当前车辆的放电优先级,能量管理系统在任意时刻内总是优先调度优先级高的车辆放电,并控制V2G充电桩的功率在最佳能量转换点,该方法能提高电动车储能电池能量的利用率,还能降低交直流混合变换模块产生的热量,减缓交直流混合变换模块的老化速度。
Cluster discharge control method of V2G direct-current charging pile
一种V2G直流充电桩的集群放电控制方法
08.01.2021
Patent
Elektronische Ressource
Chinesisch
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