The invention discloses a charging and discharging control system based on a direct current charging pile, which is characterized in that when a direct current gun is connected with a new energy automobile and charges, the direct current gun interacts with a message of the new energy automobile to obtain charging voltage, and when the charging voltage is smaller than photovoltaic MPPT voltage, the new energy automobile is charged; photovoltaic energy is subjected to voltage drop through two poles of the first PV voltage reduction module, the second PV voltage reduction module, the third PV voltage reduction module and the first bidirectional DC/DC direct current charging and discharging module and the second bidirectional DC/DC direct current charging and discharging module, so that photovoltaic MPPT voltage is reduced to charging voltage, and then a new energy automobile is charged through a direct current gun; during the peak period of power utilization, when the direct current gun is connected with the new energy automobile and discharges, the direct current gun interacts with the message of the new energy automobile to obtain the current voltage of the new energy automobile; the electric quantity of a power battery of the new energy automobile is boosted through two poles of the first bidirectional DC/DC charging and discharging module/the second bidirectional DC/DC charging and discharging module and the bidirectional DC/AC conversion module and then is transmitted to a power grid.
本发明公开了一种基于直流充电桩的充放电控制系统,当直流枪连接新能源汽车并进行充电时,直流枪与新能源汽车的报文交互获得充电电压,当充电电压小于所述光伏MPPT电压时,光伏能量分别通过第一PV降压模块/第二PV降压模块/第三PV降压模块和第一双向DC/DC直流充放电模块/第二双向DC/DC直流充放电模块的两极压降以将光伏MPPT电压降至充电电压后通过直流枪对新能源汽车进行充电;在用电高峰期间,直流枪连接新能源汽车并进行放电时,直流枪与新能源汽车的报文交互获得新能源汽车的当前电压,将新能源汽车的动力电池电量经过第一双向DC/DC直流充放电模块/第二双向DC/DC直流充放电模块和双向DC/AC变换模块两极升压后输送至电网。
Charging and discharging control system and charging and discharging control method based on direct current charging pile
基于直流充电桩的充放电控制系统及充放电控制方法
2023-12-05
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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