The invention discloses an electric vehicle energy storage grid-connected power supply method, device and system. The system comprises the electric vehicle and the charging pile. At least one of the electric automobile and the charging pile comprises a grid-connected inverter capable of being connected with a power supply network. After the electric vehicle and the charging pile are connected through the charging interface, if the current time is the peak power time and the grid-connected power supply electric quantity exceeds a preset threshold value, a battery of the electric vehicle supplies power to a power supply network through the grid-connected inverter. According to the invention, the electric vehicle is used as a movable energy storage device to supply power to a power user at the peak power time, so that energy waste caused by the fact that the power of the energy storage device needs to pass through a power transmission line after being connected to the internet is reduced, and meanwhile, the availability of the electric vehicle is ensured by calculating the grid-connected power supply electric quantity and controlling the power supply grid-connected process; therefore, the influence on the daily use of the electric vehicle after grid-connected power supply of the electric vehicle is avoided.
本发明公开了电动汽车储能并网供电的方法、装置和系统。该系统包括电动汽车和充电桩。电动汽车和充电桩至少其中之一包含有能够连接供电网的并网逆变器。当电动汽车和充电桩通过充电接口连接后,若当前时间为峰电时间且可并网供电电量超过预先设定的阈值,电动汽车的电池通过所述并网逆变器向供电网供电。本发明将电动汽车作为可移动的储能设备,在峰电时间为用电用户供电,从而减少因为储能设备电力上网后需要经过输电线路而造成的能源浪费,同时通过对可并网供电电量的计算和对供电并网过程的控制,保证电动汽车自身的可用性,以避免电动汽车电力并网供电后造成对电动汽车日常使用的影响。
Electric vehicle energy storage grid-connected power supply method, device and system
电动汽车储能并网供电的方法、装置和系统
2023-12-19
Patent
Electronic Resource
Chinese
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