V2G charging station

Abstract

Disclosed is a V2G charging station. Peak cutting and valley leveling of a power grid are realized through the V2G charging station; a large-capacity energy storing device is arranged in the charging station, so that peak-valley adjusting of the power grid is enabled not to completely depend on electromobile users; by a mode of searching nearby electromobiles, the electromobiles are enabled to sell or purchase power in a centralized manner, so that cost for grid connection of the electromobiles is lowered, impact on the power grid due to sudden grid connection of all electromobiles is reduced, and power supply stability of the power grid is maintained; buffering time for grid connection for power selling or purchasing of the electromobiles is provided by calculating remaining charging and discharging time through the energy storing device.

Description

technical field [0001] The present invention relates to the technical field of grid-connected power supply (V2G) for electric vehicles, in particular to a V2G charging station. Background technique [0002] Electric vehicles are the main development direction of new energy vehicles in the future. With the advancement of science and technology and the development of society, the related technologies of electric vehicles and the construction of charging facilities will continue to mature, and electric vehicles will be more and more widely used in people's lives. Electric vehicle charging station is a very important part of electric vehicle supporting facilities. Electric vehicles need to be charged for energy supply to meet their driving needs. Therefore, energy must be obtained from the grid, resulting in the generation of charging load. When the application scale of electric vehicles becomes larger and larger, and the construction of supporting charging facilities reaches a ...

AI Technical Summary

Problems solved by technology

[0004] The V2G grid-connected technology in the prior art uses electric vehicles to shave peaks and flat valleys, and does not sell or purchase electric vehicles as a whole to the grid. It is up to individual electric vehicle users to determine whether to charge or supply power to the grid. Uncertainty Larger, and when a single user connects to the grid to purchase or sell electricity, it also needs to be specially equipped with a rectifier and inverter device and a pricing device for charging or discharging, which increases the cost of the grid connection of the user's electric vehicle, and usually the use of the grid The peak of electricity is in the daytime, and the trough of electricity consumption is at night, and the daytime is also the peak of car use. At the same time, there is no information interaction between grid-connected electric vehicles, which leads to a large number of electric vehicles connected to the grid at the same time, which brings stability to the grid. Influence, so the V2G technology in the prior art has deficiencies

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