Energy storage charging device

Abstract

The invention discLoses an energy storage charging device, which comprises a moving unit, an operation controL unit arranged on the moving unit, an energy storage unit and a non-vehicLe charging and discharging device; the non-vehicLe charging and discharging device is provided with a charging end for eLectricaLLy connecting with an eLectric vehicLe, a power suppLy end for eLectricaLLy connectingwith an externaL power grid, and a energy storage end for eLectricaLLy connecting with the energy storage unit. The charging end charges or eLectrifies the eLectric vehicLe by way of AC / DC bidirectionaL conversion. The power suppLy end is eLectricaLLy connected to the externaL power grid by means of AC bidirectionaL transmission, and is used for taking power from and suppLying power to the externaL power grid. The energy storage end is eLectricaLLy connected to the energy storage unit by means of DC bidirectionaL transmission, and is used for taking power from or suppLying power to the energystorage unit. The device converts the eLectric energy in a charging stake or the externaL power grid through a pLuraLity of AC / DC converters respectiveLy, and converts the converted aLternating current or direct current eLectricity to the eLectric vehicLe, which can meet the design of AC / DC integrated charging.

Description

technical field [0001] The invention relates to the technical field of charging and discharging, in particular to an energy storage charging device. Background technique [0002] Cars are an important means of transportation in modern society. However, traditional fuel vehicles produce a lot of exhaust gas during use, and the use of fuel has a strong dependence on non-renewable resources. With the continuous progress of science and technology and the continuous improvement of environmental awareness, plug-in electric vehicle (plug-inelectric vehicle, PEV) has become one of the main directions of automobile development. In Japan, North America and Europe, grid-connected electric vehicles have begun to take shape. Compared with traditional fuel vehicles, electric vehicles have the advantages of being environmentally friendly and saving primary energy consumption. At the same time, the use of electric vehicles can greatly reduce CO emissions and help alleviate the greenhouse e...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an energy storage charging device, which solves the problem of conversion between traditional charging and discharging, and converts the electric energy in the charging pile or the external power grid through multiple AC / DC converters respectively. AC or DC power is transmitted to electric vehicles, which can meet the design of AC and DC integrated charging; according to the operation needs of the power grid and the information provided by the battery management system, the charging and discharging state can be automatically converted and the operating parameters of charging and discharging can be adjusted to realize the connection between the charging pile and the power grid. Two-way transmission of electric energy

Images