The invention relates to the technical field of charging systems, in particular to a direct-current V2G charging and discharging pile integrated charging and discharging system which comprises a control circuit, an execution circuit and a signal acquisition circuit, the control circuit is in communication connection with the execution circuit, and the two ends of the execution circuit are connected with a charging device and an electric vehicle battery respectively. The execution circuit comprises a bridge arm unit formed by connecting a first power switch tube unit and a second power switch tube unit in series, and two ends of the bridge arm unit are respectively connected with a first capacitor and a second capacitor in series to form a loop. The direct-current boost or direct-current step-down of the current is realized, a simple and effective solution is provided for solving the problem of energy flow between the electric vehicle and the power grid, the emission of carbon dioxide and the dependence on petroleum are reduced, the electric vehicle adopting the V2G technology can become a mobile energy storage device, and both the power grid and electric vehicle users can obtain benefits.
本发明涉及充电系统技术领域,具体是指一种直流V2G充放电桩一体化充放电系统,包括控制电路、执行电路和信号采集电路,控制电路与执行电路通讯连接,执行电路两端分别连接充电装置和电动汽车电池,执行电路包括由第一、第二功率开关管单元串联组成的桥臂单元,桥臂单元的两端分别串联有第一、第二电容形成回路,优点在于:通过控制电路中的功率开关管的状态实现电路BUCK/BOOST转换,使电流在直流状态下完成流通,实现电流直流升压或直流降压,为解决电动汽车与电网之间的能量流动提供了简单有效的解决方案,有利于减少二氧化碳的排放和对石油的依赖,采用V2G技术的电动汽车还能够成为一种移动储能装置,使电网和电动汽车用户均获得收益。
Direct current V2G charging and discharging pile integrated charging and discharging system
一种直流V2G充放电桩一体化充放电系统
2023-07-04
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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