一种V2G储能充电桩

By introducing DC contactors K1 and K2 to reconstruct the V2G charging pile system, direct power supply between electric vehicles and the power grid is realized, solving the problems of low efficiency and high system complexity caused by multiple power conversions in the existing technology, and improving system performance and response speed.

CN224510919UActive Publication Date: 2026-07-17SHANGHAI JIAOYUN AUTOMOTIVE POWER SYST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JIAOYUN AUTOMOTIVE POWER SYST
Filing Date
2025-08-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing V2G charging pile system requires multiple energy conversions, resulting in low efficiency, high system complexity, and difficulty in quickly responding to the grid frequency regulation requirements.

Method used

By using DC contactors K1 and K2 to reconstruct the system topology, electric vehicles can be directly connected to the PCS, eliminating intermediate conversion links and supporting the direct connection of electric vehicle power batteries to the power grid through the PCS.

Benefits of technology

It improves energy conversion efficiency, simplifies system structure, and supports rapid response to grid demands.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型属于新能源汽车与智能电网交互技术领域，涉及一种V2G储能充电桩，包括储能电池、功率转换系统和DC / DC模块，功率转换系统连接电网，储能电池和功率转换系统之间连接有直流接触器K2，DC / DC模块的一端连接在直流接触器K2和功率转换系统之间的线路上，DC / DC模块的另一端连接充电枪，DC / DC模块的两端之间连接有直流接触器K1。本实用新型通过设置了直流接触器K1、K1，可以进行常规充电模式和V2G馈电模式的切换，且在V2G馈电模式中，实现“电动汽车→PCS→电网”的直接馈电，省略中间转换环节，减少能量转换层级，提升了效率，无需依赖储能电池，支持电动汽车的动力电池通过PCS直连电网，可以快速响应需求。
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Claims

1. A V2G energy storage charging pile, comprising an energy storage battery, a power conversion system and a DC / DC module, characterized in that, The power conversion system is connected to the power grid. A DC contactor K2 is connected between the energy storage battery and the power conversion system. One end of the DC / DC module is connected to the line between the DC contactor K2 and the power conversion system. The other end of the DC / DC module is connected to the charging gun. A DC contactor K1 is connected between the two ends of the DC / DC module.

2. The V2G energy storage charging pile of claim 1, wherein, It also includes a battery management system, which is connected to the power conversion system and the DC / DC module.

3. The V2G energy storage charging pile of claim 2, wherein, It also includes a communication module, which is connected to the battery management system and the DC / DC module.