The invention provides a power battery ground charging control method and circuit, a power supply system and a rail vehicle, and the power battery ground charging circuit applied to the rail vehicle comprises a main ground charging device and a battery pack to be charged; the battery pack to be charged comprises at least two power battery packs; the method comprises the following steps: acquiring a current voltage value of each power battery pack; under the condition that the voltage difference exists between the power battery packs, the first charging path is controlled to be conducted, and the first power battery pack is charged through the main ground charging device; under the condition that the current voltage value of the first power battery pack is equal to the current voltage value of the second power battery pack, the second charging path is controlled to be conducted, and the first power battery pack and the second power battery pack are charged at the same time through the main ground charging device. The emergency charging requirement of the to-be-charged battery pack can be ensured, the charging speed is high, and the cost is low.

    本发明提供一种动力电池地面充电控制方法、电路、供电系统及轨道车辆,应用于轨道车辆的动力电池地面充电电路,包括主地面充电装置和待充电电池组;待充电电池组包括至少两个动力电池组;该方法包括:获取各动力电池组的当前电压值;在动力电池组之间存在电压差的情况下,控制第一充电路径导通,通过主地面充电装置为第一动力电池组充电;在第一动力电池组的当前电压值等于第二动力电池组的当前电压值的情况下,控制第二充电路径导通,通过主地面充电装置同时为第一动力电池组和第二动力电池组充电。本发明能够保证待充电电池组的应急充电需求,充电速度快且成本低。


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    Title :

    Power battery ground charging control method and circuit, power supply system and railway vehicle


    Additional title:

    动力电池地面充电控制方法、电路、供电系统及轨道车辆


    Contributors:
    LIU MING (author) / LI YANKUN (author) / WANG HAOLIN (author) / ZHANG DAOFANG (author) / MOU XIAOSHA (author)

    Publication date :

    2025-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61C Lokomotiven , LOCOMOTIVES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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