The invention relates to the technical field of photovoltaics, energy storage, charging piles and the like, and discloses a light storage, charging and discharging integrated charging system and a charging method.In the charging system, one end of an integrated constant current output AC/DC module is connected to a common AC bus, and the other end of the integrated constant current output AC/DC module is connected with one end of each switch module; one end of the integrated constant voltage output AC/DC module is connected to the common AC bus, and the other end is connected to the semi-DC bus. The energy storage system and the photovoltaic system are connected to the semi-direct-current bus through the DC/DC module; one end of the bidirectional isolation DC/DC module is connected to the semi-DC bus, and the other end of the bidirectional isolation DC/DC module is connected with one end of each switch module. According to the integrated light storage charging and discharging gas framework adopting the semi-direct-current bus scheme, a photovoltaic system can charge a vehicle and an energy storage system only through a DC/DC module, the energy storage system can charge the vehicle only through the DC/DC module, compared with a previous alternating-current bus scheme, the number of AC/DC modules is reduced, and the cost is reduced. The power supply efficiency of the photovoltaic and energy storage system for providing electric energy for the charging terminal is improved, and the electric energy loss is reduced.

    本发明涉及光伏、储能及充电桩等技术领域,公开了一种光储充放一体化充电系统及充电方法,该充电系统中一体式恒流输出AC/DC模块的一端接入公共交流母线,其另一端与所有开关模组的一端连接;一体式恒压输出AC/DC模块的一端接入公共交流母线,其另一端接入半直流母线;储能系统、光伏系统均通过DC/DC模块接入半直流母线;双向隔离DC/DC模块的一端接入半直流母线,其另一端与所有开关模组的一端连接。通过采用半直流母线方案的一体式光储充放电气构架,光伏系统只需DC/DC模块即可对车辆和储能系统充电,储能系统也只需DC/DC模块即可对车辆充电,相较于之前的交流母线方案,减少了AC/DC模块,提高了光伏和储能系统为充电终端提供电能的供电效率、减少了电能损耗。


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    Title :

    Optical storage charging and discharging integrated charging system and charging method


    Additional title:

    一种光储充放一体化充电系统及充电方法


    Contributors:
    LI JIAN (author) / MA XINTIAN (author) / MA SHIWEI (author) / ZHANG JUN (author)

    Publication date :

    2024-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H05K PRINTED CIRCUITS , Gedruckte Schaltungen





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