The invention provides an intelligent charging system for a hydrogen fuel cell stack, and the system comprises a lithium battery pack, and the system comprises a boost charging circuit which receivesan output voltage of the hydrogen fuel cell stack and boosts the output voltage into a charging voltage supplied to the lithium battery pack; a constant voltage control circuit which receives the output voltage and compares the output voltage with a first voltage threshold value, and when the first voltage threshold value is larger than the output voltage, the boost charging circuit is controlledto boost the output voltage to a constant value; a constant-current control circuit used for receiving the output voltage, comparing the output voltage with a second voltage threshold value, and controlling the boost charging circuit to increase the output current to the constant value when the second voltage threshold value is greater than the output voltage; and a current sampling circuit used for collecting the discharge current of the hydrogen fuel cell stack, the charge-discharge current of the lithium battery pack and the load current. After the technical scheme is adopted, the hydrogenfuel cell is matched with the lithium battery pack, and electric energy is effectively output under different use states of the moped.

    本发明提供了一种用于氢燃料电池电堆的智能充电系统,包括锂电池组,智能充电系统包括:升压充电电路,接收氢燃料电池电堆的输出电压,并升压为供至锂电池组的充电电压;恒压控制电路,接收输出电压并将输出电压与第一电压阈值比较,当第一电压阈值大于输出电压时,控制升压充电电路对输出电压升压至恒定值;恒流控制电路,接收输出电压并将输出电压与第二电压阈值比较,当第二电压阈值大于输出电压时,控制升压充电电路对输出电流增流至恒定值;电流采样电路,采集氢燃料电池电堆的放电电流、锂电池组的充放电电流及负载电流。采用上述技术方案后,使得氢燃料电池与锂电池组配合,在助力车不同使用状态下,有效地输出电能。


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    Title :

    Intelligent charging system for hydrogen fuel cell stack


    Additional title:

    一种用于氢燃料电池电堆的智能充电系统


    Contributors:
    QIAN CHENG (author) / SUN JISHENG (author) / LU MINMIN (author) / CEN JIAN (author) / ZE WEIJIE (author) / MA QIAN (author)

    Publication date :

    2020-05-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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