The invention belongs to the technical field of power electronics, discloses a battery equalization method and system, and combines a center tap push-pull inverter and a voltage amplification rectifier. Alternating conduction of diodes in the voltage amplification rectifier is controlled by changing the current direction of the transformer, and voltage balancing is automatically completed. By alternately conducting the IGBTs, the current direction of the primary side of the transformer is alternated; the alternating primary side current direction of the transformer causes the alternating secondary side current direction, so that the diodes connected in parallel with the battery are switched on alternately; the diodes are alternately conducted, and the voltage amplification rectifier on the secondary side of the transformer automatically completes equalization. The circuit design is simple, a negative feedback link does not exist, and the problem of system stability does not exist. The circuit is simple, only common devices need to be used, and the cost is very low.

    本发明属于电力电子技术领域,公开了一种电池均衡方法及系统,结合了中心抽头推挽式逆变器及电压放大整流器;利用变压器电流方向改变控制电压放大整流器中二极管的交替导通,自动完成电压均衡。通过交替导通IGBT,变压器初级侧电流方向交替;变压器初级侧电流方向交替引起次级侧电流方向交替,使与电池并联的二极管交替导通;二极管交替导通,变压器次级侧的电压放大整流器自动完成均衡。本发明中电路设计简单,不存在负反馈环节,不会有系统稳定性问题。本发明的电路简单,只需要使用到常见的器件,成本非常低。


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    Titel :

    Battery equalization method and system


    Weitere Titelangaben:

    一种电池均衡方法及系统


    Beteiligte:
    BI CHUANG (Autor:in) / LIU HAO (Autor:in) / BAI JINPING (Autor:in) / CHEN HUAWEI (Autor:in) / LAI JUNYU (Autor:in) / LI XUESHENG (Autor:in) / ZHONG QISHUI (Autor:in) / WEI MINGZHU (Autor:in)

    Erscheinungsdatum :

    02.01.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / 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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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