A battery system a plurality of battery strings, a charge equalization circuit, a relay matrix, and a balance controller. The plurality of battery strings comprises at least three batteries connected in series, where the battery strings are connected in parallel. The charge equalization circuit is capable of transferring charge between a pair of series connected batteries. The relay matrix is operatively connected between the charge equalization circuit and the plurality of battery strings. The balance controller operates the relay matrix based on at least one of a voltage and a current of any one of the batteries such that the charge equalization circuit is connected across any one of the pairs of series connected batteries in any one of the plurality of battery strings such that the charge equalization circuit transfers charge between the batteries in the pair of series connected batteries to which the charge equalization circuit is connected.


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    Title :

    Charge equalization systems and methods for battery systems and uninterruptible power supplies



    Publication date :

    2020-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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



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    HEIDENREICH JAMES JOSEPH / HAASS MICHAEL A / LE THANH QUOC et al. | European Patent Office | 2017

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    CHARGE EQUALIZATION SYSTEMS AND METHODS FOR BATTERY SYSTEMS AND UNINTERRUPTIBLE POWER SUPPLIES

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    Free access

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    HEIDENREICH JAMES JOSEPH / HAASS MICHAEL A / LE THANH QUOC et al. | European Patent Office | 2019

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    Free access