An apparatus and method for mitigating the abrupt release of energy due to a short circuit or other fault external to battery modules in a battery pack is disclosed. The battery pack comprises a plurality of series-connected battery modules. Each battery module includes a plurality of weakened fusible links (56a), which connect an associated plurality of parallel-connected cells (5) to a first or second busbar (46a, 46b), and a plurality of non-weakened fusible links (56), which connect an associated plurality of parallel-connected cells (5) to a third or fourth busbar (46a, 46b). In the event of a fault the shortened arcing time across the weakened fusible links prevents catastrophic damage to the battery. A photodetector detects the presence of an arc across the weakened fusible links, and an electronic load control unit closes a bypass switch to bypass the battery module if an arc is detected.


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    Title :

    APPARATUS AND METHODS FOR ARC DETECTION, FAULT ISOLATION, AND BATTERY SYSTEM RECONFIGURATION


    Additional title:

    VORRICHTUNG UND VERFAHREN ZUR LICHTBOGENDETEKTION, FEHLERISOLIERUNG UND BATTERIESYSTEMREKONFIGURATION
    APPAREIL ET PROCÉDÉS DE DÉTECTION D'ARC, D'ISOLATION DE DÉFAUT ET DE RECONFIGURATION DE SYSTÈME DE BATTERIE


    Contributors:

    Publication date :

    2023-03-29


    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 / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT