Methods and systems for protection/disconnect of high-power/energy high-voltage modular multi-string battery packs, such as battery packs for electric propulsion systems in all-electric or hybrid-electric aircraft. The methods and systems use a smart mid-point battery disconnect (14), comprising a current sensor (46) and a mid-point disconnect contactor (48), in conjunction with centralized battery management system (22). The resulting battery disconnect/protection system is configured to detect bus faults, load faults and string faults and then take appropriate action to isolate the detected fault. For example, in response to a short circuit in one battery string, the faulty battery string may be disconnected from the positive and negative busbars while the remaining battery strings continue to provide power.


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    Title :

    SMART BATTERY DISCONNECT AND PROTECTION ARCHITECTURE FOR AIRBORNE HIGH-POWER MODULAR MULTI-STRING BATTERY PACK


    Additional title:

    INTELLIGENTE BATTERIETRENN- UND SCHUTZARCHITEKTUR FÜR LUFTGESTÜTZTES MODULARES HOCHLEISTUNGSBATTERIEPAKET MIT MEHREREN STRÄNGEN
    ARCHITECTURE DE DÉCONNEXION ET DE PROTECTION DE BATTERIE INTELLIGENTE POUR BLOC-BATTERIE MODULAIRE HAUTE PUISSANCE MULTI-CHAÎNE AÉROPORTÉE


    Contributors:

    Publication date :

    2025-01-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / H01H Elektrische Schalter , ELECTRIC SWITCHES



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