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.
SMART BATTERY DISCONNECT AND PROTECTION ARCHITECTURE FOR AIRBORNE HIGH-POWER MODULAR MULTI-STRING BATTERY PACK
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
2025-01-01
Patent
Electronic Resource
English
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 |
BATTERY PACK AND MANUAL SERVICE DISCONNECT THEREOF, BATTERY PROTECTION METHOD
European Patent Office | 2024
|European Patent Office | 2023
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