18672407. ELECTRICAL SYSTEM (ROLLS-ROYCE PLC)

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ELECTRICAL SYSTEM

Organization Name

ROLLS-ROYCE PLC

Inventor(s)

Chandana J. Gajanayake of Singapore (SG)

Devinda A. Molligoda of Nugegoda (LK)

ELECTRICAL SYSTEM

This abstract first appeared for US patent application 18672407 titled 'ELECTRICAL SYSTEM



Original Abstract Submitted

An electrical system includes: a battery; a fuel-cell pack; a load; a switching arrangement; and a control system. The switching arrangement selectively configures the electrical system in a battery-isolation mode and at least one of a battery-charge mode and a combined-drive mode. In the battery-isolation mode, the battery is decoupled from the fuel-cell pack and the load, and the fuel-cell pack is coupled to the load for driving of the load by the fuel-cell pack. In the battery-charge mode, the battery is coupled in series to the fuel-cell pack and the load for simultaneous charging of the battery and driving of the load by the fuel-cell pack. In the combined-drive mode, the battery is coupled in series to the fuel-cell pack and the load for driving of the load by both the battery and the fuel-cell pack.