ENERGY SUPPLY SYSTEM FOR AN UNDERWATER VEHICLE, METHOD FOR OPERATING AN ENERGY SUPPLY SYSTEM, AND UNDERWATER VEHICLE COMPRISING SUCH AN ENERGY SUPPLY SYSTEM

摘要

The invention relates to an energy supply system (4) for an underwater vehicle (1), in particular for a submarine or an unmanned underwater vehicle, comprising a fuel cell system (10), which can be operated with pure hydrogen or with a hydrogen-containing gas as a first operating gas and with pure oxygen or an oxygen-containing gas as a second operating gas, an operating gas container (13) for one of the two operating gases, said operating gas container (13) being fluidically connected to the fuel cell system (10), and a gas receiving device (14) for receiving boil-off gas from the operating gas container (13). According to the invention, the fuel cell system (10) at least comprises - a first fuel cell device (11) and - a second fuel cell device (12), wherein the first fuel cell device (11) and the second fuel cell device (12) can be connected to the operating gas container (13) and/or the gas receiving device (14) in a fluidically separated manner from each other. Thus, boil-off gas can be optimally used, thereby allowing a long service life of the underwater vehicle.