FUEL SUPPLY SYSTEM FOR FUEL CELL SYSTEM AND METHOD OF CONTROLLING THE SAME

An apparatus may comprise a hydrogen compressor configured to compress a boil-off gas (BOG) from a liquid hydrogen storage tank and generate compressed hydrogen, a hydrogen cooler configured to cool the compressed hydrogen and provide a first portion of hydrogen, and a liquid hydrogen vaporizer configured to vaporize liquid hydrogen from the liquid hydrogen storage tank and provide a second portion of hydrogen, wherein at least one of the first portion of hydrogen or the second portion of hydrogen is supplied to a fuel cell system based on an amount of the BOG and an amount of hydrogen required by the fuel cell system.