| 摘要 |
PURPOSE:To prevent the life of a water electrolysis device from being shortened in a fuel cell power generating system with the water electrolysis device with a secondary battery so as to improve the electrolyzing efficiency. CONSTITUTION:DC electricity generated in a fuel battery body 3 by the battery reaction of hydrogen in fuel from a fuel feeder 1 with oxygen in an oxidizer from an oxidizer feeder 3 is usually outputted to an inverter 4, which inverts the DC electricity into its corresponding AC electricity, via a change-over switch 10. At the early stage of operation of a fuel battery power generating system with a water electrolysis device 5 with a secondary battery 12 or during preparatory action for stopping operation of the system, the DC electricity generated in the battery body 3 is unstable in its voltage so that it is outputted to the secondary battery 12, which stabilizes its voltage, via the switch 10 and a countercurrent preventer 11 and then used for hydro-electrolysis by the water electrolysis device 5. Hydrogen and oxygen each generated by the hydro- electrolysis, and then stored respectively into a hydrogen storage device 6 and an oxygen storage device 7 for providing for the time of a sudden increase in the output of generated power, or of the like are added respectively to fuel and an oxidizer when necessary by controlling a hydrogen flow control valve 8 and an oxygen flow control valve 9. |
