| 摘要 |
PURPOSE:To enhance the power generating efficiency by allowing all the residual electric power generated by a fuel battery to be absorbed by a secondary battery when the load is shut off or at the time of stopping. CONSTITUTION:A breaker CB1 is installed between a fuel battery 1 and a DC/AC converter 2, and the power supply bus bar is diverged from the breaker CB1 by breakers CB2, CB3, and a secondary battery 4 and an electric heater 5 are connected via the breakers CB3, CB2, respectively. When the load is shut off or at the time of stopping, the secondary battery 4 which has absorbed the residual electric power of the fuel battery 1 is connected with the mentioned electric heater 5 as heat source for temp. rise at the time of starting, and the electric power absorbed by the secondary battery 4 is consumed through the heater 5 at the time of temp. rise. Because the secondary battery 4 is in fully discharged condition at the time of starting or under normal operation subsequent thereto, good response can be offered to absorption of the residual electric power when the load is shut off. At such time, therefore, or even at the time of stopping, the electric power generated by the fuel battery can be absorbed, and this absorbed power is utilized at the time of temp. rise, which enhances the power generating efficiency. |
