Title:
【発明の名称】燃料電池直流並列運転システム
Document Type and Number:
Japanese Patent JP2520963
Kind Code:
B2
Abstract:
PURPOSE:To attain the effective use of a fuel cell by connecting the output of a fuel cell power supply in parallel to the output of a rectifier and controlling the output voltage of a DC power unit of the fuel cell power supply in response to the fluctuation of a load via an output voltage control means in order to control the load sharing rate of the output of the fuel cell power supply. CONSTITUTION:The load sharing rate changes between a DC power unit 2 and a rectifier 5 and then the output of the unit 2 changes when the current flowing to a load 10 changes or the output voltage of the rectifier 5 changes due to the fluctuation of a commercial power supply 4. Therefore the load sharing rate can be controlled for the output of the unit 2, i.e., the output of a fuel cell power supply 3 by controlling an output voltage control circuit 2-2 via an appropriate means and changing the output voltage of the unit 2. As a result, the output capacity of a fuel cell 1 can be prescribed at a level higher than the peak value of the load 10. Thus it is possible to effectively use a fuel cell of which investment is at a high cost.
Inventors:
MIZUGUCHI KENICHI
HASEGAWA TAKASHI
TSUTSUI KYOSHI
HASEGAWA TAKASHI
TSUTSUI KYOSHI
Application Number:
JP21777189A
Publication Date:
July 31, 1996
Filing Date:
August 24, 1989
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H01M8/04; G05F1/00; G05F1/67; (IPC1-7): G05F1/67; G05F1/00; H01M8/04
Domestic Patent References:
| JP2125312A |
Attorney, Agent or Firm:
Fujiya Shiga