Circuit connection control system of fuel cell and method of operating the same
US8787050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Apr 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit connection control system of a fuel cell includes a point connection portion to which an anode current collecting portion and a cathode current collecting portion of each unit cell are electrically connected, a voltage measuring unit that measures an output voltage of each unit cell, a switching unit connecting the anode current collecting portions and the cathode current collecting portions of the plurality of unit cells at the point connection portion; and a DC-DC converter that converts a voltage generated from the fuel cell to a predetermined voltage. A method of operating the circuit connection control system includes measuring an output voltage of each unit cell; detecting a first unit cell showing an output voltage lower than a predetermined first voltage; and connecting the first unit cell in parallel to a second unit cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.