Fuel cell voltage feedback control system
US7579097B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2002 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Mar 20, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus according to the present invention controls current that is supplied to a load by a fuel cell stack. A minimum voltage of a plurality of fuel cells in a fuel cell stack is monitored. The current load supplied by the fuel cell stack is increased if the minimum fuel cell voltage value exceeds a first voltage value. The current load supplied by the fuel cell stack is decreased if the minimum fuel cell voltage value is less than a second voltage value. The current load supplied by the fuel cell is maintained if the minimum fuel cell voltage is between the first and second voltage values. The current load is increased and decreased based upon a difference between the minimum fuel cell voltage and the first voltage value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.