Fuel cell system and control method of fuel cell system
US10756364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Dec 22, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a fuel cell system comprising a fuel cell including an electrolyte membrane, an anode and a cathode; and a controller configured to control a fuel gas supply part and an oxidizing gas supply part to supply amounts of a fuel gas and an oxidizing gas corresponding to a required power, to the fuel cell. During an intermittent operation that has the required power equal to or lower than a predetermined value and stops power generation in the fuel cell, the controller estimates a crossover amount that is an amount of the fuel gas moved from the anode to the cathode through the electrolyte membrane. The controller also calculates a supply amount of the oxidizing gas that is an amount of the oxidizing gas to be supplied to the fuel cell, based on the estimated crossover amount and controls the oxidizing gas supply part to supply the calculated supply amount of the oxidizing gas to the fuel cell. The supply amount of the oxidizing gas is calculated by an expression of: supply amount of oxidizing gas=crossover amount/2/oxygen concentration in oxidizing gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.