| 摘要 |
The focus of the invention is a control arrangement for controlling oxidation of a reformer (107) in a fuel cell system, each fuel cell in the fuel cell system comprising an anode side (100), a cathode side (102), and an electrolyte (104) between the anode side and the cathode side, and the fuel cell system comprising a main pipe line (122) for flowing fuel in the fuel cell system and the reformer (107) for converting the fuel to a composition suitable for the fuel cells. The control arrangement (128) comprises an oxygen source (123) for providing oxygen in the control arrangement (128), a diluting gas source (124) for providing diluting gas in the control arrangement (128), means (132) connected to both the oxygen source (123) and to the diluting gas source (124) for mixing oxygen from the oxygen source (123) and gas being circulated back from the reformer (107) in the control arrangement (128) into diluting gas from the diluting gas source (124) to provide feeding of oxidation gas to the reformer (107), means for forming oxygen content information from the gas circulation of the control arrangement (128), and control means (138) for controlling oxygen content of the gas circulation by controlling at least the amount of provided oxygen into the feeding of oxidation gas to the reformer (107) on the basis of the oxygen content information. |
