REFORMING CATALYST TEMPERATURE CONTROL SYSTEM AND CONTROL METHOD OF FUEL CELL POWER GENERATOR

摘要

PPROBLEM TO BE SOLVED: To provide a reforming catalyst temperature control system of a fuel cell power generator and its control method, having a wide operation control width wherein power generation shutdown is averted, as much as possible, to continuously obtain a more stable amount of power generation. PSOLUTION: This reforming catalyst temperature control system is provided with a temperature-setting means for determining the set temperature of a reformer corresponding to a setting current of a fuel cell, a flow rate calculating means for calculating a raw fuel supply flow rate and a fuel air supply flow rate, such as becoming a hydrogen utilization rate and an air-fuel ratio determined, corresponding to a temperature difference between the actual measured temperature and the setting temperature of the reformer, and a setting current control means for performing the control of reducing the setting current, when at least one of a raw fuel supply means supplying the raw fuel to the reformer or a fuel air supply means supplying the fuel air to the reformer reaches the supply limit. PCOPYRIGHT: (C)2007,JPO&INPIT