Fuel cell power generation system, derives demand load current depending on detected cell flow to regulate cell operating pressure, and derives load current correction cell pressure deviation

摘要

The system has a reforming device (1) that reforms the fuel and produces a hydrogen-rich reformed gas. A fuel cell (3) performs a reaction between the reformed gas and a gas containing oxygen and generates energy. The flow of reformed gas is controlled so that the reforming device operating pressure equals a demand pressure. The demand load current is derived from the cell depending on the detected cell flow so that the cell operating pressure equals a demand value. A load current correction is derived from a deviation between the detected cell input pressure and the cell demand pressure. The correction is added to the demanded load current.