FUEL CELL SYSTEM AND METHOD OF CONTROLLING THE SAME

摘要

A fuel cell system according to the invention is equipped with a drive motor (16), a fuel cell (11) that generates electric power through an electrochemical reaction of oxidizing gas containing oxygen and fuel gas containing hydrogen and supplies the drive motor with electric power, normal electric power generation means (20) for performing normal electric power generation under a condition that the fuel cell not be warmed up, warm-up electric power generation means (20) for performing warm-up electric power generation with lower electric power generation efficiency than normal electric power generation to cause a system loss for warming up the fuel cell, and warm-up control means (20) for controlling performance of warm-up electric power generation by the warm-up electric power generation means on a basis of a predetermined index on a necessity to warm up the fuel cell. The warm-up control means (20) controls an operation state of the fuel cell during warm-up electric power generation by the warm-up electric power generation means (20) on a basis of a correlation between the system loss required for warm-up of the fuel cell by the warm-up electric power generation means and a warm-up output required for driving of a load including the drive motor during warm-up of the fuel cell.