| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system in which the impact of harmonic output current distortion from an auxiliary machine on the commercial power supply side can be eliminated by changing over the auxiliary machine power supply from the commercial power supply to direct supply from fuel cells when power is generated by fuel cells. <P>SOLUTION: The fuel cell system comprises: a fuel cell 11; DC/AC conversion means 12; operation control means 14 for controlling a series of operations from start-up to power generation; power supply changeover means 15 for changing over a power supply source to an auxiliary machine 17 between the fuel cell 11 and a commercial power supply; and auxiliary machine power supply generation means 16 for generating a power supply for the auxiliary machine based on the power from the fuel cell 11 or the commercial power supply. The operation control means 14 controls the power supply changeover means 15 to changeover the power supply source of the auxiliary machine power supply generation means 16 to power supply from the fuel cell 11 after power is generated by the fuel cell thus eliminating the impact of harmonic output current distortion from the auxiliary machine on the commercial power supply side thus performing stable power generation control when power is generated by the fuel cell. <P>COPYRIGHT: (C)2013,JPO&INPIT |
