| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conditioner capable of determining abnormality of a driving circuit of an electric load for suppressing current variation without deteriorating a fuel cell.SOLUTION: In a power conditioner 1 for linking power generated from a fuel cell 2 to a power system 3, a power source part 15 for an auxiliary machine and an electric heater driving circuit 34 composed of an electric heater 31 and FETs 32, 33 connected to the electric heater 31 in series are connected to a DC link part 14. A control part 13, while supplying power from the power system 3 to the DC link part 14 through an output current sensor 23 in a stopped state of operation of a converter circuit part 10 and an inverter circuit part 11, turns on/off the FETs 32, 33 in a predetermined pattern and determines abnormality of the electric heater driving circuit 34 on the basis of a detection value of the output current sensor 23. |
