| 摘要 |
PROBLEM TO BE SOLVED: To achieve efficient operation control of a fuel cell unit.SOLUTION: An EMS 200 controls a fuel cell unit 150 that has: a cell stack 151B that generates power by a chemical reaction; and an auxiliary device. The EMS 200 has a control section 230 that provides instructions on operation modes of the fuel cell unit 150. The operation modes of the fuel cell unit 150 include: a power generation mode in which output power from the cell stack 151B is controlled so as to follow power consumption of a load 120; and a temperature maintenance mode in which power consumption of the auxiliary device is covered by externally supplied power and the temperature of the cell stack 151B is maintained within a predetermined temperature range. The EMS 200 calculates the cost of fuel required to cover the power consumption of the load 120, and the cost of the externally supplied power, for the respective operation modes, and exercises such control as to operate the fuel cell unit 150 in the less expensive one of the operation modes. |
