| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device and a control method which allow for efficient operation control of a fuel cell unit, and to provide a control device, a fuel cell system and a control method.SOLUTION: An EMS 200 controls a fuel cell unit 150 including a cell stack 151B generating power by chemical reaction and accessories, and a storage battery unit 140 having a storage battery 141. The EMS 200 includes a control unit 230 which directs a power generation mode for performing power generation of a cell stack 151B positively, or a temperature maintenance mode for performing control of covering power consumption of the accessories with a power supplied externally, and a control of maintaining the temperature of a power generation part in a predetermined temperature range, as one operation mode for the fuel cell unit 150. If the unit price of purchased power is lower than a predetermined price when charging the storage battery 141, the control unit 230 controls the fuel cell unit so as to operate in the temperature maintenance mode. |
