| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cogeneration system capable of sufficiently reducing consumption energy of a heat/electric power cogenerating device by relatively simple control. <P>SOLUTION: This cogeneration system has a fuel cell 6 for generating electric power and heat, an inverter 10 for systematically linking generating electric power of the fuel cell 6 to a commercial electric power supply line, a hot water storage device for recovering heat generated from a fuel cell 2 as hot water, and a control means 70 for controlling operation of the fuel cell 6. The control means 70 controls the operation of the fuel cell 2 on the basis of a predicted energy reduction quantity being a difference between a predicted consumption energy quantity when operating an electric power plant and an auxiliary heating boiler and a predicted consumption energy quantity when operating the fuel cell 2. The control means 70 also controls the operation of the fuel cell 6 on the basis of the predicted energy reduction ratio being the predicted energy reduction quantity to a predicted hot water storage heat quantity. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
