| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a co-generation system capable of increasing an electric power cover ratio that is a ratio of covering the consumption electrical power with a power generation amount of an electro-thermal cogeneration device while maintaining a hot water storage tank in a preferable storage state, with a simplified control structure and additionally, being capable of appropriately corresponding even when an electric power demand or heat demand of an operation day is different from a predicted electric power demand or heat demand.SOLUTION: A co-generation system comprises: an evaluation object period setting part A1 that is repeated setting a future evaluation object period; a demand estimation part A2 that estimates electric power demand and heat demand every object time within an evaluation object period; a power generation amount upper limit value temporary setting part A3; and a control power generation amount upper limit value setting part A6 that sets up the maximal power generation amount upper limit value as the control power generation amount upper limit value that satisfies a condition that an estimation hot water storage amount is less than the maximum set hot water storage amount of the hot water storage tank, the estimation hot water storage amount being estimated by actuating an exhaust heat amount estimation part A4 and a hot water storage amount estimation part A5, in that operation control means 5B controls a power generation amount of an electro-thermal cogeneration device at the present time using the control power generation amount upper limit value as an upper limit.</p> |
