主权项 |
1. A cogeneration system configured to supply electricity and heat with an engine, comprising:
a thermally driven heat pump; and an electrically driven heat pump, wherein an operation controller configured to perform electricity control in such a manner that generated electricity of the engine becomes equal to a balance electricity as a sum of required electricity for driving the electrically driven heat pump configured to compensate heat demand of the cogeneration system and electricity demand of the cogeneration system, is provided, the balance electricity being calculated from a formula:eb=Hcop×De1+Dh1+Dh2Hcop+R×Acop where, eb represents the balance electricity, De1 represents electricity demand of an electricity consuming device group, Dh1 represents heat demand of a low-grade heat utilization device group, Dh2 represents heat demand of a high-grade heat utilization device group, Hcop represents a pump efficiency of the electrically driven heat pump, Acop represents a pump efficiency of the thermally driven heat pump, and R represents thermoelectric ratio. |