| 摘要 |
PROBLEM TO BE SOLVED: To quickly discharge power stored in an intermediate capacitor provided between a DC/DC converter and an inverter, by a simple configuration.SOLUTION: A cogeneration system 100 comprises: an in-house power generation device 10; a DC/DC converter 22; an inverter 23; an intermediate capacitor 25 which is provided between the DC/DC converter 22 and the inverter 23 and stores power outputted from the DC/DC converter 22; a waste heat heater 30 and a cooling fan motor 31 connected with the intermediate capacitor 25 via a first relay 27 and a second relay 28, respectively; and a control device 26. When power generation of the in-house power generation device 10 stops, the control device 26 stops operations of the DC/DC converter 22 and the inverter 23 and controls the first relay 27 and the second relay 28 so that the intermediate capacitor 25 is electrically connected with the waste heat heater 30 and the cooling fan motor 31.SELECTED DRAWING: Figure 1 |
