| 摘要 |
PURPOSE:To effectively reduce the vibration of a motor-driven compressor by altering an output frequency by second inverter output control means when the detected value of vibration detecting means cannot be made a predetermined value or less by the alteration of an output voltage by first inverter output control means. CONSTITUTION:When the detected value of vibrating frequency detecting means for detecting the vibrating state of a motor-driven compressor 6 during driving is a predetermined value or more, the present output frequency of an inverter 5 is maintained by first inverter output control means, an output voltage is altered, and the detected value is suppressed to a predetermined value or less. When the detected value of the vibration detecting means cannot be reduced to a predetermined value or less by the alteration of the output voltage, the output frequency of the inverter 5 is altered by second inverter output control means to suppress the detected value of the vibration detecting means to the predetermined value or less. |
