| 摘要 |
PURPOSE: A control apparatus for inverters is provided to suppress a chattering in an output voltage of an inverter portion by raising an output voltage when a chattering is detected in a chattering state detector. CONSTITUTION: A control apparatus(4) for inverters(1) having a DC(Direct Current) voltage as an input and operates an AC(Alternating Current) motor as a load. The control apparatus includes a driving signal calculator(43), a voltage detector, and a chattering state detector(42). The driving signal calculator calculates a driving signal for an inverter portion(41) which converts a DC source to a variable frequency-variable voltage AC voltage. The voltage detector detects the DC voltage. The chattering state detector detects a chattering state of the AC motor from a magnitude of a pulsation included in the detected DC voltage. |
