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ELECTRIC-MOTOR DRIVING DEVICE AND REFRIGERATION-CYCLE APPLICATION APPARATUS INCLUDING ELECTRIC-MOTOR DRIVING DEVICE
ELECTRIC-MOTOR DRIVING DEVICE AND REFRIGERATION-CYCLE APPLICATION APPARATUS INCLUDING ELECTRIC-MOTOR DRIVING DEVICE
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机译:电动驱动装置及包括电动驱动装置的制冷循环应用设备
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摘要
An electric-motor driving device includes an inverter connected to terminals connected to windings of an electric motor including the windings, the inverter applying an alternating-current voltage to the electric motor, a switching unit connected to the terminals and capable of switching a connection state between the terminals, a detecting unit that detects at least one of a voltage and an electric current of the inverter, and a control unit that determines on the basis of a detection value detected by the detecting unit that an abnormality occurs in the switching unit and controls the inverter to short-circuit at least two of the terminals.
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