ELECTRIC MOTOR CONTROL DEVICE, COMPRESSOR, AND ELECTRIC MOTOR CONTROL METHOD
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 23, 2020
app pub date -
Sep 30, 2019
filing date -
Sep 30, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is an electric motor control apparatus (1) configured to extract a speed ripple component from a difference between an angular frequency command and an angular frequency feedback, configured to generate a phase of the speed ripple component from the speed ripple component, configured to multiply a value of a periodic function corresponding to the phase and a given amplitude by each other, to thereby generate a torque compensation value, configured to calculate a torque command value from the difference between the angular frequency command and the angular frequency feedback, and configured to control a current to be output to an electric motor based on a compensated torque command obtained by adding the torque compensation value to the torque command value.
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