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

APP PUB NO 20200028454A1
SERIAL NO

16587075

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Abstract

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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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Patent Owner(s)

  • KABUSHIKI KAISHA YASKAWA DENKI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KINOMURA, Hirofumi Kitakyushu-shi, JP 7 12

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