POWER CONVERSION DEVICE AND CONTROL METHOD
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
May 23, 2024
filing date -
May 23, 2024
priority date (Note) -
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Abstract
A power conversion device includes: power conversion circuitry configured to supply drive power to an induction motor; and control circuitry configured to: generate a torque command; correct the torque command, in response to determining that a magnitude of a primary frequency of the induction motor is less than a lower limit level, so that the magnitude of the primary frequency approaches the lower limit level; and control the power conversion circuitry to supply the drive power so that the induction motor generates a torque corresponding to the torque command.
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