Motor control apparatus
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United States of America Patent
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May 17, 2016
Grant Date -
Dec 4, 2014
app pub date -
Aug 21, 2014
filing date -
Feb 24, 2012
priority date (Note) -
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Abstract
This disclosure discloses a motor control apparatus including a controller. The controller includes a position controller and a speed controller. The controller is configured to control the inverter on the basis of the torque command. The controller includes a torque limiter configured to start first torque limitation which limits a commanded torque based on the torque command to a first torque or less in a case where the voltage detector detects that the DC voltage falls below a predetermined voltage, and to cancel the first torque limitation in a case where the voltage detector detects that the DC voltage exceeds the predetermined voltage. The controller includes a speed limiter configured to limit a commanded speed based on the speed command to a first speed or less in a case where the torque limiter cancels the first torque limitation.
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