Motor control with voltage harmonic shaping
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United States of America Patent
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Nov 19, 2019
Grant Date -
Jul 10, 2014
app pub date -
May 16, 2012
filing date -
Jun 3, 2011
priority date (Note) -
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Abstract
A control system for an electric motor (10) comprises a current sensing means (14) arranged to produce a current sensing output indicative of electric current in the motor, current control means (20) arranged to receive a current demand and to control voltages applied to the motor, and correction means (26) arranged to receive the current sensing output and the current demand, and use them to generate a correction signal. The current control means (20) is arranged to receive the correction signal and to use the correction signal to correct the voltages applied to the motor.
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