PULSATION SUPPRESSION DEVICE OF ELECTRIC MOTOR

PROBLEM TO BE SOLVED: To surely and easily perform stabilization control which avoids the interference, vibration and dispersion of a torque pulsation compensation signal or the like. SOLUTION: In a torque control device which connects an electric motor 1 and a load device 2 through a shaft 3, measu...

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Bibliographic Details
Main Author TADANO YUGO
Format Patent
LanguageEnglish
Published 11.03.2010
Subjects
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:PROBLEM TO BE SOLVED: To surely and easily perform stabilization control which avoids the interference, vibration and dispersion of a torque pulsation compensation signal or the like. SOLUTION: In a torque control device which connects an electric motor 1 and a load device 2 through a shaft 3, measures the torque of the shaft by a torque meter 4, and inputs it to a controller 5, a torque pulsation suppression means mounted to the controller 5 extracts the torque pulsation of the electric motor by Fourier transformation with respect to an optional order component, learns and controls the torque pulsation so that its Fourier coefficient reaches zero, and adds the torque pulsation compensation signal obtained by the control to a current command of an inverter. COPYRIGHT: (C)2010,JPO&INPIT
Bibliography:Application Number: JP20080216863