ROTARY ELECTRIC MACHINE AND ROTARY ELECTRIC MACHINE DRIVE SYSTEM AND CONTROL METHOD

PROBLEM TO BE SOLVED: To realize drive control of a rotary electric machine which reduces a time constant of torque response to the smallest possible extent, even under a constraint, in a large-capacity servo motor required of the motor itself to have small rotor inertia, not just a large torque, in...

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Bibliographic Details
Main Authors SAKAI TOSHIHIKO, OHASHI TAKANORI
Format Patent
LanguageEnglish
Published 07.06.2012
Subjects
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:PROBLEM TO BE SOLVED: To realize drive control of a rotary electric machine which reduces a time constant of torque response to the smallest possible extent, even under a constraint, in a large-capacity servo motor required of the motor itself to have small rotor inertia, not just a large torque, in order to realize high acceleration, such that the stator shape necessary to realize decided rotor inertia is fixed.SOLUTION: In a rotary electric machine of plural winding type, each winding is composed with a winding group of a class whose electrical time constant is small and a winding group of a class whose electrical time constant is large, in which configuration, a torque command value or a torque command value change signal is distributed to the winding group of the class whose electrical time constant is small preferentially over the other, so that command waveforms supplied to each drive control circuit while the machine is run differ from each other.
Bibliography:Application Number: JP20100256390