INVERTER CONTROL DEVICE

A driving control portion 6 in an inverter control device configured with a capacitor 32 having a smaller capacitance includes a magnetic-flux estimation portion 17 adapted to estimate a flux-linkage in a motor 5 based on the armature electric current in the motor 5 having a higher ratio of a reluct...

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Bibliographic Details
Main Author KAWAJI, MITSUO
Format Patent
LanguageEnglish
French
German
Published 19.11.2014
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:A driving control portion 6 in an inverter control device configured with a capacitor 32 having a smaller capacitance includes a magnetic-flux estimation portion 17 adapted to estimate a flux-linkage in a motor 5 based on the armature electric current in the motor 5 having a higher ratio of a reluctance torque, and an electric-current phase-difference adjustment portion 14 adapted to adjust the phase difference between the electric current and the induced voltage generated by the motor 5, wherein the electric-current phase-difference adjustment portion is adapted to perform a phase adjustment such that the estimated flux-linkage value estimated by the magnetic-flux estimation portion 17 is equal to or less than a predetermined set value and, also, at least one of the average value of an electric-current command value supplied to the motor 5, the average value of the effective value of the armature electric current, and the average value of the peak value of the armature electric current is minimized.
Bibliography:Application Number: EP20120865488