CONTROLLER FOR INDUCTION MOTOR

PURPOSE:To obtain a controller for induction motor which can control the torque of an induction motor with high accuracy without spoiling the linearity of the torque even when a secondary magnetic flux or secondary current changes with time. CONSTITUTION:The primary current of an induction motor l i...

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Bibliographic Details
Main Authors KIMATA MASAHIRO, KOYAMA MASATO, KANEHARA YOSHIHIKO, KASHIWABARA MASANOBU
Format Patent
LanguageEnglish
Published 13.10.1995
Edition6
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:PURPOSE:To obtain a controller for induction motor which can control the torque of an induction motor with high accuracy without spoiling the linearity of the torque even when a secondary magnetic flux or secondary current changes with time. CONSTITUTION:The primary current of an induction motor l is controlled so that the d-axis component Ids and q-axis component Iqs of the primary current can coincide with the d-axis component command Ids and q-axis component command Iqs* of the primary current converted by means of a command converting means 27 based on the primary frequency omega of the motor 1 at which the q-axis component of the secondary magnetic flux of the motor 1 becomes zero.
Bibliography:Application Number: JP19940049136