Induction motor control device

Details Induction motor control device Induction motor control device

2011-05-24

2011-05-24

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Induction motor systems

C318S801000, C318S802000, C318S732000, C318S733000, C318S738000, C318S823000, C318S825000, C318S826000, C318S828000, C307S129000, C307S131000, C307S125000, C307S130000, C323S232000, C323S233000, C323S218000, C323S293000, C323S352000

Reexamination Certificate

active

07948201

ABSTRACT:
An induction motor control device includes an inverter circuit for driving an induction motor by outputting a command voltage, a current detector for detecting an output current, a magnetic flux estimation observer for generating an estimated magnetic flux, an estimated current, and a phase command for the motor using the command voltage and the output current, a primary angular speed estimator for estimating a primary angular speed using the estimated magnetic flux, a slip compensator for calculating a slip angular frequency using the output current, a first angular speed estimator for estimating a first angular speed using the primary angular speed and the output current, a second angular speed estimator for estimating a second angular speed using the output current, the estimated magnetic flux, and the estimated current, and a resistance estimator for estimating a secondary resistance value of the motor using the first and second angular speeds.

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patent: 11-041996 (1999-02-01), None

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