Motor torque control method and apparatus

Electricity: motive power systems – Induction motor systems – Primary circuit control

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318807, H02P 540

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active

053349237

ABSTRACT:
A method and apparatus for controlling torque by correcting slip gain error in an operating induction motor is provided. This is accomplished by measuring the amplitude and position of a flux in the motor such as rotor flux. Rotor flux position and amplitude can be estimated from the air gap flux. The slip gain can then be corrected in a single step or a few steps to provide a deadbeat control.

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