Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2007-04-10
2007-04-10
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S432000
Reexamination Certificate
active
11391496
ABSTRACT:
The invention concerns a method for adjusting motor parameters in a variable speed drive intended to control an electric induction motor M. The method includes a step for determining differences ΔIDand ΔIQbetween motor flux current and motor torque current references and measurements, a step for calculating a correction value ΔRRof the rotor resistance and a correction value ΔLRof the rotor inductance from the integral terms of the differences ΔIDand ΔIQ, a step for adjusting values of parameters of the motor model based on ΔLRand ΔRR, a step for generating control voltages UDand UQto be applied to the motor M using said adjusted motor parameter values.
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Jadot Fabrice
Malrait Francois
Sepulchre Rodolphe
Ro Bentsu
Schneider Toshiba Inverter Europe SAS
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