Flux estimation in DTC for wide speed range

The focus of this work is to compare the different flux estimators in an induction motor(IM) direct torque control system (DTC) for wide speed operation. The back electromotive force (EMF) has to be integrated to estimate the stator flux linkage. The error in the stator flux linkage is due to the in...

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Bibliographic Details
Main Authors: Reddy, C. Upendra, Prabhakar, Kashyap Kumar, Singh, Amit Kumar, Kumar, Praveen
Format: Conference Proceeding
Language:English
Subjects:
Couplings
Cutoff frequency
dSPACE DS1103
Estimation
Flux estimators
Frequency estimation
Induction motors
Mathematical model
Stators
Online Access:Request full text
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Summary:The focus of this work is to compare the different flux estimators in an induction motor(IM) direct torque control system (DTC) for wide speed operation. The back electromotive force (EMF) has to be integrated to estimate the stator flux linkage. The error in the stator flux linkage is due to the initial condition and DC offset in the acquired feedback signals. The flux estimation techniques, which overcome the initial condition and DC offset problems are explained and implemented experimentally in an open loop on a 1.1Kw induction motor for a speed range of 60rpm to 3000rpm (revolutions per minute) in motoring mode.
ISSN:1944-9933
DOI:10.1109/PESGM.2016.7741637