Using Full Order and Reduced Order Observers for Robust Sensorless Predictive Torque Control of Induction Motors

In this paper, two kinds of observer-based sensorless predictive torque control methods are proposed. The predictive method is based on examining feasible voltage vectors (VVs) in a prescribed cost function. The VV that minimizes the cost function is selected. A novel robust prediction model is pres...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2012-07, Vol.27 (7), p.3424-3433
Main Authors: Davari, S. A., Khaburi, D. A., Fengxiang Wang, Kennel, R. M.
Format: Article
Language:English
Subjects:
A.c. Machines
Applied sciences
Comparative analysis
Electric currents
Electrical engineering. Electrical power engineering
Electrical machines
Electronics
Exact sciences and technology
General (including economical and industrial fields)
Induction motor
Mathematical model
observer
Observers
Predictive models
predictive torque control
Regulation and control
Rotors
sensorless drive
Simulation
Stators
Testing. Reliability. Quality control
Torque
Torque control
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Summary:In this paper, two kinds of observer-based sensorless predictive torque control methods are proposed. The predictive method is based on examining feasible voltage vectors (VVs) in a prescribed cost function. The VV that minimizes the cost function is selected. A novel robust prediction model is presented. The prediction model includes sliding mode feedbacks. The feedback gains are assigned by the H-inf method. Two kinds of observers are applied for flux and speed estimation, i.e., sliding mode full order observer and reduced order observer. In order to verify the proposed method, simulation and experimental results are presented in wide speed range. A comparison of the two methods is performed based on the results.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2011.2179812