Developing Induction Motor State Observers with Increased Robustness

This paper presents the results of recently conducted research on Luenberger observers with non-proportional feedbacks. The observers are applied for the reconstruction of magnetic fluxes of an induction motor. Structures of the observers known from the control theory are presented. These are a prop...

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Bibliographic Details
Published in:Energies (Basel) 2020-10, Vol.13 (20), p.5487
Main Authors: Białoń, Tadeusz, Pasko, Marian, Niestrój, Roman
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Control algorithms
Control theory
Genetic algorithms
induction motor
Induction motors
Kalman filters
Luenberger observer
Magnetic flux
Magnetic induction
Mathematical models
Neural networks
Optimization
pole placement
State observers
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Summary:This paper presents the results of recently conducted research on Luenberger observers with non-proportional feedbacks. The observers are applied for the reconstruction of magnetic fluxes of an induction motor. Structures of the observers known from the control theory are presented. These are a proportional observer, a proportional-integral observer, a modified integral observer, and an observer with additional integrators. The practical application of some of these observers requires modifications to their structures. In the paper, the simulation results for all mentioned types of observers are presented. The simulations are performed with a Scilab-Xcos model which is attached to this paper. The problem of gains selection of the observers is discussed. Gains are selected with the described optimization method based on a genetic algorithm. A Scilab file launching the genetic algorithm also is attached to this paper.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13205487