Global Stability of Linearizing Control with a New Robust Nonlinear Observer of the Induction Motor

Mohamed Chenafa, Abdellah Mansouri, Abderrahmane Bouhenna, Eric Etien, Abdelkader Belaidi, Mouloud Denai

Research output: Contribution to journalArticlepeer-review

Abstract

This paper mainly deals with the design of an advanced control law with an observer for a special class of nonlinear systems. We design an observer with a gain as a function of speed. We study the solution to the output feedback torque and rotor flux-tracking problem for an induction motor model given in the natural frame. We propose a new robust nonlinear observer and prove the global stability of the interlaced controller-observer system. The control algorithm is studied through simulations and applied in many configurations (various set points, flux and speed profiles and torque disturbances), and is shown to be very efficient.
Original languageEnglish
Pages (from-to)235-243
Number of pages8
JournalInternational Journal of Applied Mathematics and Computer Science
Volume15
Issue number2
DOIs
Publication statusPublished - 2005

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