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Journal of Control Science and Engineering
Volume 2016, Article ID 3631254, 9 pages
Research Article

A Metric Observer for Induction Motors Control

1University of Brest, FRE CNRS 3744 IRDL, 29238 Brest, France
2Shanghai Maritime University, Shanghai 201306, China
3Alstom Grid, 91300 Massy, France
4DGA, 40000 Mont-de-Marsan, France
5ENI Brest, FRE CNRS 3744 IRDL, 29280 Plouzané, France

Received 14 November 2015; Revised 23 March 2016; Accepted 11 April 2016

Academic Editor: Kalyana C. Veluvolu

Copyright © 2016 Mohamed Benbouzid et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper deals with metric observer application for induction motors. Firstly, assuming that stator currents and speed are measured, a metric observer is designed to estimate the rotor fluxes. Secondly, assuming that only stator currents are measured, another metric observer is derived to estimate rotor fluxes and speed. The proposed observer validity is checked throughout simulations on a 4 kW induction motor drive.