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- Jaouad Azzouzi, Georges Barakat, Brayima Dakyo
- IEEE Transactions on Energy Conversion
- 2005

A quasi-three-dimensional (3-D) analytical model of the magnetic field in an axial flux permanent-magnet synchronous machine is presented. This model is derived from an exact two-dimensional analytical solution of the magnetic field extended to the 3-D case by a simple and effective radial dependence modeling of the magnetic field. The obtained quasi-3-Dâ€¦ (More)

- Yacine Amara, Pascal Reghem, Georges Barakat
- IEEE Transactions on Magnetics
- 2010

This paper presents an analytical model for prediction of eddy current loss in armature windings of permanent magnet brushless AC machines. The developed model can either be used in the case of internal or external rotor radial-field machines topologies. First, a 2-D exact analytical solution of magnetic field distribution in an actual geometry of slottedâ€¦ (More)

- A. Bellara, Yacine Amara, Georges Barakat, Brayima Dakyo
- IEEE Transactions on Magnetics
- 2009

This paper presents an analytical solution for prediction of the armature reaction magnetic field in slotted surface mounted permanent magnet radial flux synchronous machines. This technique is used in the case of internal and external rotor radial-field machines. The magnetic field expressions are developed in both slots regions and magnetic airgap regionâ€¦ (More)

- Yanis Laoubi, Mouheb Dhifli, Guillaume Verez, Yacine Amara, Georges Barakat
- IEEE Transactions on Magnetics
- 2015

This paper presents the analysis of open circuit performance of a permanent magnet linear machine using a new hybrid analytical model (HAM). The goal is to show the capabilities offered by this new modeling approach. The new HAM is based on a strong coupling of magnetic equivalent circuits method and analytical models. The analytical model, based on theâ€¦ (More)

- Huguette Tiegna, A. Bellara, Yacine Amara, Georges Barakat
- IEEE Transactions on Magnetics
- 2012

This paper presents a multi-slice analytical model for prediction of the open-circuit magnetic field in slotted semi-closed permanent-magnet axial flux synchronous machines. The technique is based on 2-D exact solution of the Maxwell's equations using the separation of variables method. The magnetic field expressions are developed in slots regions, slotâ€¦ (More)

- Yacine Amara, Sami Hlioui, Rachid Belfkira, Georges Barakat, Mohamed Gabsi
- IEEE Transactions on Vehicular Technology
- 2011

Double excitation synchronous machines combine permanent-magnet (PM) excitation with wound field excitation. The goal behind the principle of double excitation is to combine the advantages of PM-excited machines and wound field synchronous machines. These machines can constitute an energy-efficient solution for vehicle propulsion. This paper presents aâ€¦ (More)

- M. Homsi, Rania Lutfi, M.C. Rosa, Georges Barakat
- 2008 3rd International Conference on Informationâ€¦
- 2008

A new approach for building student model in an Adaptive and intelligent Web-based educational system (AIWBES) is introduced. This approach utilizes a hybrid algorithm based on Fuzzy-ART2 neural network and stochastic method called Hidden Markov Model (HMM), in order to evaluate and categorize students' knowledge status in six levels: Excellent, very good,â€¦ (More)

- A. Bellara, Habiba Bali, Rachid Belfkira, Yacine Amara, Georges Barakat
- IEEE Transactions on Magnetics
- 2010

This paper describes an analytical technique for prediction of open circuit eddy-current loss in armature windings and permanent magnets (PM) of series double excitation synchronous machines. First, a 2-D exact analytical solution of open circuit magnetic field distribution in idealized geometry of series double excitation synchronous machine isâ€¦ (More)

- V. Devanneaux, B. Dagues, J. Faucher, Georges Barakat
- Mathematics and Computers in Simulation
- 2003

A substantial portion of squirrel cage induction motor faults are stator related. An accurate transient model of squirrel cage induction machines under stator faults is presented here. A coupled magnetic circuits approach is used and very few restrictive assumptions are made. All parameters are calculated from the actual geometry and winding layout of theâ€¦ (More)

- El.H. Bouchikhi, Vincent Choqueuse, M. E. H. Benbouzid, J. Y. Charpentier, Georges Barakat
- IECON 2011 - 37th Annual Conference of the IEEEâ€¦
- 2011

To reduce the cost of wind energy, minimization and prediction of maintenance operations in wind turbine is of key importance. In variable speed turbine generator, advanced signal processing tools are required to detect and diagnose the generator faults from the stator current. To detect a fault in non-stationary conditions, previous studies haveâ€¦ (More)