Rita Mbayed

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This paper presents an optimal current control for the hybrid excitation synchronous motor in electric vehicle application. The whole electric propulsion system is modeled including the battery and converters. The control aims to meet the torque and speed requirements while insuring minimal copper and iron losses as well as inverter and chopper losses.(More)
This paper presents an optimal current control for the hybrid excitation synchronous motor in electric vehicle application. The control aims to meet the torque and speed requirements while insuring minimal copper and iron losses. Extended Lagrange multipliers optimization method (Kuhn-Tucker conditions) is used to elaborate analytical expressions for the(More)
This paper deals with the modeling and the control of the hybrid excitation synchronous machine (HESM) connected to a diode bridge rectifier. The set is operating as a DC generator that supplies an isolated grid in embedded applications such as aircraft electrical power generation. Saturation effects have also been taken into account. The aim of the control(More)
This paper deals with a doubly fed induction machine (DFIM) where both sides are supplied by two PWM inverters. The study consists in elaborating a robust vector control of the machine by the loop- shaping H<sub>infin</sub> approach. The H<sub>infin</sub> loop-shaping theory is presented in brief; then it is applied to the control of the DFIM. The(More)
In this paper, a new control scheme of an unbalanced standalone Doubly Fed Induction Generator (DFIG) is developed based on repetitive controllers in addition to the classic PI controllers. The proposed control is used to achieve good tracking of the rotor periodic reference currents generated due to the unbalanced load. The control is validated by(More)
In this paper, we suggest a new control approach for maximum power extraction applied to a variable speed Wind Turbine (WT). The proposed method aims to generate a constant maximum power defined over a given interval. The power set point is derived based on the mean wind speed predicted value. Since the wind speed turbulence component does not contribute to(More)
In this paper, a new compact brushless machine, the hybrid excitation synchronous machine (HESM) is presented as a potential candidate to replace the complex structure based on three separated machines, presently used in aircraft electrical power generation system. A particular attention is paid to the iron losses effect on the model and control of the HESM(More)
The paper proposes a new control strategy of a grid connected variable speed wind turbine (WT), based on a cascaded doubly fed induction generator (CDFIG). The generating plant is carried to extract the maximum power relative to the predicted mean wind speed, thus eliminating the power fluctuations associated to high frequencies component. Moreover the(More)