kendoucik

Scopus Publications

Maximum Power Point Tracking Control of a Wind Turbine with an Action on the Speed Multiplier
Khedidja Kendouci, Mohammed El Bachir Ghribi, Khayra Roummani
Chinese Journal of Electrical Engineering, 2025
A novel control strategy is introduced for tracking the maximum power point of a wind turbine coupled with a permanent magnet synchronous generator. In contrast to other control methods, this approach does not rely on an electrical actuator such as a rectifier or inverter. Instead, it uses a mechanical actuator—specifically, a speed multiplier—to ensure maximum power point (MPP) tracking. The selection of the optimal speed multiplication ratio enables the pursuit of the maximum power coefficient by adjusting the tip-speed ratio <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$(\lambda)$</tex> to its optimal value. This approach requires no learning time, only knowledge of the wind turbine and generator parameters, which are used for selecting or sizing the speed multiplier and for control purposes. The new approach is validated through simulation in Matlab/Simulink, incorporating a wind profile measured by our team over a 15-day period. The results demonstrate effective tracking of maximum power, achieving a power coefficient efficiency of 98.1%. Considering the measured variability of the wind, the overall energy efficiency over the 15 days reaches 99.16%. The approach is applied to a model of a low-power wind turbine designed for domestic applications.
A novel switching control for induction motors using a robust hybrid controller that combines sliding mode with pi anti-windup
Bilel Aichi, Khedidja Kendouci
Periodica Polytechnica Electrical Engineering and Computer Science, 2020
Induction Motors are the most used machines in the industrial field since the last century, due to their low cost, high robustness with satisfactory performance. However, they are still difficult to control compared to the DC motor because of the non-linearity presented in the mathematical model. Sliding mode theory is often used to develop powerful control against various internal and external disturbances. However, the chattering problem caused by the attractive part of the regulator is a serious problem for its applications. In this paper, the proposed solution for having an optimal performance consists in combining the Sliding Mode Control with an anti-windup proportional-integral regulator. This is achieved through a simple linear supervisor that can activate the sliding mode at start-up and transient regimes while making the second controller drive the steady state. The asymptotic stability of the delivered control signal is ensured via the Lyapunov method. This allows us to benefit from the advantages of the two regulators without having their disadvantages. This new hybrid technique can potentially offer very promising results in terms of robustness and control efficiency. The validation of this theory was carried out by simulation and then by practical implementation using a dSPACE-DS-1104 control board. The obtained results show a high-performance control with very good robustness against parametric variations and remarkable stability during all different operating zones.
Robust and stable speed control design using the variable gains backstepping technique for high-efficiency three-phase induction motor drives
Bilel Aichi, Khedidja Kendouci
Ccssp 2020 1st International Conference on Communications Control Systems and Signal Processing, 2020
For high-performance industrial applications based on AC electrical machines, it is necessary to develop a robust variable speed drive capable of ensuring the required control quality. The main disadvantage of the conventional version of integral Backstepping is the possibility of causing a bad behavior in the transient regimes, which is presented by an overcurrent and strong vibrations before the final stabilization of the system. In this paper, an optimized approach of Backstepping is applied to the speed control of an induction motor. The proposed solution for improving stability and efficiency is to introduce the variable gains property in the main speed regulator. Two different partial commands will perform the global control. The first one ensures the optimal convergence of the system in transient regimes without causing overshoot. The second command is intended for permanent regimes, where it can amplify the coefficients of the gains in order to reinforce the control robustness against applied loads. All control signals used in the algorithm are generated according to the Backstepping principle and the overall stability of the system is verified by Lyapunov's theorem. This technique was validated experimentally using a dSPACE-RTI-1104 card and empirical results showed remarkable real-time control in terms of stability, speed and robustness against external disturbances.
Real-time nonlinear speed control of an induction motor based on a new advanced integral backstepping approach
Bilel Aichi, Mohamed Bourahla, Khedidja Kendouci, Benyounes Mazari
Transactions of the Institute of Measurement and Control, 2020
This work proposes a robust control scheme of a three-phase induction motor using a new Backstepping approach based on variable gains. Because of the saturation blocks that are essential to protect the control system, the use of conventional integral Backstepping could lead to a modest performance represented by overshooting and strong vibrations in transitional regimes that cause overcurrent. To develop an efficient and simple control algorithm, the variable gains propriety is used in the speed controller to offer a quick response without overshooting with good robustness against external disturbances. The same property has been introduced in current regulation by a different mean in order to develop a new solution to solve obstacles related to very low-speed operations. The asymptotic stability of the global control is proven by Lyapunov theory. The improvement of the new version compared with the classical one was verified by a brief comparative study based on simulation results. The proposed algorithm has been implemented in a dSPACE DS 1104 card, to analyze the real-time motor performance, and to test control sensitivity against parametric variations. The obtained results show a remarkable improvement of the new control concerning rapidity and stability of transient regimes, overtaking elimination and reduction of starting current, with a low algorithm sensitivity against parametric variations. We have also been able to confirm that the new current control method can guarantee optimal regulation in order to achieve a high-performance operation at very low-speed zones, in the presence of various internal and external disturbances.
Nonlinear Speed Control of Induction Motor by the Combination of Fuzzy-Sliding-Mode and Integral-Backstepping Controllers
Bilel Aichi, Mohamed Bourahla, Khedidja Kendouci
Proceedings of the 2018 International Conference on Applied Smart Systems Icass 2018, 2018
This paper treats a nonlinear control technique applied to the three-phase induction motor speed, by using a hybrid regulator combines between Backstepping and sliding mode techniques. The idea stems from the observation that the integral-Backstepping offers a total external disturbance rejection, but it can cause a remarkable overshoot at startup because of the integral action, the thing that does not exist in the sliding mode controller. However, it has a major disadvantage presented by very high-frequency oscillations in the control signals during the steady state. The proposed solution is to use a powerful supervisor that can combine the benefits of both controllers, without lacking its efficiencies. The supervisor can give a decision through an approximate information on the operating regime. Which makes it possible to activate the sliding mode in the transient regime, while the Backstepping drives control in the steady-state. This approach has been analyzed and verified by simulation to illustrate the performance of the proposed controller.
Real-Time Hybrid Control of Induction Motor Using Sliding Mode and PI Anti-Windup
Bilel Aichi, Mohamed Bourahla, Khedidja Kendouci
Proceedings of 2018 3rd International Conference on Electrical Sciences and Technologies in Maghreb Cistem 2018, 2018
This paper presents a combined hybrid command between the sliding mode and PI Anti-Windup applied for the speed pursuit of an induction motor, the nonlinearity of their mathematical model increases the conception complexity of a powerful controller, the conventional methods cannot guarantee good performances in the presence of structural or external disturbances. The advantage of using sliding mode control is the simplicity of the design and their insensitivity to parametric variations. But the chattering phenomenon appeared in the steady-state remains an obstacle limits the application of this technique. We proposed to use a PI Anti-Windup regulator for control in the steady-state, however, the sliding mode regulator will work during the transient regimes, where a classical supervisor can handle the transition from one controller to another via approximate information on the operating regime. Experimental results are presented and analyzed to justify the effectiveness of the proposed approach.
High-performance speed control of induction motor using a variable gains backstepping: Experimental validation
Bilel Aichi, Mohamed Bourahla, Khadidja Kendouci
International Review of Electrical Engineering, 2018
This paper presents a new speed control of induction motor based on the integral Backstepping. This technique is considered as an effective method to solve the problem of uncertainties in the model parameters as well as the external disturbances rejection. But it may affect the transient regime by causing an overshoot or strong oscillations around the system equilibrium point. The proposed solution is to replace the static gains of the regulator with variable ones according to the transitional regime of speed. The stability analysis of the designed regulator is achieved via an appropriate Lyapunov function. This new method can potentially offer very promising results in terms of stability, simplicity and efficiency. Experimental results and robustness tests are presented to justify the high performance of the proposed control.
Nonlinear control of permanent magnet synchronous machine using feedback linearization and sliding mode control
M.B. Mazari, K. Kendouci, B. Mazari
2015 4th International Conference on Electrical Engineering Icee 2015, 2016
This paper presents a synthesis of control laws based on the theory of Lyapunov for speed control of permanent magnet synchronous machine, a first approach by variable structure and the second by input-output linearization. The results obtained are carried out under the same operating conditions in Matlab/Simulink environment. A comparative study was made showing the performance of the two control laws in terms of tracking imposed trajectories.
Speed-sensorless direct torque and flux control of PMSM based on extended Kalman filter using space vector modulation
K. Kendouci, B. Mazari, M. R. Benhadria, R. Dadi
3rd International Conference on Control Engineering and Information Technology Ceit 2015, 2015
In recent years direct torque control (DTC) has become an alternative to the well known vector control especially for permanent magnet synchronous motor (PMSM). But it presents a problem of field linkage and torque ripple. In order to solve this problem the conventional DTC is combined with space vector pulse width modulation (SVPWM). This control theory has achieved great success in the control of PMSM. The main objective of this paper gives us an introduction of the SVPWM-DTC control theory of PMSM which associated to an extended Kalman filter is order to estimate the rotor speed. That has been simulating on each part of the system via Matlab/Simulink based on the mathematical modeling. Moreover, the outcome of the simulation proved that the improved SVPWM-DTC of PMSM has a good dynamic and static performance.
An extended Kalman Filter for sensorless Direct Torque and field controlled PMSM speed drive using SVM approach
Journal of Electrical Engineering, 2015
A simple and robust speed tracking control of PMSM
Przeglad Elektrotechniczny, 2011
PMSM speed controller based on nonlinear adaptive backstepping
Journal of Electrical Engineering, 2011
Speed tracking control of PMSM using backstepping controller-simulation and experimentation
International Review of Electrical Engineering, 2010
Torque ripple minimization of Switched Reluctance Motor using hysteresis current control
M.R. Benhadria, K. Kendouci, B. Mazari
IEEE International Symposium on Industrial Electronics, 2006

kendoucik

RESEARCH, TEACHING, or OTHER INTERESTS

Scopus Publications