Mohamed Seghir BOUCHERIT | Ecole Nationale Polytechnique d'Alger (original) (raw)
Papers by Mohamed Seghir BOUCHERIT
Periodica Polytechnica Electrical Engineering and Computer Science, 2019
The proposed manuscript presents a coefficient diagram method (CDM) controller for an electro-pne... more The proposed manuscript presents a coefficient diagram method (CDM) controller for an electro-pneumatic system. In order to tune the controller parameters, an artificial bee colony (ABC) optimization method is applied. According to the simulation results, the optimized parameters can provide better dynamic and steady state performances and higher robustness to the control algorithm, than the conventional tuned parameters.
2006 12th International Power Electronics and Motion Control Conference, Aug 1, 2006
A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to sta... more A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to stabilize these DC voltages, we propose to study the cascade constituted by a three phase three-level PWM rectifier, a clamping bridge and a nine level NPC voltage source inverter (VSI). In the first part, the authors present the topology of the nine-level NPC and they propose
Systems Analysis Modelling Simulation, Jun 26, 1995
Zenodo (CERN European Organization for Nuclear Research), Aug 1, 2019
Nature-inspired metaheuristic algorithms, particularly those founded on swarm intelligence, have ... more Nature-inspired metaheuristic algorithms, particularly those founded on swarm intelligence, have attracted much attention over the past decade. Firefly algorithm has appeared in approximately seven years ago, its literature has enlarged considerably with different applications. It is inspired by the behavior of fireflies. The aim of this paper is the application of firefly algorithm for solving a nonlinear algebraic system. This resolution is needed to study the Selective Harmonic Eliminated Pulse Width Modulation strategy (SHEPWM) to eliminate the low order harmonics; results have been applied on multilevel inverters. The final results from simulations indicate the elimination of the low order harmonics as desired. Finally, experimental results are presented to confirm the simulation results and validate the efficaciousness of the proposed approach.
Algerian journal of signals and systems, Jun 15, 2016
This article is a publication of the Algerian journal of Signals and Systems and is protected by ... more This article is a publication of the Algerian journal of Signals and Systems and is protected by the copyright agreement signed by the authors prior to its publication. This copy is sent to the author for non-commercial research and education use, including for instruction at the author's institution, sharing with colleagues and providing to institution administration. Other uses, namely reproduction and distribution, selling copies, or posting to personal, institutional or third party websites are not allowed.
Abstract of applied sciences and engineering, 2016
The indirect vector controlled induction motor (IM) drive Involves decoupling of the stator curre... more The indirect vector controlled induction motor (IM) drive Involves decoupling of the stator current into torque and flux producing components. This paper proposes the implementation of a (PI) control scheme applied to a two d-q current components model of an induction motor.
Archives of Electrical Engineering, Jul 26, 2023
In this paper, we propose a robust nonlinear control design concept based on a coefficient diagra... more In this paper, we propose a robust nonlinear control design concept based on a coefficient diagram method and backstepping control, combined with a nonlinear observer for the magnetic levitation system to achieve precise position control in the existence of external disturbance, parameters mismatch with considerable variations and sensor noise in the case, where the full system states are supposed to be unavailable. The observer converges exponentially and leads to good estimate as well as a good track of the steel ball position with the reference trajectory. A simulation results are provided to show the excellent performance of the designed controller.
Journal of Advanced Research in Science and Technology, Dec 31, 2014
ABSTRACT In this paper, a generalized minimum variance algorithm using the gain scheduling techni... more ABSTRACT In this paper, a generalized minimum variance algorithm using the gain scheduling technique is presented. First, we linearize the nonlinear model of the structure around a number of desired states representing regions of evolution of the structural response. Around each state, an Auto-Regressive-Moving-Average-eXogen (ARMAX) model of the structure is determined and a local GMV control law is developed. The control consists on switching-on or switching-off a local GMV controller depending on the actual state of the system. The approach consists on using Gaussian membership functions related to the domains around the points of linearization. The control from the local GMV controllers is weighed by these functions and added together to produce the final control.
In this paper, we studied the vector control, by orientation of rotor-flux by using fuzzy regulat... more In this paper, we studied the vector control, by orientation of rotor-flux by using fuzzy regulators for an induction machine without speed sensor with adaptation of rotor resistance. The speed is estimated by using the adaptive method with model of reference (MRAS). This method consists in working out two models one of reference and the control adjustable one for the estimate of two components of stator flux starting from the measurement of the currents and stator voltages. The estimated speed is obtained by cancelling the difference between stator-flux of the model of reference and those of the adjustable model. Very satisfactory results of simulation are presented at the end of this paper.
Lecture notes in networks and systems, 2018
Global warming and environmental pollution in one hand and the depletion of fossil fuel resources... more Global warming and environmental pollution in one hand and the depletion of fossil fuel resources in the coming decades in the other hand are now the two main concerns worldwide. Renewable energies are a solution to replace conventional sources of energy that are polluting and tend to disappear. Photovoltaic energy constitutes among renewable energies that it has the broadest potential of development.
Archives of Control Sciences, Sep 1, 2013
This paper presents the synthesis of an adaptive observer which is used for the improvement of th... more This paper presents the synthesis of an adaptive observer which is used for the improvement of the direct torque control of induction motor drives. The observer detects stator flux components in two-phase stationary reference frame, rotor speed and stator resistance by measure of the stator terminal voltages and currents. The observer is adapted using a simple algorithm which does not imply a high computational load. Stability analysis based on Lyapunov theory is performed in order to guarantee the closed loop stability. Simulation tests under load disturbance and stator resistance variation are provided to evaluate the consistency and performance of the proposed control technique in the low and high speeds.
Systems Analysis Modelling Simulation, Jun 26, 1995
International Journal for Simulation and Multidisciplinary Design Optimization, 2015
This paper presents an application of nonlinear continuous-time generalized predictive control (G... more This paper presents an application of nonlinear continuous-time generalized predictive control (GPC) to the distributed collector field of a solar power plant. The major characteristic of a solar power plant is that the primary energy source, solar radiation, cannot be manipulated. Solar radiation varies throughout the day, causing changes in plant dynamics and strong perturbations in the process. A brief description of the solar power plant and its simulator is given. After that, basic concepts of predictive control and continuous-time generalized predictive control are introduced. A new control strategy, named nonlinear continuous-time generalized predictive control (NCGPC), is then derived to control the process. The simulation results show that the NCGPC gives a greater flexibility to achieve performance goals and better perturbation rejection than classical control.
A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to sta... more A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to stabilize these DC voltages, we propose to study the cascade constituted by a three phase three-level PWM rectifier, a clamping bridge and a nine level NPC voltage source inverter (VSI). In the first part, the authors present the topology of the nine-level NPC and they propose
This paper presents a new maximum power point tracking algorithm based on the hybrid dynamical th... more This paper presents a new maximum power point tracking algorithm based on the hybrid dynamical theory. A multiceli converter has been considered as an adaptation stage for the photovoltaic chain. The proposed algorithm is a hybrid automata switching between eight different operating modes, which has been validated by simulation tests under different working conditions.
Journal of Electrical Engineering, May 1, 2013
Voltage source multilevel inverters have become very attractive for power industries in power ele... more Voltage source multilevel inverters have become very attractive for power industries in power electronics applications during last years. The main purposes that have led to the development of the studies about multilevel inverters are the generation of output voltage signals with low harmonic distortion; the reduction of switching frequency. A serious constraint in a multilevel inverter is the capacitor voltage-balancing problem. The unbalance of different DC voltage sources of five-level neutral point clamping (NPC) voltage source inverter (VSI) constitutes the major limitation for the use of this new power converter. In order to stabilize these DC voltages, we propose in this paper to study the cascade constituted by three phases five-level PWM rectifier, a clamping bridge and five-level NPC (VSI). In the first part, we present a topology of five-level NPC VSI, and then they propose a model of this converter and an optimal PWM strategy to control it using four bipolar carriers. Then in the second part, we study a five-level PWM rectifier, which is controlled by a multiband hysteresis strategy. In the last part of this paper, the authors study shows particularly the problem of the stability of the multi DC voltages of the inverter and its consequence on the performances of the induction motors (IM). Then, we propose a solution to the problem by employed closed loop regulation using PI regulator type fuzzy logic controller (FLC). The results obtained with this solution confirm the good performances of the proposed solution, and promise to use the inverter in high voltage and great power applications as electrical traction.
In this paper, a design of robust controller based on Coefficient diagram method is investigated,... more In this paper, a design of robust controller based on Coefficient diagram method is investigated, to be used to control the outlet temperature of a solar plant based on cylindrical-parabolic collectors. It is noted that although the responses of the control system satisfy both transient and steady state specifications, the transient response generally still has long response time. In order to improve the speed of the system response, a PID controller is added into the controller designed by CDM. The design of both of CDM and PID controllers is done with a linearization of the nonlinear uncertain system described by two Partial differential equations around an operating point of the real system, then the designed controllers will be applied to the nonlinear system. The simulation results show that the performance of the controller based on CDM combined with PID has short response time, with no overshoot and the best perturbation rejection properties.
The main purpose of this paper is the evaluation of the shunt active power filter apparent power ... more The main purpose of this paper is the evaluation of the shunt active power filter apparent power ratio between the apparent power generated by the source power system to the load and the compensation apparent power produced by the shunt APF to force the currents circulating toward the source to be sinusoidal and balanced. This ratio allows defining the compensations
Periodica Polytechnica Electrical Engineering and Computer Science, 2019
The proposed manuscript presents a coefficient diagram method (CDM) controller for an electro-pne... more The proposed manuscript presents a coefficient diagram method (CDM) controller for an electro-pneumatic system. In order to tune the controller parameters, an artificial bee colony (ABC) optimization method is applied. According to the simulation results, the optimized parameters can provide better dynamic and steady state performances and higher robustness to the control algorithm, than the conventional tuned parameters.
2006 12th International Power Electronics and Motion Control Conference, Aug 1, 2006
A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to sta... more A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to stabilize these DC voltages, we propose to study the cascade constituted by a three phase three-level PWM rectifier, a clamping bridge and a nine level NPC voltage source inverter (VSI). In the first part, the authors present the topology of the nine-level NPC and they propose
Systems Analysis Modelling Simulation, Jun 26, 1995
Zenodo (CERN European Organization for Nuclear Research), Aug 1, 2019
Nature-inspired metaheuristic algorithms, particularly those founded on swarm intelligence, have ... more Nature-inspired metaheuristic algorithms, particularly those founded on swarm intelligence, have attracted much attention over the past decade. Firefly algorithm has appeared in approximately seven years ago, its literature has enlarged considerably with different applications. It is inspired by the behavior of fireflies. The aim of this paper is the application of firefly algorithm for solving a nonlinear algebraic system. This resolution is needed to study the Selective Harmonic Eliminated Pulse Width Modulation strategy (SHEPWM) to eliminate the low order harmonics; results have been applied on multilevel inverters. The final results from simulations indicate the elimination of the low order harmonics as desired. Finally, experimental results are presented to confirm the simulation results and validate the efficaciousness of the proposed approach.
Algerian journal of signals and systems, Jun 15, 2016
This article is a publication of the Algerian journal of Signals and Systems and is protected by ... more This article is a publication of the Algerian journal of Signals and Systems and is protected by the copyright agreement signed by the authors prior to its publication. This copy is sent to the author for non-commercial research and education use, including for instruction at the author's institution, sharing with colleagues and providing to institution administration. Other uses, namely reproduction and distribution, selling copies, or posting to personal, institutional or third party websites are not allowed.
Abstract of applied sciences and engineering, 2016
The indirect vector controlled induction motor (IM) drive Involves decoupling of the stator curre... more The indirect vector controlled induction motor (IM) drive Involves decoupling of the stator current into torque and flux producing components. This paper proposes the implementation of a (PI) control scheme applied to a two d-q current components model of an induction motor.
Archives of Electrical Engineering, Jul 26, 2023
In this paper, we propose a robust nonlinear control design concept based on a coefficient diagra... more In this paper, we propose a robust nonlinear control design concept based on a coefficient diagram method and backstepping control, combined with a nonlinear observer for the magnetic levitation system to achieve precise position control in the existence of external disturbance, parameters mismatch with considerable variations and sensor noise in the case, where the full system states are supposed to be unavailable. The observer converges exponentially and leads to good estimate as well as a good track of the steel ball position with the reference trajectory. A simulation results are provided to show the excellent performance of the designed controller.
Journal of Advanced Research in Science and Technology, Dec 31, 2014
ABSTRACT In this paper, a generalized minimum variance algorithm using the gain scheduling techni... more ABSTRACT In this paper, a generalized minimum variance algorithm using the gain scheduling technique is presented. First, we linearize the nonlinear model of the structure around a number of desired states representing regions of evolution of the structural response. Around each state, an Auto-Regressive-Moving-Average-eXogen (ARMAX) model of the structure is determined and a local GMV control law is developed. The control consists on switching-on or switching-off a local GMV controller depending on the actual state of the system. The approach consists on using Gaussian membership functions related to the domains around the points of linearization. The control from the local GMV controllers is weighed by these functions and added together to produce the final control.
In this paper, we studied the vector control, by orientation of rotor-flux by using fuzzy regulat... more In this paper, we studied the vector control, by orientation of rotor-flux by using fuzzy regulators for an induction machine without speed sensor with adaptation of rotor resistance. The speed is estimated by using the adaptive method with model of reference (MRAS). This method consists in working out two models one of reference and the control adjustable one for the estimate of two components of stator flux starting from the measurement of the currents and stator voltages. The estimated speed is obtained by cancelling the difference between stator-flux of the model of reference and those of the adjustable model. Very satisfactory results of simulation are presented at the end of this paper.
Lecture notes in networks and systems, 2018
Global warming and environmental pollution in one hand and the depletion of fossil fuel resources... more Global warming and environmental pollution in one hand and the depletion of fossil fuel resources in the coming decades in the other hand are now the two main concerns worldwide. Renewable energies are a solution to replace conventional sources of energy that are polluting and tend to disappear. Photovoltaic energy constitutes among renewable energies that it has the broadest potential of development.
Archives of Control Sciences, Sep 1, 2013
This paper presents the synthesis of an adaptive observer which is used for the improvement of th... more This paper presents the synthesis of an adaptive observer which is used for the improvement of the direct torque control of induction motor drives. The observer detects stator flux components in two-phase stationary reference frame, rotor speed and stator resistance by measure of the stator terminal voltages and currents. The observer is adapted using a simple algorithm which does not imply a high computational load. Stability analysis based on Lyapunov theory is performed in order to guarantee the closed loop stability. Simulation tests under load disturbance and stator resistance variation are provided to evaluate the consistency and performance of the proposed control technique in the low and high speeds.
Systems Analysis Modelling Simulation, Jun 26, 1995
International Journal for Simulation and Multidisciplinary Design Optimization, 2015
This paper presents an application of nonlinear continuous-time generalized predictive control (G... more This paper presents an application of nonlinear continuous-time generalized predictive control (GPC) to the distributed collector field of a solar power plant. The major characteristic of a solar power plant is that the primary energy source, solar radiation, cannot be manipulated. Solar radiation varies throughout the day, causing changes in plant dynamics and strong perturbations in the process. A brief description of the solar power plant and its simulator is given. After that, basic concepts of predictive control and continuous-time generalized predictive control are introduced. A new control strategy, named nonlinear continuous-time generalized predictive control (NCGPC), is then derived to control the process. The simulation results show that the NCGPC gives a greater flexibility to achieve performance goals and better perturbation rejection than classical control.
A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to sta... more A serious constraint in a multilevel inverter is the capacitor voltage-balancing. In order to stabilize these DC voltages, we propose to study the cascade constituted by a three phase three-level PWM rectifier, a clamping bridge and a nine level NPC voltage source inverter (VSI). In the first part, the authors present the topology of the nine-level NPC and they propose
This paper presents a new maximum power point tracking algorithm based on the hybrid dynamical th... more This paper presents a new maximum power point tracking algorithm based on the hybrid dynamical theory. A multiceli converter has been considered as an adaptation stage for the photovoltaic chain. The proposed algorithm is a hybrid automata switching between eight different operating modes, which has been validated by simulation tests under different working conditions.
Journal of Electrical Engineering, May 1, 2013
Voltage source multilevel inverters have become very attractive for power industries in power ele... more Voltage source multilevel inverters have become very attractive for power industries in power electronics applications during last years. The main purposes that have led to the development of the studies about multilevel inverters are the generation of output voltage signals with low harmonic distortion; the reduction of switching frequency. A serious constraint in a multilevel inverter is the capacitor voltage-balancing problem. The unbalance of different DC voltage sources of five-level neutral point clamping (NPC) voltage source inverter (VSI) constitutes the major limitation for the use of this new power converter. In order to stabilize these DC voltages, we propose in this paper to study the cascade constituted by three phases five-level PWM rectifier, a clamping bridge and five-level NPC (VSI). In the first part, we present a topology of five-level NPC VSI, and then they propose a model of this converter and an optimal PWM strategy to control it using four bipolar carriers. Then in the second part, we study a five-level PWM rectifier, which is controlled by a multiband hysteresis strategy. In the last part of this paper, the authors study shows particularly the problem of the stability of the multi DC voltages of the inverter and its consequence on the performances of the induction motors (IM). Then, we propose a solution to the problem by employed closed loop regulation using PI regulator type fuzzy logic controller (FLC). The results obtained with this solution confirm the good performances of the proposed solution, and promise to use the inverter in high voltage and great power applications as electrical traction.
In this paper, a design of robust controller based on Coefficient diagram method is investigated,... more In this paper, a design of robust controller based on Coefficient diagram method is investigated, to be used to control the outlet temperature of a solar plant based on cylindrical-parabolic collectors. It is noted that although the responses of the control system satisfy both transient and steady state specifications, the transient response generally still has long response time. In order to improve the speed of the system response, a PID controller is added into the controller designed by CDM. The design of both of CDM and PID controllers is done with a linearization of the nonlinear uncertain system described by two Partial differential equations around an operating point of the real system, then the designed controllers will be applied to the nonlinear system. The simulation results show that the performance of the controller based on CDM combined with PID has short response time, with no overshoot and the best perturbation rejection properties.
The main purpose of this paper is the evaluation of the shunt active power filter apparent power ... more The main purpose of this paper is the evaluation of the shunt active power filter apparent power ratio between the apparent power generated by the source power system to the load and the compensation apparent power produced by the shunt APF to force the currents circulating toward the source to be sinusoidal and balanced. This ratio allows defining the compensations