Abdelkhalek Chellakhi | Ensa El Jadida (original) (raw)

Papers by Abdelkhalek Chellakhi

Research paper thumbnail of An Advanced MPPT Scheme for PV Systems Application with Less Output Ripple Magnitude of the Boost Converter

International Journal of Photoenergy

The purpose of this paper is to enhance the performance and tracking efficiency of solar photovol... more The purpose of this paper is to enhance the performance and tracking efficiency of solar photovoltaic systems. This aim can be achieved by operating the photovoltaic array at its optimum power and reducing the output ripple problem of DC-DC converters that affect and stress sensible electronic loads. In view of that, an advanced maximum power point (MPP) tracking (MPPT) scheme, which can guarantee zero oscillation tracking of the accessible MPP and less ripple magnitude on the output side of the DC-DC boost converter, is used. Various simulations are carried out under three conditions of solar irradiance variation, namely, standard test conditions (STC), rapid, and Sin scenarios, using the MATLAB/Simulink® environment, to assess and benchmark the robustness of the tracking of the new MPPT scheme over the celebrated Increment of Conductance (INC) MPPT scheme. Based on the simulation results, the proposed scheme can significantly improve tracking accuracy and reduce the magnitude of r...

Research paper thumbnail of Nonlinear control of single stage grid-tied photovoltaic systems based on a 3L-NPC topology

IFAC-PapersOnLine

In this paper, the problem of controlling the single-phase grid connected to the photovoltaic sys... more In this paper, the problem of controlling the single-phase grid connected to the photovoltaic system based on a 3-level half-bridge neutral point inverter with an L-filter is presented. The proposed controller is designed to meet three main control objectives: (i) regulating the capacitor voltages at the inverter input to a reference provided by the MPPT block to achieve maximum power, (ii) satisfying the power factor correction (PFC) requirement, (iii) balanced power exchange by regulating the two capacitor voltages at the inverter input to the same voltage value. The controller includes three control loops, namely, the inner current tracking loop designed with the integral sliding mode approach, the outer voltage regulation loop designed with the filtered PI controller, and the voltage balance loop designed with the PI controller. The performance, efficiency, and robustness of the proposed control strategies with respect to climate change are demonstrated through simulation in the Matlab/Simulink environment.

Research paper thumbnail of Optimization of Power Extracting from Photovoltaic Systems Based on a Novel Adaptable Step INC MPPT Approach

Research paper thumbnail of Advanced Control and Observation of Shunt Active Power Filter Connected to PV System

IFAC-PapersOnLine

We consider the problem of controlling single-phase shunt active power filter operating in presen... more We consider the problem of controlling single-phase shunt active power filter operating in presence of nonlinear loads. The filter is connected to PV system; this latter provides the active power to load. The main control objectives are: (i) compensation of harmonics current and the reactive power caused by the nonlinear load; (ii) regulation of the output voltage of PV system to track its reference provided by the MPPT block. The problem is dealt with a nonlinear controller involving two regulators in cascade. The PFC regulator is developed by using the Lyapunov technique to cope with the compensation issue based on the estimated grid voltage values provided by an observer. The outer-loop regulates the output voltage of PV system. The proposed controller performances are confirmed by simulation in MATLAB\Simulink.

Research paper thumbnail of A novel theta MPPT approach based on adjustable step size for photovoltaic system applications under various atmospheric conditions

Research paper thumbnail of Nonlinear control of active power filter connected to photovoltaic system

Materials Today: Proceedings

Research paper thumbnail of Nonlinear Control Strategy of Full Bridge Shunt Active Power Filter

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS), 2020

In this paper, considering the problem of control the full bridge shunt active power filter opera... more In this paper, considering the problem of control the full bridge shunt active power filter operating with nonlinear loads. The main control objectives are: (i) compensation of harmonics current and the reactive power caused by the nonlinear load in order to ensure a perfect power factor correction (PFC) at the point of common coupling (PCC); (ii) regulation the DC voltage of inverter. A nonlinear control strategy is proposed to achieve the main objectives taking into account of grid impedance, and of all non negligible parameters of circuit. The inner-loop control is designed, using the Lyapunov technique, to cope with the compensation issue. The outer-loop control ensures the DC voltage regulation of inverter. The control performances are analyzed using the averaging theory. Simulation results show the achievement of above objectives and also the effectiveness of the proposed control.

Research paper thumbnail of An innovative Fast-Converging speed MPPT approach without oscillation for temperature varying in photovoltaic systems applications

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects

Research paper thumbnail of Advanced Nonlinear Control of Single Phase Half Bridge Series Active Power Filter

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS)

This work addresses the problem of controlling single-phase half bridge series active power filte... more This work addresses the problem of controlling single-phase half bridge series active power filter (SAPF) in presence of perturbations in single-phase power supply grid voltage. The control objective of the SAPF is to compensate the voltage perturbations (voltage harmonics and voltage sags) in order to protect the sensitive load against the disturbances mentioned above. A nonlinear controller is designed, using the Backstepping technique, to cope with the compensation issue. A stability analysis is carried out using average theory to describe the control performances. These latter have been validated by numerical simulation in MATLAB/ SIMULINK.

Research paper thumbnail of Certified Publons Academy Peer Review

Research paper thumbnail of A Study and Implementation of Interleaved Boost Converter with a Novel MPPT Tactic for PV Systems

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS)

Enhancing PV system performance and efficiency requires improving the extraction of the maximum a... more Enhancing PV system performance and efficiency requires improving the extraction of the maximum available power from the PV generator and reducing the output losses from the using DC-DC converter. A new proposed MPPT technique in the second cited references is used to track the available maximum power (MPP) from the PV generator. On the other hand, the interleaved boost converter is used to minimizing the output current, voltage and power ripples. Two simulation scenarios are provided to examine and evaluate the tracking effectiveness of the proposed MPPT technique using the interleaved boost converter. The first one is carried out under sudden variation of solar irradiation however the second is made under slow variation of solar irradiation. The simulation results demonstrate the good performance of the proposed approach combining the new proposed MPPT algorithm with the interleaved boost converter compared to the conventional boost converter. The simulation implementation is carried out using MATLAB/Simulink software tool.

Research paper thumbnail of Implementation of a Novel MPPT Tactic for PV System Applications on MATLAB/Simulink and Proteus-Based Arduino Board Environments

International Journal of Photoenergy

This paper is aimed at harvesting the photovoltaic systems extracting power under difficult irrad... more This paper is aimed at harvesting the photovoltaic systems extracting power under difficult irradiance and load conditions, by proposing a novel maximum power point tracking (MPPT). This proposed MPPT tactic has been examined under various climatic and load conditions using two powerful and accurate simulation environments for PV systems, MATLAB/Simulink and Proteus. The first implementation using the MATLAB/Simulink software was carried out to examine the performance of the novel MPPT tactic under sudden insolation and load change, where the second implementation using the Proteus software was carried out in order to prove that the novel MPPT tactic can be easily implemented using low-cost components, Arduino board, and LCD display. The simulation results prove that the novel MPPT tactic has a high convergence speed to locate the MPP, especially at fast solar irradiation and load variation with zero oscillation under steady-state operation, which takes less than 9.6 milliseconds (m...

Research paper thumbnail of Ripples Amplitude Minimizing of the Output Boost Converter Using An Innovative MPPT Controller for PV Systems Applications

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS)

Research paper thumbnail of An Improved Maximum Power Point Approach for Temperature Variation in PV System Applications

International Journal of Photoenergy, 2021

This paper develops and discusses an improved MPPT approach for temperature variation with fast-t... more This paper develops and discusses an improved MPPT approach for temperature variation with fast-tracking speed and reduced steady-state oscillation. This MPPT approach can be added to numerous existing MPPT algorithms in order to enhance their tracking accuracy and response time and to reduce the power loss. The improved MPPT method is fast and accurate to follow the maximum power point under critical temperature conditions without increasing the implementation complexity. The simulation results under different scenarios of temperature and insolation were presented to validate the advantages of the proposed method in terms of tracking efficiency and reduction of power loss at dynamic and steady-state conditions. The simulation results obtained when the proposed MPPT technique was added to different MPPT techniques, namely, perturb and observe (PO besides, the steady-state power oscillations of the conventional P&O, INC, and modified MPP-Locus MPPT methods are 2, 1, and 0.6 watts, bu...

Research paper thumbnail of A Novel MPPT Tactic for PV Systems with Fast-Converging Speed and Zero Oscillation

This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic pan... more This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic panel sourced boost converter. The novel MPPT tactic has a high convergence speed and zero oscillation around the MPP under steady state operation, and high tracking speed in response to rapid changing of irradiance. Furthermore, it improves the tracking accuracy, without increase the implementation complexity. The proposed technique has been simulated in Matlab/Simulink environment and compared with some other MPPT techniques, such as Perturbed and observed (P & O), Increment of Conductance (INC) and fuzzy logic (FLC).

Research paper thumbnail of Web of Science Academy - certificates

Web of Science Academy, 2021

Web_of_Science_Academy_-_certificates_Good_Citation_Behavior

Research paper thumbnail of Web of Science Academy - certificates

Web_of_Science_Academy_-_certificates_Good_Citation_Behavior

Research paper thumbnail of Simulation Et Implémentation D’un Système PV sous l’Environnement Proteus Avec Nouvelle Commande MPPT

Simulation Et Implémentation D’un Système PV sous l’Environnement Proteus Avec Nouvelle Commande MPPT, 2019

Ce papier a pour objectif de valoriser une nouvelle technique MPPM (MPPT) pour extraire le maximu... more Ce papier a pour objectif de valoriser une nouvelle technique MPPM (MPPT) pour extraire le maximum de puissance générer par le panneau photovoltaïque. L’environnement Proteus est utilisé pour implémenter et simuler la nouvelle approche MPPM grâce à la carte Arduino UNO et un afficheur LCD. Les résultats de simulation prouvent la meilleure performance de notre commande MPPM par rapport à les deux traditionnelles techniques P&O et INC de dépister le point de puissance maximale PPM sous des conditions de changement brusque de l’éclairement solaire.

Research paper thumbnail of A Novel MPPT Tactic for PV Systems with Fast- Converging Speed and Zero Oscillation

Conference: 2020 5th International Conference on Renewable Energies for Developing Countries (REDEC), 2020

This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic pan... more This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic panel sourced boost converter. The novel MPPT tactic has a high convergence speed and zero oscillation around the MPP under steady state operation, and high tracking speed in response to rapid changing of irradiance. Furthermore, it improves the tracking accuracy, without increase the implementation complexity. The proposed technique has been simulated in Matlab/Simulink environment and compared with some other MPPT techniques, such as Perturbed and observed (P&O), Increment of Conductance (INC) and fuzzy logic (FLC).

Research paper thumbnail of An Improved MPPT Tactic for PV system under Temperature variation

An Improved MPPT Tactic for PV system under Temperature variation, 2019

An improved MPPT tactic is proposed in this paper for temperature variation in photovoltaic panel... more An improved MPPT tactic is proposed in this paper for temperature variation in photovoltaic panel sourced boost converter. In this article the improved algorithm has easily added to a novel MPPT tactic proposed in [1]and it can significantly improve the tracking accuracy, without increasing the implementation complexity of the PV systems. The improved technique has been simulated in Matlab/Simulink environment. In addition, the proposed algorithm yielded consistently more favorable results than did the MPPT algorithm in [1].

Research paper thumbnail of An Advanced MPPT Scheme for PV Systems Application with Less Output Ripple Magnitude of the Boost Converter

International Journal of Photoenergy

The purpose of this paper is to enhance the performance and tracking efficiency of solar photovol... more The purpose of this paper is to enhance the performance and tracking efficiency of solar photovoltaic systems. This aim can be achieved by operating the photovoltaic array at its optimum power and reducing the output ripple problem of DC-DC converters that affect and stress sensible electronic loads. In view of that, an advanced maximum power point (MPP) tracking (MPPT) scheme, which can guarantee zero oscillation tracking of the accessible MPP and less ripple magnitude on the output side of the DC-DC boost converter, is used. Various simulations are carried out under three conditions of solar irradiance variation, namely, standard test conditions (STC), rapid, and Sin scenarios, using the MATLAB/Simulink® environment, to assess and benchmark the robustness of the tracking of the new MPPT scheme over the celebrated Increment of Conductance (INC) MPPT scheme. Based on the simulation results, the proposed scheme can significantly improve tracking accuracy and reduce the magnitude of r...

Research paper thumbnail of Nonlinear control of single stage grid-tied photovoltaic systems based on a 3L-NPC topology

IFAC-PapersOnLine

In this paper, the problem of controlling the single-phase grid connected to the photovoltaic sys... more In this paper, the problem of controlling the single-phase grid connected to the photovoltaic system based on a 3-level half-bridge neutral point inverter with an L-filter is presented. The proposed controller is designed to meet three main control objectives: (i) regulating the capacitor voltages at the inverter input to a reference provided by the MPPT block to achieve maximum power, (ii) satisfying the power factor correction (PFC) requirement, (iii) balanced power exchange by regulating the two capacitor voltages at the inverter input to the same voltage value. The controller includes three control loops, namely, the inner current tracking loop designed with the integral sliding mode approach, the outer voltage regulation loop designed with the filtered PI controller, and the voltage balance loop designed with the PI controller. The performance, efficiency, and robustness of the proposed control strategies with respect to climate change are demonstrated through simulation in the Matlab/Simulink environment.

Research paper thumbnail of Optimization of Power Extracting from Photovoltaic Systems Based on a Novel Adaptable Step INC MPPT Approach

Research paper thumbnail of Advanced Control and Observation of Shunt Active Power Filter Connected to PV System

IFAC-PapersOnLine

We consider the problem of controlling single-phase shunt active power filter operating in presen... more We consider the problem of controlling single-phase shunt active power filter operating in presence of nonlinear loads. The filter is connected to PV system; this latter provides the active power to load. The main control objectives are: (i) compensation of harmonics current and the reactive power caused by the nonlinear load; (ii) regulation of the output voltage of PV system to track its reference provided by the MPPT block. The problem is dealt with a nonlinear controller involving two regulators in cascade. The PFC regulator is developed by using the Lyapunov technique to cope with the compensation issue based on the estimated grid voltage values provided by an observer. The outer-loop regulates the output voltage of PV system. The proposed controller performances are confirmed by simulation in MATLAB\Simulink.

Research paper thumbnail of A novel theta MPPT approach based on adjustable step size for photovoltaic system applications under various atmospheric conditions

Research paper thumbnail of Nonlinear control of active power filter connected to photovoltaic system

Materials Today: Proceedings

Research paper thumbnail of Nonlinear Control Strategy of Full Bridge Shunt Active Power Filter

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS), 2020

In this paper, considering the problem of control the full bridge shunt active power filter opera... more In this paper, considering the problem of control the full bridge shunt active power filter operating with nonlinear loads. The main control objectives are: (i) compensation of harmonics current and the reactive power caused by the nonlinear load in order to ensure a perfect power factor correction (PFC) at the point of common coupling (PCC); (ii) regulation the DC voltage of inverter. A nonlinear control strategy is proposed to achieve the main objectives taking into account of grid impedance, and of all non negligible parameters of circuit. The inner-loop control is designed, using the Lyapunov technique, to cope with the compensation issue. The outer-loop control ensures the DC voltage regulation of inverter. The control performances are analyzed using the averaging theory. Simulation results show the achievement of above objectives and also the effectiveness of the proposed control.

Research paper thumbnail of An innovative Fast-Converging speed MPPT approach without oscillation for temperature varying in photovoltaic systems applications

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects

Research paper thumbnail of Advanced Nonlinear Control of Single Phase Half Bridge Series Active Power Filter

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS)

This work addresses the problem of controlling single-phase half bridge series active power filte... more This work addresses the problem of controlling single-phase half bridge series active power filter (SAPF) in presence of perturbations in single-phase power supply grid voltage. The control objective of the SAPF is to compensate the voltage perturbations (voltage harmonics and voltage sags) in order to protect the sensitive load against the disturbances mentioned above. A nonlinear controller is designed, using the Backstepping technique, to cope with the compensation issue. A stability analysis is carried out using average theory to describe the control performances. These latter have been validated by numerical simulation in MATLAB/ SIMULINK.

Research paper thumbnail of Certified Publons Academy Peer Review

Research paper thumbnail of A Study and Implementation of Interleaved Boost Converter with a Novel MPPT Tactic for PV Systems

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS)

Enhancing PV system performance and efficiency requires improving the extraction of the maximum a... more Enhancing PV system performance and efficiency requires improving the extraction of the maximum available power from the PV generator and reducing the output losses from the using DC-DC converter. A new proposed MPPT technique in the second cited references is used to track the available maximum power (MPP) from the PV generator. On the other hand, the interleaved boost converter is used to minimizing the output current, voltage and power ripples. Two simulation scenarios are provided to examine and evaluate the tracking effectiveness of the proposed MPPT technique using the interleaved boost converter. The first one is carried out under sudden variation of solar irradiation however the second is made under slow variation of solar irradiation. The simulation results demonstrate the good performance of the proposed approach combining the new proposed MPPT algorithm with the interleaved boost converter compared to the conventional boost converter. The simulation implementation is carried out using MATLAB/Simulink software tool.

Research paper thumbnail of Implementation of a Novel MPPT Tactic for PV System Applications on MATLAB/Simulink and Proteus-Based Arduino Board Environments

International Journal of Photoenergy

This paper is aimed at harvesting the photovoltaic systems extracting power under difficult irrad... more This paper is aimed at harvesting the photovoltaic systems extracting power under difficult irradiance and load conditions, by proposing a novel maximum power point tracking (MPPT). This proposed MPPT tactic has been examined under various climatic and load conditions using two powerful and accurate simulation environments for PV systems, MATLAB/Simulink and Proteus. The first implementation using the MATLAB/Simulink software was carried out to examine the performance of the novel MPPT tactic under sudden insolation and load change, where the second implementation using the Proteus software was carried out in order to prove that the novel MPPT tactic can be easily implemented using low-cost components, Arduino board, and LCD display. The simulation results prove that the novel MPPT tactic has a high convergence speed to locate the MPP, especially at fast solar irradiation and load variation with zero oscillation under steady-state operation, which takes less than 9.6 milliseconds (m...

Research paper thumbnail of Ripples Amplitude Minimizing of the Output Boost Converter Using An Innovative MPPT Controller for PV Systems Applications

2020 IEEE 2nd International Conference on Electronics, Control, Optimization and Computer Science (ICECOCS)

Research paper thumbnail of An Improved Maximum Power Point Approach for Temperature Variation in PV System Applications

International Journal of Photoenergy, 2021

This paper develops and discusses an improved MPPT approach for temperature variation with fast-t... more This paper develops and discusses an improved MPPT approach for temperature variation with fast-tracking speed and reduced steady-state oscillation. This MPPT approach can be added to numerous existing MPPT algorithms in order to enhance their tracking accuracy and response time and to reduce the power loss. The improved MPPT method is fast and accurate to follow the maximum power point under critical temperature conditions without increasing the implementation complexity. The simulation results under different scenarios of temperature and insolation were presented to validate the advantages of the proposed method in terms of tracking efficiency and reduction of power loss at dynamic and steady-state conditions. The simulation results obtained when the proposed MPPT technique was added to different MPPT techniques, namely, perturb and observe (PO besides, the steady-state power oscillations of the conventional P&O, INC, and modified MPP-Locus MPPT methods are 2, 1, and 0.6 watts, bu...

Research paper thumbnail of A Novel MPPT Tactic for PV Systems with Fast-Converging Speed and Zero Oscillation

This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic pan... more This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic panel sourced boost converter. The novel MPPT tactic has a high convergence speed and zero oscillation around the MPP under steady state operation, and high tracking speed in response to rapid changing of irradiance. Furthermore, it improves the tracking accuracy, without increase the implementation complexity. The proposed technique has been simulated in Matlab/Simulink environment and compared with some other MPPT techniques, such as Perturbed and observed (P & O), Increment of Conductance (INC) and fuzzy logic (FLC).

Research paper thumbnail of Web of Science Academy - certificates

Web of Science Academy, 2021

Web_of_Science_Academy_-_certificates_Good_Citation_Behavior

Research paper thumbnail of Web of Science Academy - certificates

Web_of_Science_Academy_-_certificates_Good_Citation_Behavior

Research paper thumbnail of Simulation Et Implémentation D’un Système PV sous l’Environnement Proteus Avec Nouvelle Commande MPPT

Simulation Et Implémentation D’un Système PV sous l’Environnement Proteus Avec Nouvelle Commande MPPT, 2019

Ce papier a pour objectif de valoriser une nouvelle technique MPPM (MPPT) pour extraire le maximu... more Ce papier a pour objectif de valoriser une nouvelle technique MPPM (MPPT) pour extraire le maximum de puissance générer par le panneau photovoltaïque. L’environnement Proteus est utilisé pour implémenter et simuler la nouvelle approche MPPM grâce à la carte Arduino UNO et un afficheur LCD. Les résultats de simulation prouvent la meilleure performance de notre commande MPPM par rapport à les deux traditionnelles techniques P&O et INC de dépister le point de puissance maximale PPM sous des conditions de changement brusque de l’éclairement solaire.

Research paper thumbnail of A Novel MPPT Tactic for PV Systems with Fast- Converging Speed and Zero Oscillation

Conference: 2020 5th International Conference on Renewable Energies for Developing Countries (REDEC), 2020

This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic pan... more This paper proposes a novel algorithm for maximum power point tracking (MPPT) in photovoltaic panel sourced boost converter. The novel MPPT tactic has a high convergence speed and zero oscillation around the MPP under steady state operation, and high tracking speed in response to rapid changing of irradiance. Furthermore, it improves the tracking accuracy, without increase the implementation complexity. The proposed technique has been simulated in Matlab/Simulink environment and compared with some other MPPT techniques, such as Perturbed and observed (P&O), Increment of Conductance (INC) and fuzzy logic (FLC).

Research paper thumbnail of An Improved MPPT Tactic for PV system under Temperature variation

An Improved MPPT Tactic for PV system under Temperature variation, 2019

An improved MPPT tactic is proposed in this paper for temperature variation in photovoltaic panel... more An improved MPPT tactic is proposed in this paper for temperature variation in photovoltaic panel sourced boost converter. In this article the improved algorithm has easily added to a novel MPPT tactic proposed in [1]and it can significantly improve the tracking accuracy, without increasing the implementation complexity of the PV systems. The improved technique has been simulated in Matlab/Simulink environment. In addition, the proposed algorithm yielded consistently more favorable results than did the MPPT algorithm in [1].