Hanane Yatimi - Academia.edu (original) (raw)

Papers by Hanane Yatimi

This paper represents the Method of Moments (MoM) for the evaluation of the linear charge density... more This paper represents the Method of Moments (MoM) for the evaluation of the linear charge density on finite straight segment of thin charged conducting wire. We assume that the charge density piecewise constant over the length and the electric potential are is one volt. The conducting structures are modeled by planar sub domains. The Method of Moments is employing pulse and delta as a basis and testing function, respectively, is used for analysis. The exact formulation for the matrix element is evaluated for sub domains, and we obtain a symmetric matrix of Toeplitz.

International Journal of System Dynamics Applications, 2018

In this article, on the basis of studying the mathematical model of a PV system, a maximum power ... more In this article, on the basis of studying the mathematical model of a PV system, a maximum power point tracking (MPPT) technique with variable weather conditions is proposed. The main objective is to make a full utilization of the output power of a PV solar cell operating at the maximum power point (MPP). To achieve this goal, the incremental conductance (IC) MPPT technique is applied to an off-grid PV system under varying climatic conditions, in particular, solar irradiance and temperature that are locally measured in Northern Morocco. The output power behavior and the performance of the system using this technique have been analyzed through computer simulations to illustrate the validity of the designed method under the effect of real working conditions.

International Journal of Electrical and Computer Engineering (IJECE), 2013

Solar Energy, 2016

Abstract The energy produced by the photovoltaic systems is very intermittent and depends enormou... more Abstract The energy produced by the photovoltaic systems is very intermittent and depends enormously on the weather conditions. As the output characteristic of a photovoltaic (PV) module is nonlinear and changes with solar irradiance and the cell’s temperature, its maximum power point (MPP) is not constant. Therefore, a maximum power point tracking (MPPT) technique is needed to draw peak power from the PV module to maximize the produced energy under varying conditions. This paper presents an assessment and control of a stand-alone photovoltaic system with battery storage using the robust sliding mode MPPT control for DC/DC boost converter operating in continuous conduction mode; under varying meteorological conditions. Simulation results are presented to verify the simplicity, the stability and the robustness of this control technique against changes in weather conditions.

2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)

In the future solar energy will be very important energy source. More than 45% of necessary energ... more In the future solar energy will be very important energy source. More than 45% of necessary energy in the world will be generated by photovoltaic module. Therefore it is necessary to concentrate our forces in order to reduce the application costs and to increment their performances. In order to reach this last aspect, it is important to note that the output characteristic of a photovoltaic module is nonlinear and changes with solar radiation and temperature. Therefore a maximum power point tracking (MPPT) technique is needed to track the peak power in order to make full utilization of PV array output power under varying conditions. This paper presents two widely-adopted MPPT algorithms, perturbation & observation (P&O) and incremental conductance (IC). These algorithms are widely used in PV systems as a result of their easy implementation as well as their low cost. These techniques were analyzed and their performance was evaluated by using the Matlab tool Simulink.

International Journal of Innovation and Applied Studies, 2016

Photovoltaic (PV) model is used in a simulation study to validate the system design of a PV syste... more Photovoltaic (PV) model is used in a simulation study to validate the system design of a PV system. This paper presents a step-by-step (detailed modeling) procedure for the simulation of photovoltaic modules with numerical values, using Matlab/Simulink software package. The proposed model is developed based on the mathematical model of the PV module, which is based on that of an elementary PV solar cell employing One-diode equivalent circuit. A particular Polycrystalline PV module is selected for the analysis of the developed model. The essential parameters required for modeling the system are taken from datasheets. The output current and power characteristic curves highly depend on some climatic factors such as solar radiation and temperature, are obtained by simulation for the selected module with the output power of 250 W and discussed.

Int. J. Autom. Control., 2021

Maximum power point tracking (MPPT) methods are widely used with PV solar systems to maximize pow... more Maximum power point tracking (MPPT) methods are widely used with PV solar systems to maximize power extraction under variants whether conditions. On another hand the system stability around the maximum power point depends on the robustness of the used method for better load charging conditions. This paper presents a non-linear backstepping controller, based on the Lyapunov function, and applied to an autonomous PV system as a MPPT controller, to extract its maximum power, under simultaneous changes in solar radiation and temperature. A DC-DC boost converter is used as a bridge between the PV module and the load. To validate the robustness of the proposed backstepping controller, the system outcomes under variant meteorological conditions using both the backstepping controller and the wellknown incremental conductance method are compared. The results based on analyzing and interpreting the power, voltage and current curves and system behavior, reveal that by using the backstepping co...

The main purpose of the present work is to develop a model for an ideal solar cell of a photovolt... more The main purpose of the present work is to develop a model for an ideal solar cell of a photovoltaic module by using the MATLAB simulation program. The simulation is carried out in order to evaluate the influence of the variation of the temperature of the solar cell, solar irradiance, the diode ideality factor and the energy gap on the I-V and P-V characteristics of the PV cell. This model is based on mathematical equations, including the photocurrent, saturation current, voltage and the output power. The efficiency and the fill factor have been calculated and plotted against various values of the four main considered parameters.

2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)

One of the most important concerns about the control of the PV system is the maximum power point ... more One of the most important concerns about the control of the PV system is the maximum power point tracking algorithms, their implementation in various electronic devices for multiple technologies, and then the improvement of the quality and the accuracy of the outcomes using different techniques. This paper presents a programmable logic controller software design for a standalone photovoltaic system, and a comparison analysis between the incremental conductance and the perturb and observe MPPT algorithms based on an automation approach. The simulation using an automation software (Siemens TIA portal) and the experimental implementation using an automation PLC (S7-1200 PLC) reveals that the later presents a good MPP tracker for both algorithms; the only difference was that the IC algorithm shows better performance and lower oscillation around the maximum power point. The implementation of the incremental conductance on the PLC program has many advantages compared to the perturb and observe algorithm: mended tracking of the maximum power point despite the various and the fast-changing on weather conditions, fewer oscillations around the maximum power point, fast response to the change on temperature and irradiation levels, better stability for battery charging signals. The entire PV system is simulating in Siemens total integration automation interface (TIA portal) and the results are plotting using Siemens Human Machine Interface (WinCC).

Renewable Energy in the Service of Mankind Vol II

The photovoltaic (PV) model is used in a simulation study to validate the system design of a PV s... more The photovoltaic (PV) model is used in a simulation study to validate the system design of a PV system. This work presents the modeling and the simulation of the PV module using the Matlab environment taking into consideration the measurements carried out under real working conditions in Tetouan (northern Morocco). The model is developed based on the mathematical model of the PV module. A particular PV module is selected for the analysis of the developed model. The three-dimensional profile of solar radiation used in this work is presented. The output current and power characteristic curves, which highly depend on some climatic factors such as solar radiation and temperature, are obtained by simulation for the selected module and discussed. The instantaneous power production characteristics of the 12 months of the year are presented and interpreted.

2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)

The need of more secured and environmental energy is becoming a necessity and priority in an envi... more The need of more secured and environmental energy is becoming a necessity and priority in an environment suffering from serious problems due to technological development. Since the Smart Grid is a promising alternative that supports green energy and enhances a better management of electricity, the security side has became one of the major and critical associated issues in building the communication network in the microgrid.In this paper we will present the Smart Grid Cyber security challenges and propose a distributed algorithm that face one of the biggest problems threatening the smart grid which is fires.

2019 5th International Conference on Optimization and Applications (ICOA)

This paper proposes a PV modeling of polycrystalline and mono-crystalline PV modules using an aut... more This paper proposes a PV modeling of polycrystalline and mono-crystalline PV modules using an automation PLC for MPPT purposes. The SIEMENS S7-300 PLC will be used in the present study. To validate the proposed modeling approach, the I-V and P-V characteristic curves of the two technologies will be simulated in SIEMENS WINCC flexible runtimes.

2019 International Conference of Computer Science and Renewable Energies (ICCSRE)

This paper proposes a novel modeling approach of photovoltaic (PV) module using SIEMENS industria... more This paper proposes a novel modeling approach of photovoltaic (PV) module using SIEMENS industrial automation PLC S7-300. The main contribution of this work is the modeling of PV module using the automation PLC and the study of the impact of the diode ideality factor variation on the PV module characteristics. To validate the accuracy of the proposed approach, the datasheet’s I-V curves for several irradiation levels at 25°C of a multi-crystalline PV module will be compared to the simulated I-V and P-V curves obtained by SIEMENS WinCC flexible.

Procedia Manufacturing

Abstract This paper presents two MPPT (Maximum Power Point Tracking) techniques, the incremental ... more Abstract This paper presents two MPPT (Maximum Power Point Tracking) techniques, the incremental conductance (IC) and the sliding mode control (SMC), applied to an autonomous photovoltaic system, under varying solar irradiance. The whole system is simulated in Matlab/Simulink environment. Simulation results show that the IC technique provides good efficiency under rapidly changing climatic conditions, but the accuracy for finding the MPP is quite low. Whereas, the SMC technique provides good performance under the climatic changes in term of stability and robustness to solar irradiance variation. Through simulations, SMC can accurately track the MPP of the PV module and then improve the PV system efficiency, better than IC technique can.

Procedia Manufacturing

Abstract The output characteristic of a photovoltaic (PV) module is nonlinear and changes with so... more Abstract The output characteristic of a photovoltaic (PV) module is nonlinear and changes with solar irradiance and cell’s temperature. Thus, its maximum power point (MPP) is not constant. The use of Maximum Power Point Tracking (MPPT) techniques is primordial. This paper highlights two MPPT techniques: the perturb and observe (P&O) and the sliding mode control (SMC), applied to a standalone PV system under varying climatic conditions. Simulation results show that SMC provides good performance under the climatic changes in term of stability and robustness to irradiance and temperature variations compared to P&O.

According to the nonlinear power-voltage characteristic of the photovoltaic (PV) solar cell, we n... more According to the nonlinear power-voltage characteristic of the photovoltaic (PV) solar cell, we need to track maximum output power instantly. The aim of this paper is uphold the PV cell operating at its maximum power point (MPP) and then make full utilization of its output power. For this reason, the maximum power point tracking (MPPT) incremental conductance (IC) is proposed to draw peak power from the PV cell to maximize the produced energy under varying meteorological conditions. The performance of the proposed technique has been analyzed through computer simulations to illustrate the validity of the designed method under various climatic conditions.

International Journal of Electronics and Electrical Engineering

The study of photovoltaic systems (PV) in an efficient manner requires a precise knowledge of the... more The study of photovoltaic systems (PV) in an efficient manner requires a precise knowledge of the I-V and P-V characteristic curves of PV modules. Therefore, our work presents the modeling and simulation of PV module using the Matlab environment and taking into consideration the measurements carried out under real working conditions in Tetouan (Northern Morocco). The model is developed based on the mathematical model of the PV module, which is based on that of an elementary PV solar cell. A particular PV module is selected for the analysis of developed model. The essential parameters required for modeling the system are taken from datasheets. I-V and P-V characteristic curves highly depend on some climatic factors such as solar radiation and temperature that are locally measured for the typical clear day of two months June (summer) and December (winter), are obtained by simulation for the selected module and discussed. This tool will also be used to determinate the optimal design of such a system for many applications.

This paper represents the Method of Moments (MoM) for the evaluation of the linear charge density... more This paper represents the Method of Moments (MoM) for the evaluation of the linear charge density on finite straight segment of thin charged conducting wire. We assume that the charge density piecewise constant over the length and the electric potential are is one volt. The conducting structures are modeled by planar sub domains. The Method of Moments is employing pulse and delta as a basis and testing function, respectively, is used for analysis. The exact formulation for the matrix element is evaluated for sub domains, and we obtain a symmetric matrix of Toeplitz.

International Journal of System Dynamics Applications, 2018

In this article, on the basis of studying the mathematical model of a PV system, a maximum power ... more In this article, on the basis of studying the mathematical model of a PV system, a maximum power point tracking (MPPT) technique with variable weather conditions is proposed. The main objective is to make a full utilization of the output power of a PV solar cell operating at the maximum power point (MPP). To achieve this goal, the incremental conductance (IC) MPPT technique is applied to an off-grid PV system under varying climatic conditions, in particular, solar irradiance and temperature that are locally measured in Northern Morocco. The output power behavior and the performance of the system using this technique have been analyzed through computer simulations to illustrate the validity of the designed method under the effect of real working conditions.

International Journal of Electrical and Computer Engineering (IJECE), 2013

Solar Energy, 2016

Abstract The energy produced by the photovoltaic systems is very intermittent and depends enormou... more Abstract The energy produced by the photovoltaic systems is very intermittent and depends enormously on the weather conditions. As the output characteristic of a photovoltaic (PV) module is nonlinear and changes with solar irradiance and the cell’s temperature, its maximum power point (MPP) is not constant. Therefore, a maximum power point tracking (MPPT) technique is needed to draw peak power from the PV module to maximize the produced energy under varying conditions. This paper presents an assessment and control of a stand-alone photovoltaic system with battery storage using the robust sliding mode MPPT control for DC/DC boost converter operating in continuous conduction mode; under varying meteorological conditions. Simulation results are presented to verify the simplicity, the stability and the robustness of this control technique against changes in weather conditions.

2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)

In the future solar energy will be very important energy source. More than 45% of necessary energ... more In the future solar energy will be very important energy source. More than 45% of necessary energy in the world will be generated by photovoltaic module. Therefore it is necessary to concentrate our forces in order to reduce the application costs and to increment their performances. In order to reach this last aspect, it is important to note that the output characteristic of a photovoltaic module is nonlinear and changes with solar radiation and temperature. Therefore a maximum power point tracking (MPPT) technique is needed to track the peak power in order to make full utilization of PV array output power under varying conditions. This paper presents two widely-adopted MPPT algorithms, perturbation & observation (P&O) and incremental conductance (IC). These algorithms are widely used in PV systems as a result of their easy implementation as well as their low cost. These techniques were analyzed and their performance was evaluated by using the Matlab tool Simulink.

International Journal of Innovation and Applied Studies, 2016

Photovoltaic (PV) model is used in a simulation study to validate the system design of a PV syste... more Photovoltaic (PV) model is used in a simulation study to validate the system design of a PV system. This paper presents a step-by-step (detailed modeling) procedure for the simulation of photovoltaic modules with numerical values, using Matlab/Simulink software package. The proposed model is developed based on the mathematical model of the PV module, which is based on that of an elementary PV solar cell employing One-diode equivalent circuit. A particular Polycrystalline PV module is selected for the analysis of the developed model. The essential parameters required for modeling the system are taken from datasheets. The output current and power characteristic curves highly depend on some climatic factors such as solar radiation and temperature, are obtained by simulation for the selected module with the output power of 250 W and discussed.

Int. J. Autom. Control., 2021

Maximum power point tracking (MPPT) methods are widely used with PV solar systems to maximize pow... more Maximum power point tracking (MPPT) methods are widely used with PV solar systems to maximize power extraction under variants whether conditions. On another hand the system stability around the maximum power point depends on the robustness of the used method for better load charging conditions. This paper presents a non-linear backstepping controller, based on the Lyapunov function, and applied to an autonomous PV system as a MPPT controller, to extract its maximum power, under simultaneous changes in solar radiation and temperature. A DC-DC boost converter is used as a bridge between the PV module and the load. To validate the robustness of the proposed backstepping controller, the system outcomes under variant meteorological conditions using both the backstepping controller and the wellknown incremental conductance method are compared. The results based on analyzing and interpreting the power, voltage and current curves and system behavior, reveal that by using the backstepping co...

The main purpose of the present work is to develop a model for an ideal solar cell of a photovolt... more The main purpose of the present work is to develop a model for an ideal solar cell of a photovoltaic module by using the MATLAB simulation program. The simulation is carried out in order to evaluate the influence of the variation of the temperature of the solar cell, solar irradiance, the diode ideality factor and the energy gap on the I-V and P-V characteristics of the PV cell. This model is based on mathematical equations, including the photocurrent, saturation current, voltage and the output power. The efficiency and the fill factor have been calculated and plotted against various values of the four main considered parameters.

2021 International Conference on Electrical, Communication, and Computer Engineering (ICECCE)

One of the most important concerns about the control of the PV system is the maximum power point ... more One of the most important concerns about the control of the PV system is the maximum power point tracking algorithms, their implementation in various electronic devices for multiple technologies, and then the improvement of the quality and the accuracy of the outcomes using different techniques. This paper presents a programmable logic controller software design for a standalone photovoltaic system, and a comparison analysis between the incremental conductance and the perturb and observe MPPT algorithms based on an automation approach. The simulation using an automation software (Siemens TIA portal) and the experimental implementation using an automation PLC (S7-1200 PLC) reveals that the later presents a good MPP tracker for both algorithms; the only difference was that the IC algorithm shows better performance and lower oscillation around the maximum power point. The implementation of the incremental conductance on the PLC program has many advantages compared to the perturb and observe algorithm: mended tracking of the maximum power point despite the various and the fast-changing on weather conditions, fewer oscillations around the maximum power point, fast response to the change on temperature and irradiation levels, better stability for battery charging signals. The entire PV system is simulating in Siemens total integration automation interface (TIA portal) and the results are plotting using Siemens Human Machine Interface (WinCC).

Renewable Energy in the Service of Mankind Vol II

The photovoltaic (PV) model is used in a simulation study to validate the system design of a PV s... more The photovoltaic (PV) model is used in a simulation study to validate the system design of a PV system. This work presents the modeling and the simulation of the PV module using the Matlab environment taking into consideration the measurements carried out under real working conditions in Tetouan (northern Morocco). The model is developed based on the mathematical model of the PV module. A particular PV module is selected for the analysis of the developed model. The three-dimensional profile of solar radiation used in this work is presented. The output current and power characteristic curves, which highly depend on some climatic factors such as solar radiation and temperature, are obtained by simulation for the selected module and discussed. The instantaneous power production characteristics of the 12 months of the year are presented and interpreted.

2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)

The need of more secured and environmental energy is becoming a necessity and priority in an envi... more The need of more secured and environmental energy is becoming a necessity and priority in an environment suffering from serious problems due to technological development. Since the Smart Grid is a promising alternative that supports green energy and enhances a better management of electricity, the security side has became one of the major and critical associated issues in building the communication network in the microgrid.In this paper we will present the Smart Grid Cyber security challenges and propose a distributed algorithm that face one of the biggest problems threatening the smart grid which is fires.

2019 5th International Conference on Optimization and Applications (ICOA)

This paper proposes a PV modeling of polycrystalline and mono-crystalline PV modules using an aut... more This paper proposes a PV modeling of polycrystalline and mono-crystalline PV modules using an automation PLC for MPPT purposes. The SIEMENS S7-300 PLC will be used in the present study. To validate the proposed modeling approach, the I-V and P-V characteristic curves of the two technologies will be simulated in SIEMENS WINCC flexible runtimes.

2019 International Conference of Computer Science and Renewable Energies (ICCSRE)

This paper proposes a novel modeling approach of photovoltaic (PV) module using SIEMENS industria... more This paper proposes a novel modeling approach of photovoltaic (PV) module using SIEMENS industrial automation PLC S7-300. The main contribution of this work is the modeling of PV module using the automation PLC and the study of the impact of the diode ideality factor variation on the PV module characteristics. To validate the accuracy of the proposed approach, the datasheet’s I-V curves for several irradiation levels at 25°C of a multi-crystalline PV module will be compared to the simulated I-V and P-V curves obtained by SIEMENS WinCC flexible.

Procedia Manufacturing

Abstract This paper presents two MPPT (Maximum Power Point Tracking) techniques, the incremental ... more Abstract This paper presents two MPPT (Maximum Power Point Tracking) techniques, the incremental conductance (IC) and the sliding mode control (SMC), applied to an autonomous photovoltaic system, under varying solar irradiance. The whole system is simulated in Matlab/Simulink environment. Simulation results show that the IC technique provides good efficiency under rapidly changing climatic conditions, but the accuracy for finding the MPP is quite low. Whereas, the SMC technique provides good performance under the climatic changes in term of stability and robustness to solar irradiance variation. Through simulations, SMC can accurately track the MPP of the PV module and then improve the PV system efficiency, better than IC technique can.

Procedia Manufacturing

Abstract The output characteristic of a photovoltaic (PV) module is nonlinear and changes with so... more Abstract The output characteristic of a photovoltaic (PV) module is nonlinear and changes with solar irradiance and cell’s temperature. Thus, its maximum power point (MPP) is not constant. The use of Maximum Power Point Tracking (MPPT) techniques is primordial. This paper highlights two MPPT techniques: the perturb and observe (P&O) and the sliding mode control (SMC), applied to a standalone PV system under varying climatic conditions. Simulation results show that SMC provides good performance under the climatic changes in term of stability and robustness to irradiance and temperature variations compared to P&O.

According to the nonlinear power-voltage characteristic of the photovoltaic (PV) solar cell, we n... more According to the nonlinear power-voltage characteristic of the photovoltaic (PV) solar cell, we need to track maximum output power instantly. The aim of this paper is uphold the PV cell operating at its maximum power point (MPP) and then make full utilization of its output power. For this reason, the maximum power point tracking (MPPT) incremental conductance (IC) is proposed to draw peak power from the PV cell to maximize the produced energy under varying meteorological conditions. The performance of the proposed technique has been analyzed through computer simulations to illustrate the validity of the designed method under various climatic conditions.

International Journal of Electronics and Electrical Engineering

The study of photovoltaic systems (PV) in an efficient manner requires a precise knowledge of the... more The study of photovoltaic systems (PV) in an efficient manner requires a precise knowledge of the I-V and P-V characteristic curves of PV modules. Therefore, our work presents the modeling and simulation of PV module using the Matlab environment and taking into consideration the measurements carried out under real working conditions in Tetouan (Northern Morocco). The model is developed based on the mathematical model of the PV module, which is based on that of an elementary PV solar cell. A particular PV module is selected for the analysis of developed model. The essential parameters required for modeling the system are taken from datasheets. I-V and P-V characteristic curves highly depend on some climatic factors such as solar radiation and temperature that are locally measured for the typical clear day of two months June (summer) and December (winter), are obtained by simulation for the selected module and discussed. This tool will also be used to determinate the optimal design of such a system for many applications.