10 research outputs found

    Modeling and Simulation of a Solar Power Source for a Clean Energy without Pollution

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    Photovoltaic cell generation is the technique which uses photovoltaic cell to convert solar energy into electrical energy. Now  a  days  ,the photovoltaic  generation  is  developing  increasingly  fast  as  a  renewable  energy  source. The functioning of a photovoltaic cell as the power generator is equivalent to an electric circuit containing a current generator, diode, series resistance and shunt resistance. This paper presents a modeling and simulation of a photovoltaic system constitutes of a generator (PVG), DC-DC converter (boost chopper) to transfer the maximum power to a base transmitter station. The temperature and irradiance effects on the PVG will be studied, particularly on the variables such as the short circuit current Icc, the open circuit voltage Voc, the performance η and the fill factor FF. Depending on the load (BTS, I=60A, V=48V) profile and climatic factors influencing, we can find a highly gap between the maximum power supplied by the PVG and that actually transferred to the BTS. A maximum power point tracker (MPPT) based on a boost converter commanded by a Pulse Width Modulation (PWM) is used for extracting the maximum power from the PVG. Thus, a real time tracking of the optimal point of functioning (MPP: Maximum Power Point) is necessary to optimize the efficiency on the system. The modeling and simulation of the system (PVG, boost converter, PWM and MPPT algorithm Perturbation and Observation P&O) is then made with Matlab/Simulink software.DOI:http://dx.doi.org/10.11591/ijece.v3i5.363

    Modeling and simulation of a solar power source at 3kW for a clean energy without pollution

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    The air pollution was much worse, and it became necessary to replace the fossil energy sources by the renewable energies. The causes are related to reserves that can be exhausted, to pollution and their impacts on the environment. Production of toxic gases from the combustion of coal for the effect of increasing the temperature of the earth. Solar energy is a clean and inexhaustible excellent alternative. We propose a modeling and simulation of a solar system consists of a photovoltaic generator (PVG), a boost chopper, to supply a telecommunications relay station (BTS), According to the load characteristics (I = 60A, V = 48V) DC (3 kW). A stage adaptation composed of this chopper controlled by a PWM controller (Pulse Width Modulation) is used to control the optimal operating point (MPPT) and optimize system performance using Matlab / Simulink

    Modeling and simulation of a solar power source at 3kW for a clean energy without pollution

    No full text
    The air pollution was much worse, and it became necessary to replace the fossil energy sources by the renewable energies. The causes are related to reserves that can be exhausted, to pollution and their impacts on the environment. Production of toxic gases from the combustion of coal for the effect of increasing the temperature of the earth. Solar energy is a clean and inexhaustible excellent alternative. We propose a modeling and simulation of a solar system consists of a photovoltaic generator (PVG), a boost chopper, to supply a telecommunications relay station (BTS), According to the load characteristics (I = 60A, V = 48V) DC (3 kW). A stage adaptation composed of this chopper controlled by a PWM controller (Pulse Width Modulation) is used to control the optimal operating point (MPPT) and optimize system performance using Matlab / Simulink

    Modeling and Simulation of photovoltaic Module using MATLAB/SIMULINK

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    The study of photovoltaic system (PV) in an efficient manner requires a precise knowledge of the I-V and P-V characteristics curves of PV module. Therefore, our work presents the modeling and simulation of PV module using the Matlab/Simulink package. 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 characteristics curves highly depend on some climatic factors such as irradiation and temperature, are obtained and discussed by simulation for the selected module

    Solar photovoltaic/thermal air collector with mirrors for optimal tilts

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    This work is the result of a study of a photovoltaic/thermal air collector that concentrates solar radiation using two mobile mirrors to enhance electrical and thermal energy. The study is made for the site of Tetouan (Morocco) (longitude=-5°, latitude=35.25°) for a daily variation during typical days in May, June, September, and December, days considered as clear sky. To prove the effectiveness of the mirrors on the production of both electrical and thermal energy by the collector, we compared their electrical and thermal efficiency in two cases, without and with mirrors at the optimal positions. We validate the obtained simulation results by comparing them to the results from experimental studies published in the literature, for which a strong agreement was obtained. The model estimates the solar energy received by the hybrid collector during the day, to optimize the performance of the fixed collector, we have searched for the values of the optimal daily tilt angles of the two mirrors which allowed us to enhance the quantity of incoming solar radiation on the collector. The tilt angles depend on the sun’s elevation angle, the azimuth angle for typical days of the year
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