scholarly journals Investigation of the Polycrystalline Silicon PV Cell Efficiency in 3D Approximation versus Electromagnetic Field under Monochromatic Illumination

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Adama Ouedraogo ◽  
Boubacar Soro ◽  
Ramatou Konate ◽  
Fati Amadou Oumarou ◽  
Dieudonné Joseph Bathiebo
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Wave ◽  
Radio Wave ◽  
Electric Power ◽  
Conversion Efficiency ◽  
Electromagnetic Emission ◽  
Emission Source ◽  
Pv System ◽  
Pv Cell ◽  
Monochromatic Illumination

This manuscript is about the electric output of the silicon (Si) photovoltaic (PV) cell versus the electromagnetic field of a radio wave and a monochromatic illumination in three-dimensional (3D) assumptions. The polarisation direction of the electromagnetic wave and power density are fixed. The electromagnetic wave is provided by electromagnetic emission sources such as the telecommunication, radio, or TV antennas. A PV system is installed in the vicinity of an electromagnetic emission source. The current produced by the PV cell is sensitive to electromagnetic field increase more than the electric voltage. The electromagnetic field causes the decomposition of the current into two components which are a transferred current and a leakage current. The transferred component provides the transmitted current to the external load while the leakage component gives the loss of the carrier charge into the junction. Consequently, this decomposition of the current shares the electric power in transferred electric power and leakage electric power. The transferred electric power is obtained only in the intermediate circuit, and the maximum power point (MPP) shifts to the short circuit situation as the junction dynamic velocity becomes the greatest. However, the leakage electric power corresponds to a loss of the minority carrier’s charge in the junction during the crossing of the junction. This loss causes a Joule heating effect of the junction. The heating of the junction causes the quality degradation of the PV cell mainly due to the electric component. The solar illumination wavelength is presenting the inversion phenomenon with the maximum of the electrical outputs of the silicon PV cell of around 0.70 μm which provides the greatest conversion efficiency. This value has been chosen for the modelling of the radio wave influence. Hence, the conversion efficiency increases when the PV system is far away from the electromagnetic emission source. PV system installation in the vicinity of an electromagnetic emission source is not advised.

Individual energetic processes efficiencies in a polycrystalline silicon PV cell versus electromagnetic field

2021 ◽  
Author(s):  
OUEDRAOGO Adama ◽  
Mahamadi SAVADOGO ◽  
Prince Abdoul Aziz HONADIA ◽  
Sié KAM ◽  
Dieudonné Joseph BATHIEBO
Keyword(s):  
Electromagnetic Field ◽  
Doping Level ◽  
Polycrystalline Silicon ◽  
Production Performance ◽  
Pv System ◽  
Pv Cell ◽  
Overall Efficiency ◽  
Thermodynamic Mechanism ◽  
Thermodynamic Processes ◽  
Cell Versus

Abstract The Photovoltaic (PV) system is often installed near the telecommunication antenna without takes account the performance degradation that the electromagnetic field can cause. The present work provides the recognition about the greatest losses occur which can cause the overall efficiency drop. In fact, the absorption and the thermodynamic processes are more sensitive to the variation of the electromagnetic field more than FF and thermalization processes in presence of the electromagnetic field. The absorption and thermodynamic mechanism are the main cause of the degradation of the polycrystalline silicon PV cell outputs. The PV cell having height base doping level to get a better resistivity to the electromagnetic field must be chosen to improve theses outputs. Then a low electromagnetic field zones must be searched to install the PV system improving its electrical production performance.

Контроль электрофизических параметров метаматериалов методом поверхностных электромагнитных волн

2021 ◽  
pp. 51-67
Author(s):  
А.И. Казьмин ◽  
П.А. Федюнин
Keyword(s):  
Inverse Problem ◽  
Electromagnetic Wave ◽  
Radio Wave ◽  
Local Control ◽  
Negative Refraction ◽  
Test Sample ◽  
Experimental Investigations ◽  
Surface Electromagnetic Wave ◽  
New Radio ◽  
Electrophysical Parameters

Development of metamaterials has led to the search and choice of effective methods of radio-wave nondestructive testing of their electrophysical parameters. The existing approaches to testing based on extracted of effective electrophysical parameters of metamaterials from the coefficients of reflection and transmission of an electromagnetic wave have low reliability and don't provide their local control. We present the new radio-wave method of local control of complex dielectric permittivity and magnetic permeability, as well as the thickness of metamaterial plate on a metal substrate with surface microwaves. The method is based on the solution of inverse problem in the determination of effective electrophysical parameters of metamaterial from the frequency dependence of the attenuation coefficient of the field of a slow surface electromagnetic wave excited in a test sample. The electrophysical parameters of the metamaterial are represented as parametric frequency functions in accordance with the Drude-Lorentz models of dispersion, and the solution of the inverse problem is reduced to minimizing the objective function constructed based on the discrepancy between the experimental and design theoretical values of the attenuation coefficients of surface electromagnetic wave fields on a grid of discrete frequencies. The structure of a measuring complex that implements the proposed method of control is proposed. For the numerical and experimental verification of the method, a sample of a metamaterial plate based on SRR elements with a negative refraction region in the frequency band 10.06–10.64 GHz was investigated. Experimental investigations of the metamaterial demonstrated the theoretical capabilities gained with measurement of the local electrophysical parameters with relative error not greater 10 %.

Material Based Fault Detection Methods for PV Systems

2020 ◽  
Vol 865 ◽  
pp. 111-115
Author(s):  
Khaled Osmani ◽  
Ahmad Haddad ◽  
Thierry Lemenand ◽  
Bruno Castanier ◽  
Mohamad Ramadan
Keyword(s):  
Fault Detection ◽  
Raw Materials ◽  
Raw Material ◽  
Detection Methods ◽  
Critical Aspect ◽  
Pv System ◽  
Detection Techniques ◽  
Pv Systems ◽  
Fault Type ◽  
Pv Cell

The overall efficiency of a PV system is strongly affected by the PV cell raw materials. Since a reliable renewable energy source is expected to produce maximum power with longest lifetime and minimum errors, a critical aspect to bear in mind is the occurrence of PV faults according to raw material types. The different failure scenarios occurring in PV system, decrease its output power, reduce its life expectancy and ban the system from meeting load demands, yielding to severe consecutive blackouts. This paper aims first to present different core materials types, material based fault occurring on the PV cell level and consequently the fault detection techniques corresponding to each fault type.

scholarly journals Influence of degradation in units of PV modules on electric power output of PV system

2018 ◽  
Vol 8 (1) ◽  
pp. 119-127 ◽  
Author(s):  
Takatoshi Hayashi ◽  
Tomoya Nagayama ◽  
Tadashi Tanaka ◽  
Yoshitaka Inui
Keyword(s):  
Electric Power ◽  
Power Output ◽  
Electric Power Output ◽  
Pv System ◽  
Pv Modules

Modeling and Simulation of Grid Connected PV Generation System Using Matlab/Simulink

2017 ◽  
Vol 8 (1) ◽  
pp. 392 ◽  
Author(s):  
Omar Mohammed Benaissa ◽  
Samir Hadjeri ◽  
Sid Ahmed Zidi
Keyword(s):  
Cell Model ◽  
Boost Converter ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Pv System ◽  
External Temperature ◽  
Point Tracking ◽  
Pv Cell ◽  
Power Point ◽  
Grid Side

<span lang="EN-US">This paper describes the Grid connected solar photovoltaique system using DC-DC boost converter and the DC/AC inverter (VSC) to supplies electric power to the utility grid. The model contains a representation of the main components of the system that are two solar arrays of 100 kW, boost converter and the grid side inverter. The paper starts with a system description, in this part we have given a definition and a short overview of every component used in this system and they are taken separately. The PV cell model is easy, accurate, and takes external temperature and solar radiation into consideration. It also proposes a maximum power point tracking (MPPT) algorithm. The algorithm incorporated in a DC/DC converter is used to track the maximum power of PV cell. Finally, the DC/AC inverter (VSC) of three- level is used to regulate the ouput voltage of DC/DC converter and connects the PV cell to the grid. Simulation results show how a solar radiation’s change can affect the power output of any PV system, also they show the control performance and dynamic behavior of the grid connected photovoltaic system.</span>

scholarly journals Comparison of Electric Power Output Observed and Estimated from Floating Photovoltaic Systems: A Case Study on the Hapcheon Dam, Korea

2019 ◽  
Vol 12 (1) ◽  
pp. 276 ◽  
Author(s):  
Jangwon Suh ◽  
Yonghae Jang ◽  
Yosoon Choi
Keyword(s):  
Electric Power ◽  
Power Output ◽  
Water Environment ◽  
Simulation Software ◽  
Cooling Effect ◽  
Design Parameters ◽  
Accurate Estimation ◽  
Electric Power Output ◽  
Pv System ◽  
Feasibility Assessment

An interest in floating photovoltaic (PV) is growing drastically worldwide. To evaluate the feasibility of floating PV projects, an accurate estimation of electric power output (EPO) is a crucial first step. This study estimates the EPO of a floating PV system and compares it with the actual EPO observed at the Hapcheon Dam, Korea. Typical meteorological year data and system design parameters were entered into System Advisor Model (SAM) software to estimate the hourly and monthly EPOs. The monthly estimated EPOs were lower than the monthly observed EPOs. This result is ascribed to the cooling effect of the water environment on the floating PV module, which makes the floating PV efficiency higher than overland PV efficiency. Unfortunately, most commercial PV software, including the SAM, was unable to consider this effect in estimating EPO. The error results showed it was possible to estimate the monthly EPOs with an error of less than 15% (simply by simulation) and 9% (when considering the cooling effect: 110% of the estimated monthly EPOs). This indicates that the approach of using empirical results can provide more reliable estimation of EPO in the feasibility assessment stage of floating PV projects. Furthermore, it is necessary to develop simulation software dedicated to the floating PV system.

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