Search results for " I-V characteristic"

showing 8 items of 8 documents

An accurate one-diode model suited to represent the current-voltage characteristics of crystalline and thin-film photovoltaic modules

2020

Abstract In this paper a new one-diode model, conceived in order to be used to represent the current-voltage curves of both crystalline and thin-film photovoltaic modules, is presented. The model parameters are calculated from the information contained in the datasheets issued by manufactures by means of simple iterative procedures that do not require the assumption of simplifying hypotheses. Some innovative relations describing the dependence of the parameters from the solar irradiance and cell temperature are adopted in order to permit the model to reliably simulate the electrical behaviour of photovoltaic devices operating in real conditions. The ability of the model to calculate the cur…

Amorphous siliconMaterials scienceSettore ING-IND/11 - Fisica Tecnica Ambientale060102 archaeologyMaximum power principleRenewable Energy Sustainability and the Environment020209 energyPhotovoltaic systemMechanical engineering06 humanities and the arts02 engineering and technologySolar irradianceCopper indium gallium selenide solar cellsPower (physics)Monocrystalline siliconThin-film photovoltaic modules One-diode model Five-parameter model I-V characteristics Solar energychemistry.chemical_compoundchemistry0202 electrical engineering electronic engineering information engineering0601 history and archaeologyDiode
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A standard-compliant prototype for PV module curve detection

2014

In this paper, a prototype for PV module curve detection which features low cost and size and ensures high accuracy is proposed. The proposed architecture is based on a buck-boost converter in open-loop configuration. The proposed architecture is fully compliant with actual standard IEC60904. The duty-cycle control algorithm and its own effects on system performances are accurately investigated. The comparison of different duty-cycle patterns is carried out and performance evaluation is performed. Simulation results are shown to perform a valuable comparison of control algorithms. Preliminary experimental results on a laboratory prototype are presented.

EngineeringControl algorithmPhotovoltaic I-V characteristicbusiness.industryBuck-boost converterMPPTSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciPV modulePhotovoltaic generatorArchitecturePV module Photovoltaic generator photovoltaic I-V characteristics buck-boost converter MPPT electronic load.businessComputer hardwareSimulationElectronic load
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An efficient analytical approach for obtaining a five parameters model of photovoltaic modules using only reference data

2013

Exploiting the equivalent one-diode circuit of a photovoltaic (PV) module, this paper proposes a novel and fully analytical model to predict the electrical performance upon solar irradiance intensity and PV module temperature. The model refers essentially to an equivalent circuit governed by five parameters and the extraction of them permits to describe the current–voltage curve of the PV panel and consequently permits to assess the energy output of PV modules. The proposed model extracts the five characteristic parameters using only exact analytical relationship and tabular data always available such as short-circuit current, open circuit voltage and the Maximum Power Point (MPP). The diff…

EngineeringMathematical optimizationSettore ING-IND/11 - Fisica Tecnica AmbientaleOptimization problemMaximum power principlebusiness.industryMechanical EngineeringPhotovoltaic systemReference data (financial markets)Building and ConstructionManagement Monitoring Policy and LawSystem of linear equationsSizingGeneral EnergyEquivalent circuitPhotovoltaic panel five parameter model reference data I-V characteristicbusinessAlgorithmEnergy (signal processing)Applied Energy
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A device for PV modules I-V characteristic detection

2013

In this paper an electronic load suitable for the PV module I-V characteristic curve fast detection is presented. This device is designed in agreement with the IEC 82 Techinical Committee Standard since it allows the detection of the characteristic starting from voltage values even lower than 3% of the PV module open circuit voltage. The device main features are short time characteristc detection (2 s), limited ripple of the detected characteristic and low cost. Its validation is carried out by comparing measured data with data from simulations. Simulations are carried out considering two different commercial PV modules and by implementing in Matlab-Simulink environment the four lumped para…

EngineeringSettore ING-IND/11 - Fisica Tecnica Ambientalebusiness.industryOpen-circuit voltageRippleElectronic load four lumped parameters model I-V Characteristic Curves Maximum Power PointDevice PropertiesSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciElectronic loadElectronic engineeringIec standardsbusinessVoltageNominal power (photovoltaic)
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Design, sizing and set up of a specific low cost electronic load for PV modules characterization

2013

In this paper, the design, sizing and set-up of a specific low cost electronic load, based on a DC-DC step-down converter, suitable for the PV module I - V characteristic curves determination, is described. In particular, for its set up, a low cost and user friendly micro-controller has been employed in order to generate the PWM signal. The measures carried out connecting the electronic load prototype to a commercial PV module are here presented and discussed. The conceived electronic load has allowed the determination of 80% of the PV module characteristic curves in 2 s. This low measurement time, lower than the time intervals in which weather conditions may change, allows to assume as con…

EngineeringSignal generatorbusiness.industryRippleSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciSignalSizingElectronic Load PV modules I-V characteristic curvesSet (abstract data type)MicrocontrollerElectronic engineeringMATLABbusinesscomputerPulse-width modulationcomputer.programming_language2013 Eighth International Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER)
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Assessment of the Usability and Accuracy of Two-Diode Models for Photovoltaic Modules

2017

Many diode-based equivalent circuits for simulating the electrical behaviour of photovoltaic (PV) cells and panels are reported in the scientific literature. Two-diode equivalent circuits, which require more complex procedures to calculate the seven model parameters, are less numerous. The model parameters are generally calculated using the data extracted from the datasheets issued by the PV panel manufactures and adopting simplifying hypotheses and numerical solving techniques. A criterion for rating both the usability and accuracy of two-diode models is proposed in this paper with the aim of supporting researchers and designers, working in the area of PV systems, to select and use a model…

I-V characteristicEngineeringControl and Optimization020209 energyEnergy Engineering and Power TechnologyModel parameters02 engineering and technologySolar irradianceTwo-diode equivalent circuitSolar energyphotovoltaic modules; two-diode equivalent circuit; I-V characteristics; solar energy0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringEngineering (miscellaneous)SimulationDiodeSettore ING-IND/11 - Fisica Tecnica AmbientaleRenewable Energy Sustainability and the Environmentbusiness.industryComputer Science (all)Photovoltaic systemUsabilityI-V characteristics; Photovoltaic modules; Solar energy; Two-diode equivalent circuit; Computer Science (all)Power (physics)Photovoltaic moduleEquivalent circuitbusinessConstant (mathematics)Energy (miscellaneous)Energies
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A Criterion for Rating the Usability and Accuracy of the One-Diode Models for Photovoltaic Modules

2016

In selecting a mathematical model for simulating physical behaviours, it is important to reach an acceptable compromise between analytical complexity and achievable precision. With the aim of helping researchers and designers working in the area of photovoltaic systems to make a choice among the numerous diode-based models, a criterion for rating both the usability and accuracy of one-diode models is proposed in this paper. A three-level rating scale, which considers the ease of finding the data used by the analytical procedure, the simplicity of the mathematical tools needed to perform calculations and the accuracy achieved in calculating the current and power, is used. The proposed criter…

I-V characteristicsEngineeringI-V characteristicControl and Optimization020209 energysolar energyEnergy Engineering and Power Technology02 engineering and technologySolar irradiancelcsh:TechnologyRating scale0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringEngineering (miscellaneous)SimulationPhotovoltaic modules; one-diode equivalent circuit; five-parameter model; I-V characteristics; solar energySettore ING-IND/11 - Fisica Tecnica Ambientalephotovoltaic modulesRenewable Energy Sustainability and the Environmentbusiness.industrylcsh:Tphotovoltaic modules; one-diode equivalent circuit; five-parameter model; <i>I-V</i> characteristics; solar energyPhotovoltaic systemUsability021001 nanoscience & nanotechnologySolar energyone-diode equivalent circuitPower (physics)Photovoltaic moduleEquivalent circuitfive-parameter model0210 nano-technologybusinessConstant (mathematics)Energy (miscellaneous)Energies; Volume 9; Issue 6; Pages: 427
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A novel approach for parameters determination in four lumped PV parametric model with operative range evaluations

2013

The paper presents a novel numerical approach for the parameters determination of crystalline silicon PV models four lumped parameters equivalent circuit. The novel approach basically deals with a new method, alternative to the iterative one known in literature, to calculate the series resistance. Particularly, it allows the evaluation of the lumped parameters on the basis of the manufacturer’s datasheet. The new approach has been validated both in the Maximum Power Point (MPP) and close to it by comparing values and curves obtained by means of the model implementation in Matlab/Simulink environment with those related to some five parameters models and manufacturer curves. Results show that…

Settore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricifive lumped parameters model four lumped parameters model I-V characteristic curves Maximum Power Point silicon photovoltaic modules
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