Simple Data Acquisition of the Current-Voltage and Illumination-Voltage Curves of Solar Cells1

Recart, F.; Mäckel, Helmut; Cuevas, Andrés; Sinton, Ronald A.

doi:10.1109/wcpec.2006.279400

Cited by 18 publications

(13 citation statements)

References 2 publications

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“…This method is only applicable to low‐power modules, since resistors for higher power are hardly available. Several systems in this way have appeared in the literature 5–9. Capacitive load: Another way to trace the I – V curve is based on biasing the module by a large capacitor that functions as load 10–13. First, the capacitor is discharged and when it is connected to the PV module, the last delivers its short circuit current and the capacitor charge starts.…”

Section: Review Of Different Methodsmentioning

confidence: 99%

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Experimental system for current–voltage curve measurement of photovoltaic modules under outdoor conditions

Piliougine

Carretero

Mora‐López

et al. 2011

Progress in Photovoltaics

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This paper describes an experimental system developed in the photovoltaic laboratory at the University of Málaga (Spain) to measure the current-voltage curve of photovoltaic modules under outdoor conditions. The measurement is performed in an automated way by employing commercial instruments controlled by a computer using the GPIB standard. Several modules, selected sequentially through a set of relays, are biased by a four-quadrant power supply while a function generator synchronizes two multimeters in order to acquire voltage and current values. The measurement uncertainties were also estimated. The proposed method for synchronizing the voltage and current measurements ensures that these measurements are performed simultaneously; this means that the estimated uncertainty is lower than those obtained using other previously proposed methods. The main electrical parameters are estimated. A user-friendly application allows the user to configure several parameters, such as bias rate, voltage, and current limits and the number of points of the curve.

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Section: Review Of Different Methodsmentioning

confidence: 99%

“…Capacitive load: Another way to trace the I – V curve is based on biasing the module by a large capacitor that functions as load 10–13. First, the capacitor is discharged and when it is connected to the PV module, the last delivers its short circuit current and the capacitor charge starts.…”

Section: Review Of Different Methodsmentioning

confidence: 99%

Experimental system for current–voltage curve measurement of photovoltaic modules under outdoor conditions

Piliougine

Carretero

Mora‐López

et al. 2011

Progress in Photovoltaics

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show abstract

“…In practice, it is difficult to calibrate such an intense flash intensity on a silicon absorber, but we believe this to be a conservative estimate for a 3200-J Xenon flash lamp. Recart et al achieved about 1000 suns using a similar flash lamp but with only half the energy rating (i.e., 1600 J) [43]. We compute the minority carrier generation depth profiles for a 5500K black body illumination spectrum for various bulk lifetimes using the device simulator PC1D [44].…”

Section: A Dissociationmentioning

confidence: 99%

Imaging As-Grown Interstitial Iron Concentration on Boron-Doped Silicon Bricks via Spectral Photoluminescence

Mitchell

Macdonald

Schön

et al. 2014

IEEE J. Photovoltaics

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Abstract-The interstitial iron concentration measured directly on the side face of a silicon brick after crystallization and brick squaring can give important early and fast feedback regarding its material quality. Interstitial iron is an important defect in crystalline silicon, particularly in directionally solidified ingots. Spectral photoluminescence intensity ratio imaging has recently been demonstrated to independently provide high-resolution bulk lifetime images and is therefore ideally suited to assess spatially variable multicrystalline silicon bricks. Here, we demonstrate this technique to enable imaging of the interstitial iron concentration on boron-doped silicon bricks and thick silicon slabs. We present iron concentration studies for two directionally solidified silicon bricks of which one is a standard multicrystalline and the other is a seeded-growth ingot. This lifetime-based measurement technique is highly sensitive to interstitial iron with detection limits down to concentrations of about 1 × 10 10 cm −3 . Its accuracy is enhanced, as the injection level remains below 2 × 10 12 cm −3 during the measurement and, hence, avoids the influence of injection level dependences on the conversion factor, although it remains dependent on the knowledge of the electron capture cross section of interstitial iron in silicon. Access to both bulk lifetime and dissolved iron concentration provides a valuable parameter set of as-grown crystal quality and the relative recombination fraction of interstitial iron via Shockley-Read-Hall (SRH) analysis. Simulated interstitial iron concentration profiles support the presented experimental data.Index Terms-Bricks, dissolved iron, imaging, ingot, interstitial iron, photoluminescence (PL), silicon.

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“…Some simple and/or low cost electronic circuits have been developed along this decade. In [8] simple and low cost electronic circuits that facilitate the data acquisition of I-V characteristics of PV cells were proposed. The I-V characteristics of PV modules were measured in [9], with a swept method by charging a capacitor.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Instrument for Tracing Current-Voltage Characteristics of Photovoltaic Modules

Leite¹,

Batista²,

Chenlo³

et al. 2024

RE&PQJ

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This paper presents a simple, robust and low-cost instrument for tracing current-and power-voltage characteristics of photovoltaic modules or low voltage strings using either an oscilloscope or a LabVIEW application developed for this purpose. It consists of a flexible electronic circuit, developed from a previous work, based on a fast varying load, built with a power MOSFET, which is controlled by means of a suitable gate-source voltage control signal in order to improve the tracing of current-and powervoltage characteristics on an oscilloscope. The new developments of this work include a low-cost DAQ system and an application developed in LabVIEW, which enhances the functionalities and flexibility of the current-voltage tracer. The robustness was strongly improved in view of field tests for fault diagnosis analysis. All details of the electronic circuit are shown in this paper and experimental results obtained with the new instrument are presented.

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Simple Data Acquisition of the Current-Voltage and Illumination-Voltage Curves of Solar Cells1

Cited by 18 publications

References 2 publications

Experimental system for current–voltage curve measurement of photovoltaic modules under outdoor conditions

Experimental system for current–voltage curve measurement of photovoltaic modules under outdoor conditions

Imaging As-Grown Interstitial Iron Concentration on Boron-Doped Silicon Bricks via Spectral Photoluminescence

Low-Cost Instrument for Tracing Current-Voltage Characteristics of Photovoltaic Modules

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