A Review of the Main Methods to trace the I-V Characteristic Curve of PV Sources

Campos, Rafael; Sakô, Elson Yoiti; Reis, Marcos Vinícios Gomes dos; Villalva, Marcelo Gradella

doi:10.1109/induscon.2018.8627254

Cited by 10 publications

(4 citation statements)

References 36 publications

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“…The I-V curves given by the manufacturers remain indicative. Various methods are used in I-V solar tracers [10][11][12][13]. A first categorization of I-V tracers can be made, depending on whether climate data sensors are used.…”

Section: Introductionmentioning

confidence: 99%

I-V Characteristics Measuring System for PV Generator based on PDM Inverter

Sandali¹,

Chériti²

2024

RE&PQJ

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This paper presents a new method to characterize photovoltaic panels. The power electronic converter used is a Pulse Density Modulation (PDM) inverter. In this method, the inverter plays two roles: First, it is a DC inductor emulator. Second, it allows assembly between inductive and capacitive load methods. The PDM inverter is adapted to operate at very high switching frequency. In this application, it avoids the difficulties of making DC inductors with high DC current and its control remains very simple. This is an asset for increasing the power, power density and rapidity of tracers based on this method. The main disadvantage of this method, compared to methods based on DC-DC converter, is the use of twice as many semiconductor components. But this disadvantage can be compensated by a gain on reactive components. The simulations and experimental results of the proposed system are shown.

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Section: Introductionmentioning

confidence: 99%

I-V Characteristics Measuring System for PV Generator based on PDM Inverter

Sandali¹,

Chériti²

2024

RE&PQJ

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“…Various I–V tracer techniques have been developed and proposed to trace the I–V characteristics and ensure high accuracy and fast speeds [22, 23 ]. The I–V curve tracer developed in [21 ] used an electronic load that has several transistors in the Darlington pair.…”

Section: Introductionmentioning

confidence: 99%

Multi‐channel photovoltaic current–voltage ( I – V ) curve tracer employing adaptive‐sampling‐rate method

Rivai

Rahim

Elias

et al. 2020

IET sci. meas. technol.

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In this study, a multi‐channel I–V curve tracer with the capability of measuring multiple photovoltaic (PV) modules has been proposed. An adaptive‐sampling‐rate method has been developed to enhance the I–V tracer's performance in terms of acquisition speed and data resolution in which enables the tracer to measure the I–V curve for a wider range of current and voltage with higher measurement points. This is important to provide rapid comparison and identification of faults that may have occurred in one or more PV modules. A low‐cost prototype was built using an Arduino‐based microcontroller, and the experimental tests were performed with 30 PV modules. The simulation and experimental results verified the performance and functionality of the proposed I–V curve tracer.

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“…The parameters of the PV module under test (installed in 2010) are displayed in Table 1. Many research works have proposed different I-V tracers for PV cell/module/string and array with a high resolution and fast computation [18][19][20]. The number of points is a…”

mentioning

confidence: 99%

“…Many research works have proposed different I-V tracers for PV cell/module/string and array with a high resolution and fast computation [18][19][20]. The number of points is a compromise between the duration of the measurement, which should be as short as possible to minimize the loss of power due to the interruption, and the required accuracy for post-processing.…”

mentioning

confidence: 99%

Low-Cost I–V Tracer for PV Fault Diagnosis Using Single-Diode Model Parameters and I–V Curve Characteristics

et al. 2022

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The continuous health monitoring of PV modules is mandatory to maintain their high efficiency and minimize power losses due to faults or failures. In this work, a low-cost embedded tracer is developed to measure the I–V curve of a PV module in less than 0.2 s. The data are used to extract the five parameters of the single-diode model and its main characteristics (open-circuit voltage, short-circuit current, and maximum power). Experimental data are used to validate the analytical model and evaluate the two fault diagnosis methods, using as fault features the parameters of the single-diode model or the main characteristics of the I–V curve. The results, based on field data under different temperatures and irradiances, show that the degradation of series and shunt resistances could be detected more accurately with the main characteristics rather than with the parameters. However, the estimated parameters could still be used to monitor the long-term degradation effects.

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A Review of the Main Methods to trace the I-V Characteristic Curve of PV Sources

Cited by 10 publications

References 36 publications

I-V Characteristics Measuring System for PV Generator based on PDM Inverter

I-V Characteristics Measuring System for PV Generator based on PDM Inverter

Multi‐channel photovoltaic current–voltage ( I – V ) curve tracer employing adaptive‐sampling‐rate method

Low-Cost I–V Tracer for PV Fault Diagnosis Using Single-Diode Model Parameters and I–V Curve Characteristics

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