Effect of the diffuse solar radiation on photovoltaic inverter output

Balafas, C.A.; Athanassopoulou, M.D.; Argyropoulos, Th.; Skafidas, P.D.; Dervos, C.T.

doi:10.1109/melcon.2010.5476340

Cited by 10 publications

(7 citation statements)

References 1 publication

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“…Technology-agnostic nowcasting usually aims to estimate GHI [5], which can subsequently be converted into PV power using parametric or nonparametric models [29]. In addition to GHI, DHI is also significantly affected by cloud dispersion and has a substantial impact on irradiance and, consequently, PV output [12]. It is recommended to analyze DHI separately from global radiation in photovoltaic production estimation applications.…”

Section: The Impact Of Clouds On Irradiancementioning

confidence: 99%

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Estimation of Solar Irradiance Using a Neural Network Based on the Combination of Sky Camera Images and Meteorological Data

Barancsuk,

Groma,

Günter

et al. 2024

Energies

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In recent years, with the growing proliferation of photovoltaics (PV), accurate nowcasting of PV power has emerged as a challenge. Global horizontal irradiance (GHI), which is a key factor influencing PV power, is known to be highly variable as it is determined by short-term meteorological phenomena, particularly cloud movement. Deep learning and computer vision techniques applied to all-sky imagery are demonstrated to be highly accurate nowcasting methods, as they encode crucial information about the sky’s state. While these methods utilize deep neural network models, such as Convolutional Neural Networks (CNN), and attain high levels of accuracy, the training of image-based deep learning models demands significant computational resources. In this work, we present a computationally economical estimation technique, based on a deep learning model. We utilize both all-sky imagery and meteorological data, however, information on the sky’s state is encoded as a feature vector extracted using traditional image processing methods. We introduce six all-sky image features utilizing detailed knowledge of meteorological and physical phenomena, significantly decreasing the amount of input data and model complexity. We investigate the accuracy of the determined global and diffuse radiation for different combinations of meteorological parameters. The model is evaluated using two years of measurements from an on-site all-sky camera and an adjacent meteorological station. Our findings demonstrate that the model provides comparable accuracy to CNN-based methods, yet at a significantly lower computational cost.

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Section: The Impact Of Clouds On Irradiancementioning

confidence: 99%

“…This is essential for solar power plant operators to make real-time adjustments. Inference was performed for both GHI and DHI components, as these components influence PV power in different ways [12].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Solar Irradiance Using a Neural Network Based on the Combination of Sky Camera Images and Meteorological Data

Barancsuk,

Groma,

Günter

et al. 2024

Energies

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“…Yogyakarta has an average solar radiation of 4.5 kWh/m 2 /day [18]. The average solar radiation at the earth's surface is 1000 W/m 2 [19]. The PSH value is the solar insolation divided by the irradiation on the earth's surface or 4.5 hours.…”

Section: Solar Module Designmentioning

confidence: 99%

The Design and Installation of Solar Pumping System for Pond Aeration in the Mina Makmur Fish Cultivator Group at Desa Ringinharjo, Bantul

Nadjib,

Anugrah Kusuma Yudha,

Kurniawan

et al. 2023

E3S Web Conf.

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The fish cultivator group “Mina Makmur” manages tilapia nursery ponds. The group faced a problem, namely: the growth of fish fingerlings was not assuring, and their bodies looked weak. This phenomenon is assumed to be due to poor pool water quality, which affects the lack of oxygen. The solution given is that the fishponds require an aerator. The solar-powered aerator was a choice to minimize operational costs. This paper aimed to design and install a solar pumping system as an aerator in a fishpond. The design begins with a site survey. A water pump was selected based on survey results. The solar module was designed using the current concept. The result of the design of the solar pumping system was that it requires a DC water pump with a power of 26.4 W and a solar module with a capacity of 60 Wp. The solar module was installed in a location free of shade and as close to the pump as possible, and the pump was placed outside the pond. These designed and installed solar pumping systems were functioning correctly. The resulting water discharge was 3.03 liters/minute at an average solar irradiance of 795.46 W/m2.

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“…Figura 1 -Gráfico de radiação solar em função do comprimento de onda para radiação direta e global Fonte: [11] Assim, com a entrada dos raios solares na atmosfera, os mesmos são atenuados pela dispersão e absorção, principalmente ao ozônio, vapor de água, ar seco e poeira. Quanto maior for a distância percorrida pelos raios solares na atmosfera, maior será esse efeito de atenuação.…”

Section: Agradecimentosunclassified

“…Além disso, deve-se considerar a latitude do local no qual está instalado o painel solar, inclinando ele de forma otimizada durante as estações. Uma situação ideal de céu limpo e ensolarado durante o ano todo faria com que esse ângulo de inclinação ótimo fosse igual à latitude do local; porém, em locais com radiação difusa pronunciada se beneficiam de um ângulo menor de inclinação, bem como um maior ângulo melhora a recepção de energia solar durante dias de inverno ensolarados [11].…”

Section: Agradecimentosunclassified

Estudo do ganho de energia elétrica em painéis fotovoltaicos usando rastreamento solar baseado em sistemas embarcados.

Paula¹

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Effect of the diffuse solar radiation on photovoltaic inverter output

Cited by 10 publications

References 1 publication

Estimation of Solar Irradiance Using a Neural Network Based on the Combination of Sky Camera Images and Meteorological Data

Estimation of Solar Irradiance Using a Neural Network Based on the Combination of Sky Camera Images and Meteorological Data

The Design and Installation of Solar Pumping System for Pond Aeration in the Mina Makmur Fish Cultivator Group at Desa Ringinharjo, Bantul

Estudo do ganho de energia elétrica em painéis fotovoltaicos usando rastreamento solar baseado em sistemas embarcados.

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