Nowcasting System Based on Sky Camera Images to Predict the Solar Flux on the Receiver of a Concentrated Solar Plant

被引：5

作者：

Alonso-Montesinos, Joaquin ^{[1
,2
]}

Monterreal, Rafael ^{[3
]}

Fernandez-Reche, Jesus ^{[3
]}

Ballestrin, Jesus ^{[3
]}

Lopez, Gabriel ^{[4
]}

Polo, Jesus ^{[5
]}

Javier Barbero, Francisco ^{[1
]}

Marzo, Aitor

Portillo, Carlos ^{[6
]}

Javier Batlles, Francisco ^{[1
]}

机构：

[1] Univ Almeria, Dept Chem & Phys, Almeria 04120, Spain

[2] Joint Ctr Univ Almeria CIEMAT, CIESOL, Almeria 04120, Spain

[3] CIEMAT Plataforma Solar Almeria, Solar Concentrating Syst Unit, Almeria 04200, Spain

[4] Univ Huelva, Dept Elect & Thermal Engn Design & Projects, Huelva 21004, Spain

[5] CIEMAT, Renewable Energy Div, Photovolta Solar Energy Unit, Madrid 28040, Spain

[6] Univ Antofagasta, Ctr Desarrollo Energet Antofagasta CDEA, Antofagasta 1270300, Chile

来源：

REMOTE SENSING | 2022年 / 14卷 / 07期

关键词：

central solar power plant; sky cam images; flux simulation; solar plant control; remote sensing; solar energy; image processing; RADIATION; ATTENUATION; EXTINCTION; MODEL;

D O I：

10.3390/rs14071602

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

As part of the research for techniques to control the final energy reaching the receivers of central solar power plants, this work combines two contrasting methods in a novel way as a first step towards integrating such systems in solar plants. To determine the effective power reaching the receiver, the direct normal irradiance was predicted at ground level using a total sky camera, TSI-880 model. Subsequently, these DNI values were used as the inputs for a heliostat model (Fiat-Lux) to trace the sunlight's path according to the mirror features. The predicted valuex of flux, obtained from these simulations, differ of less than 20% from the real values. This represents a significant advance in integrating different technologies to quantify the losses produced in the path from the heliostats to the central receiver, which are normally caused by the presence of atmospheric attenuation factors.

引用

页数：17

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