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http://centrogeo.repositorioinstitucional.mx/jspui/handle/1012/304| Towards the Development of a Low-Cost Irradiance Nowcasting Sky Imager. | |
| Luis Valentín Manuel I. Peña Cruz Daniela Moctezuma César M. Peña Martínez Carlos A. Pineda Arellano ARTURO DIAZ PONCE | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Solar resource assessment is fundamental to reduce the risk in selecting the solar power-plants’ location; also for designing the appropriate solar-energy conversion technology and operating new sources of solar-power generation. Having a reliable methodology for solar irradiance forecasting allows accurately identifying variations in the plant energy production and, as a consequence, determining improvements in energy supply strategies. A new trend for solar resource assessment is based on the analysis of the sky dynamics by processing a set of images of the sky dome. In this paper, a methodology for processing the sky dome images to obtain the position of the Sun is presented; this parameter is relevant to compute the solar irradiance implemented in solar resource assessment. This methodology is based on the implementation of several techniques in order to achieve a combined, fast, and robust detection system for the Sun position regardless of the conditions of the sky, which is a complex task due to the variability of the sky dynamics. Identifying the correct position of the Sun is a critical parameter to project whether, in the presence of clouds, the occlusion of the Sun is occurring, which is essential in short-term solar resource assessment, the so-called irradiance nowcasting. The experimental results confirm that the proposed methodology performs well in the detection of the position of the Sun not only in a clear-sky day, but also in a cloudy one. The proposed methodology is also a reliable tool to cover the dynamics of the sky. | |
| Applied Sciences | |
| 2019 | |
| Artículo | |
| Inglés | |
| Público en general | |
| GENERACIÓN DE ENERGÍA | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | CentroGeo |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| 2. Towards the Development of a Low-Cost Irradiance Nowcasting Sky Image.pdf | 2.84 MB | Adobe PDF | Visualizar/Abrir |