Photovoltaic Power Forecasting Using Sky Images and Sun Motion
Solar energy adoption is moving at a rapid pace. The variability in solar energy production causes grid stability issues and hinders mass adoption. To solve these issues, more accurate photovoltaic power forecasting systems are needed. In intra-hour forecasting, the most challenging issue is high ou...
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/388085 |
| Acceso en línea: | http://hdl.handle.net/10261/388085 https://api.elsevier.com/content/abstract/scopus_id/105001505997 |
| Access Level: | acceso abierto |
| Palabra clave: | Deep Learning Photovoltaic Power Estimation Sky Images Sun Tracking |
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Photovoltaic Power Forecasting Using Sky Images and Sun MotionBerresheim, ArneAgudo Martínez, AntonioDeep LearningPhotovoltaic Power EstimationSky ImagesSun TrackingSolar energy adoption is moving at a rapid pace. The variability in solar energy production causes grid stability issues and hinders mass adoption. To solve these issues, more accurate photovoltaic power forecasting systems are needed. In intra-hour forecasting, the most challenging issue is high output fluctuations due to cloud motion, which can occlude the sun. Using ground-based sky images, this paper proposes two convolutional neural network models for intra-hour nowcasting and forecasting that incorporate physical information on sun motion and cloud coverage by means of the sun area mean pixel intensity. Particularly, our models exploit that information instead of relying exclusively on photovoltaic output history data as it is standard in state of the art. Taking advantage of sun position and cloud coverage information, we were able to reduce the overall root mean squared error for the nowcasting task, making the model more accurate especially during cloudy days, and obtaining competitive results on forecasting. Moreover, our models are more robust against artifacts such as occlusion and noisy observations.This work has been supported by the project MoHuCo PID2020- 120049RB-I00 funded by MCIN/ AEI /10.13039/501100011033.Peer reviewedInstitute of Electrical and Electronics EngineersAgencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)Agudo Martínez, Antonio [0000-0001-6845-4998]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/388085https://api.elsevier.com/content/abstract/scopus_id/105001505997reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-120049RB-I00https://doi.org/10.1109/ICASSP48485.2024.10448183Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3880852026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion |
| title |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion |
| spellingShingle |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion Berresheim, Arne Deep Learning Photovoltaic Power Estimation Sky Images Sun Tracking |
| title_short |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion |
| title_full |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion |
| title_fullStr |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion |
| title_full_unstemmed |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion |
| title_sort |
Photovoltaic Power Forecasting Using Sky Images and Sun Motion |
| dc.creator.none.fl_str_mv |
Berresheim, Arne Agudo Martínez, Antonio |
| author |
Berresheim, Arne |
| author_facet |
Berresheim, Arne Agudo Martínez, Antonio |
| author_role |
author |
| author2 |
Agudo Martínez, Antonio |
| author2_role |
author |
| dc.contributor.none.fl_str_mv |
Agencia Estatal de Investigación (España) Ministerio de Ciencia, Innovación y Universidades (España) Agudo Martínez, Antonio [0000-0001-6845-4998] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Deep Learning Photovoltaic Power Estimation Sky Images Sun Tracking |
| topic |
Deep Learning Photovoltaic Power Estimation Sky Images Sun Tracking |
| description |
Solar energy adoption is moving at a rapid pace. The variability in solar energy production causes grid stability issues and hinders mass adoption. To solve these issues, more accurate photovoltaic power forecasting systems are needed. In intra-hour forecasting, the most challenging issue is high output fluctuations due to cloud motion, which can occlude the sun. Using ground-based sky images, this paper proposes two convolutional neural network models for intra-hour nowcasting and forecasting that incorporate physical information on sun motion and cloud coverage by means of the sun area mean pixel intensity. Particularly, our models exploit that information instead of relying exclusively on photovoltaic output history data as it is standard in state of the art. Taking advantage of sun position and cloud coverage information, we were able to reduce the overall root mean squared error for the nowcasting task, making the model more accurate especially during cloudy days, and obtaining competitive results on forecasting. Moreover, our models are more robust against artifacts such as occlusion and noisy observations. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2025 2025 |
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info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Postprint info:eu-repo/semantics/acceptedVersion |
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article |
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acceptedVersion |
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http://hdl.handle.net/10261/388085 https://api.elsevier.com/content/abstract/scopus_id/105001505997 |
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http://hdl.handle.net/10261/388085 https://api.elsevier.com/content/abstract/scopus_id/105001505997 |
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Inglés |
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Inglés |
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info:eu-repo/semantics/openAccess |
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Institute of Electrical and Electronics Engineers |
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Institute of Electrical and Electronics Engineers |
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