Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation

Detalhes bibliográficos
Autor(a) principal: Contes Calca, Marcus Vinicius [UNESP]
Data de Publicação: 2019
Outros Autores: Raniero, Matheus Rodrigues [UNESP], Zeca Fernando, Domingos Mario, Rodrigues, Sergio Augusto [UNESP], Dal Pai, Alexandre [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1109/TLA.2019.8986419
http://hdl.handle.net/11449/195220
Resumo: The correct design of Photovoltaic Systems and Solar Heating Systems should be based on solar irradiance measurements (global, sky-diffuse and direct-beam) acquired on land surface. This paper presents a quality control procedure for global (IG), sky-diffuse (ID) and direct-beam (IB) solar irradiance measurements on horizontal surface, considering the application of a impossible values identification method with predefined thresholds and a statistical techniques for outliers detection (identifying measures suspected to be correct). To evaluate and quantify the occurrence of physically impossible and suspected correct measures, it was also proposed to apply this procedure in six years of measurements (2005 to 2010) of the Solar Radiometry Laboratory of the School of Agricultural Sciences of the Sao Paulo State University (UNESP) of Botucatu (SP) - Brazil. The procedure was based on the International Commission on Illumination (CIE) fundamental quality control of solar measurements and statistical ranges according to the different sky cover classification (KT). The results indicated that the dataset used for the demonstration contained approximately 1.00%, 1.49% and 1.88% of global, sky-diffuse and direct-beam irradiance values on horizontal surfaces, respectively, flagged as invalid by the procedure. This amount represents measures physically impossible or suspected to be correct (outlier). The techniques for outliers detection, proposed in this paper, in combination with the CIE quality control criteria, should be applied in solar measurements to provide greater security for future investigations pointing the valid and invalid measures.
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spelling Outliers Detection in a Quality Control Procedure for Measurements of Solar RadiationEnergy MeasurementsRadiometrySolar EnergyStatistical AnalysisThe correct design of Photovoltaic Systems and Solar Heating Systems should be based on solar irradiance measurements (global, sky-diffuse and direct-beam) acquired on land surface. This paper presents a quality control procedure for global (IG), sky-diffuse (ID) and direct-beam (IB) solar irradiance measurements on horizontal surface, considering the application of a impossible values identification method with predefined thresholds and a statistical techniques for outliers detection (identifying measures suspected to be correct). To evaluate and quantify the occurrence of physically impossible and suspected correct measures, it was also proposed to apply this procedure in six years of measurements (2005 to 2010) of the Solar Radiometry Laboratory of the School of Agricultural Sciences of the Sao Paulo State University (UNESP) of Botucatu (SP) - Brazil. The procedure was based on the International Commission on Illumination (CIE) fundamental quality control of solar measurements and statistical ranges according to the different sky cover classification (KT). The results indicated that the dataset used for the demonstration contained approximately 1.00%, 1.49% and 1.88% of global, sky-diffuse and direct-beam irradiance values on horizontal surfaces, respectively, flagged as invalid by the procedure. This amount represents measures physically impossible or suspected to be correct (outlier). The techniques for outliers detection, proposed in this paper, in combination with the CIE quality control criteria, should be applied in solar measurements to provide greater security for future investigations pointing the valid and invalid measures.Univ Estadual Paulista, Fac Ciencias Agron, Botucatu, SP, BrazilUniv Pedag Mocambique, Fac Ciencias Nat & Matemat, Chimoio, Manica, MozambiqueUniv Estadual Paulista, Fac Ciencias Agron, Botucatu, SP, BrazilIeee-inst Electrical Electronics Engineers IncUniversidade Estadual Paulista (Unesp)Univ Pedag MocambiqueContes Calca, Marcus Vinicius [UNESP]Raniero, Matheus Rodrigues [UNESP]Zeca Fernando, Domingos MarioRodrigues, Sergio Augusto [UNESP]Dal Pai, Alexandre [UNESP]2020-12-10T17:27:21Z2020-12-10T17:27:21Z2019-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1815-1822http://dx.doi.org/10.1109/TLA.2019.8986419Ieee Latin America Transactions. Piscataway: Ieee-inst Electrical Electronics Engineers Inc, v. 17, n. 11, p. 1815-1822, 2019.1548-0992http://hdl.handle.net/11449/19522010.1109/TLA.2019.8986419WOS:000515679400008Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIeee Latin America Transactionsinfo:eu-repo/semantics/openAccess2021-10-23T06:52:06Zoai:repositorio.unesp.br:11449/195220Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:58:11.153803Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
title Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
spellingShingle Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
Contes Calca, Marcus Vinicius [UNESP]
Energy Measurements
Radiometry
Solar Energy
Statistical Analysis
title_short Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
title_full Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
title_fullStr Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
title_full_unstemmed Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
title_sort Outliers Detection in a Quality Control Procedure for Measurements of Solar Radiation
author Contes Calca, Marcus Vinicius [UNESP]
author_facet Contes Calca, Marcus Vinicius [UNESP]
Raniero, Matheus Rodrigues [UNESP]
Zeca Fernando, Domingos Mario
Rodrigues, Sergio Augusto [UNESP]
Dal Pai, Alexandre [UNESP]
author_role author
author2 Raniero, Matheus Rodrigues [UNESP]
Zeca Fernando, Domingos Mario
Rodrigues, Sergio Augusto [UNESP]
Dal Pai, Alexandre [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Univ Pedag Mocambique
dc.contributor.author.fl_str_mv Contes Calca, Marcus Vinicius [UNESP]
Raniero, Matheus Rodrigues [UNESP]
Zeca Fernando, Domingos Mario
Rodrigues, Sergio Augusto [UNESP]
Dal Pai, Alexandre [UNESP]
dc.subject.por.fl_str_mv Energy Measurements
Radiometry
Solar Energy
Statistical Analysis
topic Energy Measurements
Radiometry
Solar Energy
Statistical Analysis
description The correct design of Photovoltaic Systems and Solar Heating Systems should be based on solar irradiance measurements (global, sky-diffuse and direct-beam) acquired on land surface. This paper presents a quality control procedure for global (IG), sky-diffuse (ID) and direct-beam (IB) solar irradiance measurements on horizontal surface, considering the application of a impossible values identification method with predefined thresholds and a statistical techniques for outliers detection (identifying measures suspected to be correct). To evaluate and quantify the occurrence of physically impossible and suspected correct measures, it was also proposed to apply this procedure in six years of measurements (2005 to 2010) of the Solar Radiometry Laboratory of the School of Agricultural Sciences of the Sao Paulo State University (UNESP) of Botucatu (SP) - Brazil. The procedure was based on the International Commission on Illumination (CIE) fundamental quality control of solar measurements and statistical ranges according to the different sky cover classification (KT). The results indicated that the dataset used for the demonstration contained approximately 1.00%, 1.49% and 1.88% of global, sky-diffuse and direct-beam irradiance values on horizontal surfaces, respectively, flagged as invalid by the procedure. This amount represents measures physically impossible or suspected to be correct (outlier). The techniques for outliers detection, proposed in this paper, in combination with the CIE quality control criteria, should be applied in solar measurements to provide greater security for future investigations pointing the valid and invalid measures.
publishDate 2019
dc.date.none.fl_str_mv 2019-11-01
2020-12-10T17:27:21Z
2020-12-10T17:27:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1109/TLA.2019.8986419
Ieee Latin America Transactions. Piscataway: Ieee-inst Electrical Electronics Engineers Inc, v. 17, n. 11, p. 1815-1822, 2019.
1548-0992
http://hdl.handle.net/11449/195220
10.1109/TLA.2019.8986419
WOS:000515679400008
url http://dx.doi.org/10.1109/TLA.2019.8986419
http://hdl.handle.net/11449/195220
identifier_str_mv Ieee Latin America Transactions. Piscataway: Ieee-inst Electrical Electronics Engineers Inc, v. 17, n. 11, p. 1815-1822, 2019.
1548-0992
10.1109/TLA.2019.8986419
WOS:000515679400008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ieee Latin America Transactions
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1815-1822
dc.publisher.none.fl_str_mv Ieee-inst Electrical Electronics Engineers Inc
publisher.none.fl_str_mv Ieee-inst Electrical Electronics Engineers Inc
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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