Detection and characterization of cloud enhancement events for solar irradiance using a model-independent, statistically-driven approach

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dc.catalogadorgjm
dc.contributor.authorCastillejo Cuberos, Armando
dc.contributor.authorEscobar Moragas, Rodrigo
dc.date.accessioned2021-07-21T23:53:37Z
dc.date.available2021-07-21T23:53:37Z
dc.date.issued2020
dc.description.abstractCloud enhancement events are instances in which the cloud pattern increases global horizontal irradiance on the ground above levels higher than would otherwise be expected during clear sky with cloudless conditions, and in general, these events are characterized by high irradiances occurring during highly changing transient conditions. Even though it is a well-known although infrequent phenomenon, currently no consensus exists as to its formal definition. However, several studies point out to a need for a better understanding of this phenomenon due to their effects on mathematical models or photovoltaic systems behavior during these instances, as results show significant deviations with respect to the expected results in normal conditions. Due to these issues, the present work intends to explore cloud enhancement definitions and detection methods, for which a novel model-independent, statistically-driven approach is proposed and compared to three other models found in the literature. Assessments are made regarding the main aspects of the phenomenon: frequency of occurrence, clearness index, diffuse fraction and its relationship with solar resource variability. Data from eight measurements sites throughout Chile, with different climatic characteristics is used. To further support the analysis made, monthly maximum expected clear sky irradiance for each site was estimated through satellite-based data as well as with estimation from ground measurements. Finally, the highest irradiances are presented for each measurement site reporting, the record irradiances for one-minute data thermopile and photodiode pyranometers.
dc.fechaingreso.objetodigital2023-04-18
dc.fuente.origenConveris
dc.identifier.doi10.1016/j.solener.2020.09.046
dc.identifier.issn0038-092X
dc.identifier.urihttps://doi.org/10.1016/j.solener.2020.09.046
dc.identifier.wosidWOS:000579876200046
dc.information.autorucEscuela de Ingeniería ; Castillejo Cuberos, Armando ; 0000-0002-0742-4661 ; 1050239
dc.information.autorucEscuela de Ingeniería ; Escobar Moragas, Rodrigo ; S/I ; 158663
dc.language.isoen
dc.pagina.final567
dc.pagina.inicio547
dc.revistaSolar Energyes_ES
dc.rightsacceso restringido
dc.rightsacceso restringido
dc.subjectCloud enhancement events
dc.subjectOverirradiance
dc.subjectSolar resource assessment
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleDetection and characterization of cloud enhancement events for solar irradiance using a model-independent, statistically-driven approaches_ES
dc.typeartículo
dc.volumen209
sipa.codpersvinculados1050239
sipa.codpersvinculados158663
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