Publication: METODOLOGÍA PARA EVALUAR DEGRADACIÓN DE MÓDULOS FOTOVOLTAICOS BIFACIALES Y MONOFACIALES EN CONDICIONES EXTERIORES DE OPERACIÓN Y BAJO CONDICIONES CONTROLADAS
Date
2022-09
Authors
NAVARRO ALARCÓN, VALENTINA MACARENA
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Abstract
En este documento se define una metodología para evaluar la degradación de módulos fotovoltaicos monofaciales y bifaciales en condiciones exteriores de operación y bajo condiciones controladas en laboratorio indoor. Para ello se propone realizar monitoreo continuo de datos, medición de curvas I-V en exterior y termografía, en tanto que, en interior se propone realizar mediciones de curvas I-V en un simulador solar.
Además, se define una metodología de predicción de la tasa de degradación de módulos monofaciales y bifaciales basada en el modelo estadístico ARIMA a partir de la serie temporal de datos de tres indicadores de desempeño: potencia normalizada, performance ratio y performance ratio corregido.
Para llevar a cabo este estudio, se habilita un laboratorio de exterior en el campus San Joaquín de la Universidad Técnica Federico Santa María y se instrumentan cuatro módulos fotovoltaicos, dos de ellos monofaciales y dos bifaciales, de modo que, para cada tecnología se tiene un módulo con dos años de exposición y otro sin exposición inicial.
Por otro lado, se incluyen cuatro semanas de datos iniciales, de donde se obtienen los tres indicadores mencionados y se valida la metodología propuesta para el estudio.
This document defines a methodology to evaluate monofacial and bifacial photovoltaic modules degradation in outdoor operating conditions and under controlled conditions in an indoor laboratory. For this, it is proposed to carry out continuous data monitoring, outdoor I-V curves measurement and thermography, while, indoors, it is proposed to trace I-V curves in a solar simulator. In addition, a prediction methodology for the degradation rate of monofacial and bifacial modules based on the ARIMA statistical model is defined from the time series data of three performance indicators: normalized power, performance ratio and corrected performance ratio. To carry out this study, and outdoor laboratory is set up on the San Joaquín campus of the Universidad Técnica Federico Santa María and four photovoltaic modules are installed, two of them monofacial and two bifacial. So that, for each technology, there is a module with two years of exposure and another without initial exposure. On the other hand, four weeks of initial data are included, from which the three indicators mentioned are obtained and the proposed methodology for the study is validated
This document defines a methodology to evaluate monofacial and bifacial photovoltaic modules degradation in outdoor operating conditions and under controlled conditions in an indoor laboratory. For this, it is proposed to carry out continuous data monitoring, outdoor I-V curves measurement and thermography, while, indoors, it is proposed to trace I-V curves in a solar simulator. In addition, a prediction methodology for the degradation rate of monofacial and bifacial modules based on the ARIMA statistical model is defined from the time series data of three performance indicators: normalized power, performance ratio and corrected performance ratio. To carry out this study, and outdoor laboratory is set up on the San Joaquín campus of the Universidad Técnica Federico Santa María and four photovoltaic modules are installed, two of them monofacial and two bifacial. So that, for each technology, there is a module with two years of exposure and another without initial exposure. On the other hand, four weeks of initial data are included, from which the three indicators mentioned are obtained and the proposed methodology for the study is validated
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Keywords
ESTADISTICA MATEMATICA , ENERGIA SOLAR , TERMOGRAFIA , PANELES SOLARES FOTOVOLTAICOS