Characterization method and analysis of misalignments in micro-concentrator photovoltaic modules

San José Gallego, Luis Javier and Vallerotto, Guido and Herrero Martín, Rebeca and Antón Hernández, Ignacio (2022). Characterization method and analysis of misalignments in micro-concentrator photovoltaic modules. "Optics Express", v. 30 (n. 11); pp. 17886-17896. ISSN 1094-4087. https://doi.org/10.1364/OE.458337.

Description

Title: Characterization method and analysis of misalignments in micro-concentrator photovoltaic modules
Author/s:
  • San José Gallego, Luis Javier
  • Vallerotto, Guido
  • Herrero Martín, Rebeca
  • Antón Hernández, Ignacio
Item Type: Article
Título de Revista/Publicación: Optics Express
Date: 2022
ISSN: 1094-4087
Volume: 30
Subjects:
Faculty: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Department: Ingeniería Telemática y Electrónica
UPM's Research Group: Integración de Sistemas e Instrumentos ISI
Creative Commons Licenses: None

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Abstract

Micro-scale concentrator photovoltaics (micro-CPV) is an emerging trend for the development of high-efficiency, low-cost photovoltaic systems. The miniaturization of optics and cells offers advantages in terms of performance and enables differentiation in the PV market. However, the sub-millimeter size of the solar cells used, the intrinsic narrow angular tolerance of CPV optical systems (typically around 0.5° and 2°), and the massive number of cells per module lead to very tight mechanical tolerances. Therefore, determining the misalignments between cells and optics is important for quality control inspection of modules. In this paper, we describe a method for characterizing these misalignments based on image acquisition and its subsequent processing and apply it to a micro-CPV module composed of 572 lens-cell units. This method is validated, using a unique experimental technique that takes advantage of the tracking system embedded in the module. The statistical distributions of misalignments are compared for two tracking positions, residuals are determined and shows the consistency of the method. Finally, the impact of misalignment distributions on the IV curve of the module is discussed.

Funding Projects

TypeCodeAcronymLeaderTitle
Horizon 2020857775HIPERIONUnspecifiedHYBRID PHOTOVOLTAICS FOR EFFICIENCY RECORD USING INTEGRATED OPTICAL TECHNOLOGY
Madrid Regional GovernmentP2018/EMT-4308MADRID-PV2UnspecifiedUnspecified

More information

Item ID: 71938
DC Identifier: https://oa.upm.es/71938/
OAI Identifier: oai:oa.upm.es:71938
DOI: 10.1364/OE.458337
Official URL: https://doi.org/10.1364/OE.458337
Deposited by: Prof. Ignacio Antón
Deposited on: 11 Oct 2022 12:19
Last Modified: 30 Nov 2022 09:00
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