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Energies 2018, 11(11), 3051; https://doi.org/10.3390/en11113051

PV Module Monitoring System Based on Low-Cost Solutions: Wireless Raspberry Application and Assessment

1
Technological Center for Energy and Environment (CETENMA), 30353 Cartagena, Spain
2
Department of Electronic Technology, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
3
Department of Electrical Engineering, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
4
Department of Applied Mathematics and Statistics, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
*
Author to whom correspondence should be addressed.
Received: 20 September 2018 / Revised: 19 October 2018 / Accepted: 28 October 2018 / Published: 6 November 2018
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Abstract

The integration of renewables into power systems has led to multiple studies and analysis in terms of grid-power quality, reliability, and/or feasibility. Among different resources to be considered as alternative energy systems, wind and solar emerge as the most mature technologies. With regard to photovoltaic (PV) installations, monitoring problems requires detailed analysis, since solar-radiation fluctuations, soiling on solar panels, or deficiency of PV-panel performance can involve unexpected power-output oscillations and, subsequently, undesirable power-generation oscillations. Under this framework, this paper describes and assesses a wireless low-cost PV-module monitoring system based on open-source solutions. Our proposal allows us to monitor installations at the PV-module level, giving detailed information regarding PV power-plant performance. The proposed monitoring system is based on the IEC-61724 standard requirements, as a flexible and ad hoc solution with relevant connectivity options. Meteorological and electrical data are collected from the developed nodes and available for subsequent analysis. Detailed information of the solution, as well as extensive results collected in Spanish PV power plants connected to the grid, are also included in the paper. View Full-Text
Keywords: PV monitoring; low-cost solutions; renewable energy source integration PV monitoring; low-cost solutions; renewable energy source integration
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Paredes-Parra, J.M.; Mateo-Aroca, A.; Silvente-Niñirola, G.; Bueso, M.C.; Molina-García, Á. PV Module Monitoring System Based on Low-Cost Solutions: Wireless Raspberry Application and Assessment. Energies 2018, 11, 3051.

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