Design of a Low-Cost Multiplexer for the Study of the Impact of Soiling on PV Panel Performance

Autor: Juan David Almeyda Sarmiento, Pablo Ferrada, Jesús Polo, Diego Armando Jaimes Ramírez, Gabriel López, Aitor Marzo, Francisco Javier Batlles, Nuria Martín-Chivelet, Joaquín Alonso-Montesinos
Rok vydání: 2021
Předmět:
Zdroj: riUAL. Repositorio Institucional de la Universidad de Almería
Universidad de Almería
Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname
Energies
Volume 14
Issue 14
Energies, Vol 14, Iss 4186, p 4186 (2021)
Arias Montano: Repositorio Institucional de la Universidad de Huelva
Universidad de Huelva (UHU)
ISSN: 2017-8379
Popis: Atmospheric factors, such as clouds, wind, dust, or aerosols, play an important role in the power generation of photovoltaic (PV) plants. Among these factors, soiling has been revealed as one of the most relevant causes diminishing the PV yield, mainly in arid zones or deserts. The effect of soiling on the PV performance can be analyzed by means of I–V curves measured simultaneously on two PV panels: one soiled and the other clean. To this end, two I–V tracers, or one I–V tracer along with a multiplexer, are needed. Unfortunately, these options are usually expensive, and only one I–V tracer is typically available at the site of interest. In this work, the design of a low-cost multiplexer is described. The multiplexer is controlled by a low-cost single-board microcontroller manufactured by ArduinoTM, and is capable of managing several pairs of PV panels almost simultaneously. The multiplexer can be installed outdoors, in contrast to many commercial I–V tracers or multiplexers. This advantage allows the soiling effect to be monitored on two PV panels, by means of I–V indoor tracers. I–V curves measured by the low-cost multiplexer are also presented, and preliminary results are analyzed
This research was funded by the Spanish Ministry of Economy, Industry, and Competitiveness “PVCastSOIL” project No ENE2017-83790-C3-1-2-3-R, in collaboration with the European Regional Development Fund
Databáze: OpenAIRE