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Energies 2017, 10(7), 998; doi:10.3390/en10070998

Low-Cost Solar Irradiance Sensing for PV Systems

1
Department of Electrical Engineering, University of Colorado Denver, Denver, CO 80217, USA
2
Department of Engineering, Università degli Studi Roma Tre, 00149 Roma, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Enrico Sciubba
Received: 18 January 2017 / Revised: 3 July 2017 / Accepted: 10 July 2017 / Published: 14 July 2017
View Full-Text   |   Download PDF [4680 KB, uploaded 14 July 2017]   |  

Abstract

Determination of solar irradiance is a critical asset to ensure efficient working conditions for a photovoltaic (PV) system. This work analyze the feasibility of assessing solar irradiance on a PV device assuming the knowledge of the device temperature and the voltage/current operating point. This work proposes an approach based on a manipulation of the analytic expressions found in the reduced form of the “single diode” circuit model for a silicon PV device. The approach was validated through different practical experiments, and the results obtained are comparable to the ones of a commercial instrument for irradiance sensing. The ease of construction and the reduced costs involved make a device based on the proposed approach suitable for large-scale integration in a PV plant. View Full-Text
Keywords: parameter estimation; photovoltaic power systems; renewable energy; solar radiation parameter estimation; photovoltaic power systems; renewable energy; solar radiation
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MDPI and ACS Style

Carrasco, M.; Laudani, A.; Lozito, G.M.; Mancilla-David, F.; Riganti Fulginei, F.; Salvini, A. Low-Cost Solar Irradiance Sensing for PV Systems. Energies 2017, 10, 998.

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