In order to reduce the mismatch effect caused by non-uniform shadows in PV arrays, reconfigurable interconnections approaches have been recently proposed in the literature. These systems usually require the knowledge of the solar radiation affecting every solar module. The aim of this work is to evaluate the effectiveness of three irradiance estimation approaches in order to define which can be well suited for reconfigurable PV arrays. It is presented a real-time solar irradiance estimation device (IrradEst), implementing the three different estimation methods. The proposed system is based on mathematical models of PV modules enabling to estimate irradiation values by sensing a combination of temperature, voltage and current of a PV module. Experimental results showed generally good agreement between the estimated irradiances and the measurements performed by a standard pyranometer taken as reference. Finally one of the three methods was selected as possible solution for a reconfigurable PV system.

Giaconia, G.C., Miceli, R., Li Vigni, V., Di Buono, P., Pinto, M., Di Dio, v., et al. (2015). Proof of Concept of an Irradiance Estimation System for Reconfigurable Photovoltaic Arrays. ENERGIES, 7(8), 6641-6657 [10.3390/en8076641].

Proof of Concept of an Irradiance Estimation System for Reconfigurable Photovoltaic Arrays

GIACONIA, Giuseppe Costantino;MICELI, Rosario;LI VIGNI, Vincenzo;DI DIO, Vincenzo;LA MANNA, Damiano;RIVA SANSEVERINO, Eleonora
;
ROMANO, Pietro
2015-01-01

Abstract

In order to reduce the mismatch effect caused by non-uniform shadows in PV arrays, reconfigurable interconnections approaches have been recently proposed in the literature. These systems usually require the knowledge of the solar radiation affecting every solar module. The aim of this work is to evaluate the effectiveness of three irradiance estimation approaches in order to define which can be well suited for reconfigurable PV arrays. It is presented a real-time solar irradiance estimation device (IrradEst), implementing the three different estimation methods. The proposed system is based on mathematical models of PV modules enabling to estimate irradiation values by sensing a combination of temperature, voltage and current of a PV module. Experimental results showed generally good agreement between the estimated irradiances and the measurements performed by a standard pyranometer taken as reference. Finally one of the three methods was selected as possible solution for a reconfigurable PV system.
2015
Settore ING-IND/33 - Sistemi Elettrici Per L'Energia
Settore ING-IND/32 - Convertitori, Macchine E Azionamenti Elettrici
Settore ING-IND/31 - Elettrotecnica
Settore ING-INF/01 - Elettronica
Giaconia, G.C., Miceli, R., Li Vigni, V., Di Buono, P., Pinto, M., Di Dio, v., et al. (2015). Proof of Concept of an Irradiance Estimation System for Reconfigurable Photovoltaic Arrays. ENERGIES, 7(8), 6641-6657 [10.3390/en8076641].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/144953
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