The paper presents a novel densely packed assembly for high concentrating photovoltaic applications, designed to fit 125x primary and 4x secondary reflective optics. This assembly can accommodate 144 multijunction cells and is one of the most populated modules presented so far. Based on the thermal simulation results, an aluminum-based insulated metal substrate has been used as baseplate; this technology is commonly exploited for Light Emitting Diode applications, due to its optimal thermal management. The original outline of the conductive copper layer has been developed to minimize Joule losses by reducing the number of interconnections among the cells in series. Oversized Schottky diodes have been employed for bypassing purposes. The whole design fits the IPC-2221 requirements. The plate has been manufactured using standard electronic processes and then characterized through an indoor test and the results are here presented and commented on. The assembly achieves a fill factor above 80% and an efficiency of 29.4% at 500x, less than 2% lower than that of a single cell commercial receiver. The novel design of the conductive pattern is conceived to decrease the power losses and the deployment of an insulated metal substrate represents an improvement towards the awaited cost-cutting for high concentrating photovoltaic technologies.

Design, development, and analysis of a densely packed 500x concentrating photovoltaic cell assembly on insulated metal substrate / Micheli, L.; Sarmah, N.; Reddy, K. S.; Luo, X.; Mallick, T. K.. - In: INTERNATIONAL JOURNAL OF PHOTOENERGY. - ISSN 1110-662X. - (2015), pp. 1-19. [10.1155/2015/341032]

Design, development, and analysis of a densely packed 500x concentrating photovoltaic cell assembly on insulated metal substrate

Micheli L.;
2015

Abstract

The paper presents a novel densely packed assembly for high concentrating photovoltaic applications, designed to fit 125x primary and 4x secondary reflective optics. This assembly can accommodate 144 multijunction cells and is one of the most populated modules presented so far. Based on the thermal simulation results, an aluminum-based insulated metal substrate has been used as baseplate; this technology is commonly exploited for Light Emitting Diode applications, due to its optimal thermal management. The original outline of the conductive copper layer has been developed to minimize Joule losses by reducing the number of interconnections among the cells in series. Oversized Schottky diodes have been employed for bypassing purposes. The whole design fits the IPC-2221 requirements. The plate has been manufactured using standard electronic processes and then characterized through an indoor test and the results are here presented and commented on. The assembly achieves a fill factor above 80% and an efficiency of 29.4% at 500x, less than 2% lower than that of a single cell commercial receiver. The novel design of the conductive pattern is conceived to decrease the power losses and the deployment of an insulated metal substrate represents an improvement towards the awaited cost-cutting for high concentrating photovoltaic technologies.
2015
concentrating photovoltaics; solar; illumination; temperature; receiver; module
01 Pubblicazione su rivista::01a Articolo in rivista
Design, development, and analysis of a densely packed 500x concentrating photovoltaic cell assembly on insulated metal substrate / Micheli, L.; Sarmah, N.; Reddy, K. S.; Luo, X.; Mallick, T. K.. - In: INTERNATIONAL JOURNAL OF PHOTOENERGY. - ISSN 1110-662X. - (2015), pp. 1-19. [10.1155/2015/341032]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1625155
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