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Ultralight Energy Converter Tile for the Space Solar Power Initiative

Kelzenberg, Michael D. and Espinet-González, Pilar and Vaidya, Nina and Warmann, Emily C. and Naqavi, Ali and Loke, Samuel P. and Saive, Philipp and Roy, Tatiana A. and Vinogradova, Tatiana G. and Leclerc, Christophe and Gdoutos, Eleftherios E. and Royer, Fabien and Fikes, Austin and Bohn, Florian and Abiri, Behrooz and Hashemi, Mohammed R. and Gal-Katziri, Matan and Hajimiri, Ali and Pellegrino, Sergio and Atwater, Harry A. (2018) Ultralight Energy Converter Tile for the Space Solar Power Initiative. In: 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC). IEEE , Piscataway, NJ, pp. 3357-3359. ISBN 9781538685297. https://resolver.caltech.edu/CaltechAUTHORS:20181210-140402265

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Abstract

We have fabricated a functional prototype of an ultralight power converter tile; a modular building block for a space-based solar power system. The tile is ∼10×15 cm in area, and weighs ∼1.5 kg/m^2. It comprises a photovoltaic (PV) solar energy collector, a radio-frequency (RF) power converter, and an array of transmission antennas. The PV collector subassembly utilizes ∼15x, 1D parabolic trough reflective concentrators with triple-junction (3J) solar cells. It has areal mass of ∼0.8 kg/m^2, 74% optical efficiency, and a peak specific power of ∼230W/kg. We demonstrated wireless power transmission over a distance of ∼50 cm in our lab. Analysis of the sources of mass and inefficiency suggest a path towards achieving dramatically higher performance with future designs.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/pvsc.2018.8547403DOIArticle
ORCID:
AuthorORCID
Espinet-González, Pilar0000-0002-7656-0077
Pellegrino, Sergio0000-0001-9373-3278
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2018 IEEE.
Group:GALCIT
Record Number:CaltechAUTHORS:20181210-140402265
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20181210-140402265
Official Citation:M. D. Kelzenberg et al., "Ultralight Energy Converter Tile for the Space Solar Power Initiative," 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), Waikoloa Village, HI, USA, 2018, pp. 3357-3359. doi: 10.1109/PVSC.2018.8547403
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91659
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:10 Dec 2018 22:15
Last Modified:03 Oct 2019 20:37

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