Ultralight Energy Converter Tile for the Space Solar Power Initiative

Michael D. Kelzenberg, Pilar Espinet-Gonzalez, Nina Vaidya, Emily C. Warmann, Ali Naqavi, Samuel P. Loke, Philipp Saive, Tatiana A. Roy, Tatiana G. Vinogradova, Christophe Leclerc, Eleftherios E. Gdoutos, Fabien Royer, Austin Fikes, Florian Bohn, Behrooz Abiri, Mohammed R. Hashemi, Matan Gal-Katziri, Ali Hajimiri, Sergio Pellegrino, Harry A. Atwater

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

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/m2. 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/m2, 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.

Original languageEnglish
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3357-3359
Number of pages3
ISBN (Electronic)9781538685297
DOIs
StatePublished - 26 Nov 2018
Externally publishedYes
Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
Duration: 10 Jun 201815 Jun 2018

Publication series

Name2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC

Conference

Conference7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/TerritoryUnited States
CityWaikoloa Village
Period10/06/1815/06/18

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