CPV generator with dish reflector and fly's eye receiver

Justin Hyatt, Christian Davila, Nicholas Didato, Rodolfo Peon, Matt Rademacher, Dima Reshidko, Frank Sodari, Peter A Strittmatter, Galen Vincent, Brian Wheelwright, Corey Zammit, J Roger P Angel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We describe a CPV generator in which an off-axis paraboloidal dish reflector powers a small receiver near the focus, housing many individually illuminated multijunction cells. The receiver entrance window doubles as a field lens that forms a reduced scale image of the reflector, at concentration of ∼30×. The image has a sharp boundary, and its position is stable against tracking errors. A fly's eye lens array divides the image into equal portions, and further concentrates it to ∼500× onto the cells. This approach is in contrast to nearly all previous PV and CPV, where sunlight is equal apportioned (for simple series electrical connection) directly on entering the system. In our approach, small multijunction cells are packaged into a small receiver module that will be less expensive (per watt) to manufacture than large conventional PV or CPV modules, and can be economically upgraded for 40 year lifetime. Our concept differs from REhnu's dish/receiver design [1] in its lack of obscuration and simpler cooling, using forced air convection rather than pumped liquid coolant, this made possible by the lower heat density at the cell array. In preliminary on-sun system data with a 2.4 m2 prototype powering 5.2 mm cells at 500× concentration, we demonstrate good tolerance to mispointing (90% at 0.5°off-axis), good air cooling (cell mounting plate at 19°C above ambient) and uniform division of light between the cells (scatter of 3.3% rms).

Original languageEnglish (US)
Title of host publication14th International Conference on Concentrator Photovoltaic Systems, CPV 2018
EditorsIgnacio Anton, Marc Steiner, Myles Steiner
PublisherAmerican Institute of Physics Inc.
Volume2012
ISBN (Print)9780735417281
DOIs
StatePublished - Sep 13 2018
Event14th International Conference on Concentrator Photovoltaic Systems, CPV 2018 - Puertollano, Spain
Duration: Apr 16 2018Apr 18 2018

Other

Other14th International Conference on Concentrator Photovoltaic Systems, CPV 2018
CountrySpain
CityPuertollano
Period4/16/184/18/18

Fingerprint

parabolic reflectors
reflectors
generators
receivers
cells
modules
lenses
air cooling
data systems
occultation
coolants
sunlight
mounting
entrances
division
sun
convection
prototypes
cooling
heat

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Hyatt, J., Davila, C., Didato, N., Peon, R., Rademacher, M., Reshidko, D., ... Angel, J. R. P. (2018). CPV generator with dish reflector and fly's eye receiver. In I. Anton, M. Steiner, & M. Steiner (Eds.), 14th International Conference on Concentrator Photovoltaic Systems, CPV 2018 (Vol. 2012). [030008] American Institute of Physics Inc.. https://doi.org/10.1063/1.5053507

CPV generator with dish reflector and fly's eye receiver. / Hyatt, Justin; Davila, Christian; Didato, Nicholas; Peon, Rodolfo; Rademacher, Matt; Reshidko, Dima; Sodari, Frank; Strittmatter, Peter A; Vincent, Galen; Wheelwright, Brian; Zammit, Corey; Angel, J Roger P.

14th International Conference on Concentrator Photovoltaic Systems, CPV 2018. ed. / Ignacio Anton; Marc Steiner; Myles Steiner. Vol. 2012 American Institute of Physics Inc., 2018. 030008.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hyatt, J, Davila, C, Didato, N, Peon, R, Rademacher, M, Reshidko, D, Sodari, F, Strittmatter, PA, Vincent, G, Wheelwright, B, Zammit, C & Angel, JRP 2018, CPV generator with dish reflector and fly's eye receiver. in I Anton, M Steiner & M Steiner (eds), 14th International Conference on Concentrator Photovoltaic Systems, CPV 2018. vol. 2012, 030008, American Institute of Physics Inc., 14th International Conference on Concentrator Photovoltaic Systems, CPV 2018, Puertollano, Spain, 4/16/18. https://doi.org/10.1063/1.5053507
Hyatt J, Davila C, Didato N, Peon R, Rademacher M, Reshidko D et al. CPV generator with dish reflector and fly's eye receiver. In Anton I, Steiner M, Steiner M, editors, 14th International Conference on Concentrator Photovoltaic Systems, CPV 2018. Vol. 2012. American Institute of Physics Inc. 2018. 030008 https://doi.org/10.1063/1.5053507
Hyatt, Justin ; Davila, Christian ; Didato, Nicholas ; Peon, Rodolfo ; Rademacher, Matt ; Reshidko, Dima ; Sodari, Frank ; Strittmatter, Peter A ; Vincent, Galen ; Wheelwright, Brian ; Zammit, Corey ; Angel, J Roger P. / CPV generator with dish reflector and fly's eye receiver. 14th International Conference on Concentrator Photovoltaic Systems, CPV 2018. editor / Ignacio Anton ; Marc Steiner ; Myles Steiner. Vol. 2012 American Institute of Physics Inc., 2018.
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