Optics of two-stage photovoltaic concentrators with dielectric second stages
| Autor: | Roland Winston, Joseph J. O'Gallagher, Xiaohui Ning |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Geometrical optics business.industry Materials Science (miscellaneous) Photovoltaic system Fresnel lens Dielectric Concentrator Industrial and Manufacturing Engineering law.invention Optics law Acceptance angle Ray tracing (graphics) Business and International Management business Refractive index |
| Zdroj: | Applied optics. 26(7) |
| ISSN: | 1559-128X |
| Popis: | Two-stage photovoltaic concentrators with Fresnel lenses as primaries and dielectric totally internally reflecting nonimaging concentrators as secondaries are discussed. The general design principles of such two-stage systems are given. Their optical properties are studied and analyzed in detail using computer ray trace procedures. It is found that the two-stage concentrator offers not only a higher concentration or increased acceptance angle, but also a more uniform flux distribution on the photovoltaic cell than the point focusing Fresnel lens alone. Experimental measurements with a two-stage prototype module are presented and compared to the analytical predictions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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