Observatorio de I+D+i UPM

Memorias de investigación
Conferences:
Analytic free-form lens design for tracking integration in concentrating photovoltaics
Year:2012
Research Areas
  • Engineering
Information
Abstract
In this work the concept of tracking integration in concentrating photovoltaics (CPV) is revisited and developed further. With respect to conventional CPV, tracking integration eliminates the clear separation between stationary units of optics and solar cells, and external solar trackers. This approach is capable of further increasing the concentration ratio and makes high concentrating photovoltaics (> 500?) available for single-axis tracker installations. The reduced external solar tracking e ort enables possibly cheaper and more compact installations. Our proposed optical system uses two laterally moving plano-convex lenses to achieve high concentration over a wide angular range of ?24?. The lateral movement allows to combine both steering and concentration of the incident direct sun light. Given the speci?c symmetry conditions of the underlying optical design problem, rotational symmetric lenses are not ideal for this application. For this type of design problems, a new free-form optics design method presented in previous papers perfectly matches the symmetry. It is derived directly from Fermat's principle, leading to sets of functional di erential equations allowing the successive calculation of the Taylor series coe?cients of each implicit surface function up to very high orders. For optical systems designed for wide ?eld of view and with clearly separated optical surfaces, this new analytic design method has potential application in both ?elds of nonimaging and imaging optics.
International
Si
978-0-8194-9302-6
Entity
Illumination Optics III. (Conference OSD03) Procc of SPIE Vol 8550
Entity Nationality
Sin nacionalidad
Place
Barcelona, España
Participants
  • Autor: Fabian Duerr (Vrije Universiteit Brussel)
  • Autor: Pablo Benitez Gimenez (UPM)
  • Autor: Juan Carlos Miñano Dominguez (UPM)
  • Autor: Youri Meuret (Vrije Universiteit Brussel)
  • Autor: Hugo Thienpont (Vrije Universiteit Brussel)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería Óptica
  • Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
  • Departamento: Electrónica Física
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