Solar Concentrator with Asymmetric Tracking-Integrated Optics

摘要

A method is provided for using asymmetrically focused photovoltaic conversion in a hybrid parabolic trough solar power system. Light rays received in a plurality of transverse planes are concentrated towards a primary linear focus in an axial plane, orthogonal to the transverse planes. T band wavelengths of light are transmitted to the primary linear focus, while R band wavelengths of light are reflected towards a secondary linear focus in the axial plane. The light received at the primary linear focus is translated into thermal energy. The light received at the secondary linear focus is asymmetrically focused along a plurality of tertiary linear foci, orthogonal to the axial plane. The focused light in each tertiary linear focus is concentrated into a plurality of receiving areas and translated into electrical energy. Asymmetrical optical elements are used having an optical input interfaces elongated along rotatable axes, orthogonal to the axial plane.

主权项

1. A hybrid trough solar power system using asymmetrically focused photovoltaic (CPV) conversion in conjunction with a thermal collector, the system comprising:
a reflective trough having a primary axis and a parabolic curved surface for concentrating light rays received in a plurality of transverse planes into a primary linear focus in an axial plane, orthogonal to the transverse planes; a dichroic spectrum splitter having a hyperbolically curved surface, an axis aligned in parallel to the primary linear focus, and a position between the reflective trough and the primary linear focus, the dichroic spectrum splitter transmitting T band wavelengths of light, and reflecting R band wavelengths light to a secondary linear focus formed parallel to a vertex of the reflective trough in the axial plane; a thermal collection tube aligned along the primary linear focus for the light transmitted by the dichroic spectrum splitter; a plurality of concentrating optics sections formed in series along the secondary linear focus, each concentrating optics section comprising:
an asymmetrical optical element focusing the R band wavelengths of light reflected by the dichroic spectrum splitter along a tertiary linear focus, orthogonal to the axial plane; and,a plurality of PV devices, each having an optical interface to receive the focused B band wavelengths of light.