SOLAR PHOTOVOLTAIC MODULE WITH CONCENTRATOR Russian patent published in 2012 - IPC H01L31/52 

FIELD: physics.

SUBSTANCE: solar photovoltaic module with a concentrator has a Fresnel lens with a concentric working profile and placed in the focal plane of a photoelectric detector with a cooling device; the concentrator is composed of a serial set of sectors of the source concentric Fresnel lens, with uniform distribution of concentrated radiation on an annular focal region; the source concentric Fresnel lens consists of two zones with working profiles, one with concentration of beams from the periphery to the centre, and the other from the centre to the periphery; the working profiles alternate at different inclination through an interval Δr, with formation in the focal plane of an annular focal region of width Δr with inner radius r₀ equal to: r₀=n₀*Δr or r₀=0.5(N-1)* Δr for average value of n₀=0.5(N-1), where n₀ is selected from whole numbers n=0…N, which are multiples of Δr; the radius of the source Fresnel lens is equal to a value R=N*Δr, where N is the number of intervals of value Δr; the source lens is cut on the radius into a defined number of sectors and is a flat rectangular Fresnel lens, in which neighbouring sectors are opposite each other with uniform distribution of concentrated radiation on the linear photoelectric detector in the focal plane, and the receiver is in form of a line of assembled high-voltage photoconverters of width d≥Δr, and length L=2πr₀; the receiver is symmetrically mounted on secondary omega-shaped cylindrical parabolic concentrator of width d and length L=2πr₀. Disclosed also is a method of making a solar photovoltaic module with a concentrator by making a Fresnel lens and a photodetector with a cooling system.

EFFECT: high efficiency of conversion and low cost of the generated energy.

2 cl, 8 dwg