DESIGN AND MANUFACTURE OF ASPHERIC LENSES FOR NOVEL HIGH EFFICIENT PHOTOVOLTAIC CONCENTRATOR MODULES

摘要

Within this project novel high efficient photovoltaic concentrator modules composed of a TIR-R (total internal reflection - refraction) lens system and small GaAs solar cells were designed and manufactured. Main objective was the development of a photovoltaic system with an efficiency of 21% and production costs not exceeding those of conventional silicon solar cells. This paper reports on the design and simulation of the concentrator, diamond machining of the ultraprecision molds for injection molding of the PMMA lenses and first functional tests of the lens system. Finally, a prototype of a photovoltaic panel consisting of 138 individual concentrator modules is presented.