Performance Analysis of a Two Stage Micro Photovoltaic Concentrator

In this paper, we propose a comparative study of two Micro photovoltaic concentrator systems (MCPV); the first is based on a Fresnel lens associated with a dome lens as secondary optical element. The second one is composed of two lenses the first is a Plano-convex lens, while the secondary is a dome lens. We studied and analyzed several parameters including large range of wavelengths. The two systems are compared in terms of optical efficiency and acceptance angle. In addition, the distribution of irradiance on the solar cell is also studied. Results show that the system composed of Polymethyl methacrylate (PMMA) Plano convex lens associated with a dome presents the highest optical efficiency regarding the non uniformity of flux, however, the two systems allow a large acceptance angle if they are made of Polycarbonate (PC).