Photovoltaic solar concentration system

The present invention discloses a photovoltaic solar concentration system including a Fresnel lens concentrator (1) with a constant facet thickness in a first area, particularly the central area of the lens (1), then having a constant facet height in a second area, particularly the peripheral area of the lens (1), in order to maximize the optical efficiency of the lens (1), maintaining the typical system aberrations under control. The concentrated photovoltaic solar system also comprises a secondary optical element (2) with a circular intake face (3) and convex curvature, a section to accommodate a rim (4), and a pyramidal section (6), the transverse section changing from a circle into a square in the lower end (7) where the photovoltaic receiver is housed. This system improves the optical and thermodynamic efficiency of the existing systems, facilitates the production and installation in the photovoltaic module, and reduces manufacturing-related costs.