Two New Pairs of Local Solar Angles and Their Corresponding Tracking Systems

Abstract

In order to maintain the solar incidence angle orthogonal to the PV surface as much as possible, this paper analyzes the azimuthal tracking system; three angular pairs for the sun-ray orientation are identified in this reference system. For these angular pairs, three orientation mechanisms are derived; in the paper, these angular pairs and their corresponding mechanisms are modelled and analysed comparatively by numerical simulations in four particular cases.