Study on solar tracking trajectory calculation method with Lagrange interpolation

Abstract

This paper presents a novel solar tracking trajectory calculation method, and addresses the problems of low efficiency, computing complex issues of solar tracking control system. Based on the Lagrange interpolation method, the solar trajectory is calculated by using the location information in certain times (day, month and year), and then the sun can be accurately tracked with the method of photoelectric tracking. Finally, simulations are preformed with MATLAB to verify the validity of the proposed method.