Determination of the tracking system's trajectory considering the electric drive losses

Abstract

This paper deals with optimal sun-tracking of a photovoltaic system considering the electric drive losses. The Sun tracking photovoltaic system assures that the highest possible share of the available solar radiation reaches the surface of the photovoltaic modules. The electric drive which enables tracking is considered as the loss of the energy produced in the photovoltaic system. The maximum of the energy produced in the photovoltaic system is achieved by the continuous tracking of the photovoltaic system. Since the electric drives are determined by constant speed and time, and angle quantization the maximum of the energy produced can only approximate. The results presented in this paper show, that the optimal trajectories can help to increase the electrical energy production within photovoltaic systems by sun tracking.