Power Analysis of non-tracking PV system with low power RTC based sensor independent solar tracking (SIST) PV system

Abstract

Solar energy is a renewable resource that is clean, economical, and less polluting. It is rapidly gaining importance among various renewable energy resources. This paper evaluates the performance of static and tracking-type photovoltaic systems. Comparative analysis of the existing tracking system with present proposed tracking system was done. Further, numerical assessment of energy consumed of the tracking device gives an account of percentage of energy consumed only for tracking. In the proposed system, concept of real time clock (RTC) in the design and implementation of a solar tracking system makes a replacement of algorithm-based systems pertaining to data base stored already and sensor based systems for rotating the assembly. Because of its versatility, this system can be installed any part of the world irrespective of topography and other parametric conditions. The SIST PV system is a low power consuming system and is independent of non-linearity of components of conventional systems.