Comparision of Perturb and Observer and Incremental Conductance MPPT Based Solar Tracking System.

Abstract

This paper presents a detailed analysis of the two most well-known hill-climbing maximum power point tracking (MPPT) algorithms: the perturb-and-observe (P&O) and incremental conductance (INC). The purpose of the analysis is to clarify some common misconceptions in the literature regarding these two trackers, therefore helping the selection process of MPPT Keywords—Perturb and Observer, Incremental Conductance, Microcontroller, DC Servo motor. Maximum Power Point Tracking (MPPT) I. In tro d uct io n A photovoltaic system is a system which uses one or more solar panels to convert solar energy into electricity. The solar cell is the basic unit of a PV system. An individual solar cell produces direct current and power typically between 1 and 2 W, hardly enough to power most applications. It consists of multiple components, including the photovoltaic modules, mechanical and electrical connections and mountings and means of regulating and or modifying the electrical output. PV cells are made of semiconductor materials, such as silicon (2). For solar cells, a thin semiconductor wafer is specially treated to form an electric field, positive on one side and negative on the other.