On the issues in MPPT implentation for PV systems

Abstract

The ultimate aim of any Maximum Power Point Tracking (MPPT) algorithm for a photovoltaic (PV) system is to ensure that the maximum possible power is available to the load at all times, irrespective of the environmental conditions. To this end, several conventional and non-conventional MPPT algorithms have been proposed in literature. However, these algorithms neglect the effect of the converter design, dynamics and the value of load on the system. This paper investigates the effect of the dynamics and the non-idealities of the power electronic converter that is used for MPPT implementation on the performance of the MPPT algorithm. Based on the experimental results, design considerations for effective MPPT implementation are presented.