Conventional maximum power point tracking techniques for solar photo voltaic systems: A concise review

Abstract

Renewable energy systems in general, and particularly the Solar Photo Voltaic Energy Conversion Systems (SPVECS) have received worldwide attention in the recent decades. Among the various investigative thrusts carried out in respect of SPVECS the most recognized area of research is the 'extraction of maximum power from the Solar Photo Voltaic (SPV) system. Research in the direction of Maximum Power Point Tracking (MPPT) for extracting maximum power, for the given environmental conditions is very much appreciated and is a key phenomenon in developing efficient SPV systems. In this paper a review on the various MPPT techniques for SPV systems which have been adopted since the inception of the SPV systems up to the latest soft computing algorithms is presented. To date, there has been no critical analysis carried out on the various techniques of MPPT in terms of (1) Tracking speed, (2) Algorithm complexity, (3) Dynamic tracking under partial shading and (4) Challenges in Hardware implementation. In this work the authors have attempted to compile a categorical and comprehensive review of the various conventional and non intelligent MPPT techniques available, based on the above criteria. Further, it is envisaged that the information presented in this review will be a valuable gathering of information for practicing engineers as well as for new researchers.