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An overview of major MPPT techniques

M. NECDET YILDIZ1,* , EŞREF DENİZ2

Affiliation

  1. Ege Higher Vocational School Aircraft Technology Program Activities, Ege University, Bornova, İzmir
  2. Solar Energy Institute/ Ege University, Bornova, İzmir

Abstract

Tracking of Maximum Power Point of a PV panel or PV panel array is of essential importance for yielding high energy outputs from solar energy power systems. MPPT (Maximum Power Point Tracking) is utilized by on grid inverters and charge regulators in order to make the system operate with maximum efficiency. The main mission of the MPPT is to adopt the operating point of a module or array usually modifying the output voltage in order to adapt the system to different irradiance conditions and also temperature variations. Within the scope of this study a wide range of MPPT techniques have been investigated. Among all methods investigated much focus has been on Hill Climbing and Perturb and Observe methods. This paper outlines different versions of both method and discusses the advantages and disadvantages of each technique. It overviews the main shortcomings of those two conventional methods..

Keywords

MPPT, Hill Climbing, Perturb and Observe.

Submitted at: Dec. 18, 2012
Accepted at: April 11, 2013

Citation

M. NECDET YILDIZ, EŞREF DENİZ, An overview of major MPPT techniques, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 3-4, pp. 342-345 (2013)