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International Journal of Photoenergy
Volume 2015 (2015), Article ID 242745, 9 pages
http://dx.doi.org/10.1155/2015/242745
Research Article

MPPT Technique Based on Current and Temperature Measurements

Departamento de Engenharia Elétrica, Universidade Federal de Itajubá (UNIFEI), Avenida BPS 1303, Bairro Pinheirinho, 37500-903 Itajubá, MG, Brazil

Received 28 November 2014; Accepted 11 February 2015

Academic Editor: Euzeli dos Santos Jr.

Copyright © 2015 Eduardo Moreira Vicente et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents a new maximum power point tracking (MPPT) method based on the measurement of temperature and short-circuit current, in a simple and efficient approach. These measurements, which can precisely define the maximum power point (MPP), have not been used together in other existing techniques. The temperature is measured with a low cost sensor and the solar irradiance is estimated through the relationship of the measured short-circuit current and its reference. Fast tracking speed and stable steady-state operation are advantages of this technique, which presents higher performance when compared to other well-known techniques.