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Detection and analysis of degradation in the physical and electrical parameters in the PV cell

R. KHENFER1,2, M. MOSTEFAI1, S. BENAHDOUGA2, A. EDDIAI3,*

Affiliation

  1. LAS Laboratory, University Setif I, Sétif, Algeria
  2. Mohamed El Bachir El Ibrahimi University, BBA, Algeria
  3. Laboratory of Physics of Condensed Matter (LPMC), Faculty of Sciences Ben M'sik, University Hassan II Mohammedia-Casablanca, Morocco

Abstract

In this paper, we propose a method of analysis and detection degradation of physical and electrical parameters in photovoltaic cell. This method incorporates the stages of detection, localization and identification. For modeling PV panels, we used the two-diode model. Concerning the detection and localization, we used a limited number of voltage sensors. Also for the identification, we use the method of analysis of the I-V curve of the PV cell. By using this method, we can identify degradation due to climatic conditions as a partial shade, and the increase in the series resistance due to the corrosion or bad contact between cells, with examination of the presence of inflection points and calculate the second derivative of the error between the I-V characteristic with and without defects. The obtained simulation results showed the effectiveness of the proposed diagnosis method and the model used..

Keywords

PV cell, Location and identification, Two-diode model, I-V characteristic analysis.

Submitted at: May 14, 2014
Accepted at: July 10, 2014

Citation

R. KHENFER, M. MOSTEFAI, S. BENAHDOUGA, A. EDDIAI, Detection and analysis of degradation in the physical and electrical parameters in the PV cell, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 7-8, pp. 842-848 (2014)