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Metrology and Measurement Systems

The Journal of Committee on Metrology and Scientific Instrumentation of Polish Academy of Sciences

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Volume 21, Issue 4 (Dec 2014)

A Hybrid Maximum Power Point Search Method Using Temperature Measurements in Partial Shading Conditions

Janusz Mroczka
  • Wroclaw University of Technology, Chair of Electronic and Photonic Metrology Boleslawa Prusa 53/55, 50-317 Wroclaw, Poland
/ Mariusz Ostrowski
  • Corresponding author
  • Wroclaw University of Technology, Chair of Electronic and Photonic Metrology Boleslawa Prusa 53/55, 50-317 Wroclaw, Poland
  • Email:
Published Online: 2014-12-04 | DOI: https://doi.org/10.2478/mms-2014-0056


Photovoltaic panels have a non-linear current-voltage characteristics to produce the maximum power at only one point called the maximum power point. In the case of the uniform illumination a single solar panel shows only one maximum power, which is also the global maximum power point. In the case an irregularly illuminated photovoltaic panel many local maxima on the power-voltage curve can be observed and only one of them is the global maximum. The proposed algorithm detects whether a solar panel is in the uniform insolation conditions. Then an appropriate strategy of tracking the maximum power point is taken using a decision algorithm. The proposed method is simulated in the environment created by the authors, which allows to stimulate photovoltaic panels in real conditions of lighting, temperature and shading.

Keywords: maximum power point; partial shading; perturb and observe; temperature measurement


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About the article

Received: 2014-09-09

Revised: 2014-12-15

Accepted: 2014-10-16

Published Online: 2014-12-04

Published in Print: 2014-12-01

Citation Information: Metrology and Measurement Systems, ISSN (Online) 2300-1941, DOI: https://doi.org/10.2478/mms-2014-0056. Export Citation

© Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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