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

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 a...

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Bibliographic Details
Main Authors: Mroczka Janusz, Ostrowski Mariusz
Format: Article
Language:English
Published: Polish Academy of Sciences 2014-12-01
Series:Metrology and Measurement Systems
Subjects:
Online Access:http://www.degruyter.com/view/j/mms.2014.21.issue-4/mms-2014-0056/mms-2014-0056.xml?format=INT
Description
Summary: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.
ISSN:2300-1941