Partial Shading Detection in Solar System Using Single Short Pulse of Load

Partial Shading Detection in Solar System Using Single Short Pulse of Load

A single photovoltaic panel under uniform illumination has only one global maximum power point, but the same panel in irregularly illuminated conditions can have more maxima on its power-voltage curve. The irregularly illuminated conditions in most cases are results of partial shading. In the work a...

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Bibliographic Details
Main Author: Bartczak Mateusz
Format: Article
Language:English
Published: Polish Academy of Sciences 2017-03-01
Series:Metrology and Measurement Systems
Subjects:
maximum power point
partial shading
load pulse
test station
I−V curve
Online Access:http://www.degruyter.com/view/j/mms.2017.24.issue-1/mms-2017-0016/mms-2017-0016.xml?format=INT
Description
Summary:A single photovoltaic panel under uniform illumination has only one global maximum power point, but the same panel in irregularly illuminated conditions can have more maxima on its power-voltage curve. The irregularly illuminated conditions in most cases are results of partial shading. In the work a single short pulse of load is used to extract information about partial shading. This information can be useful and can help to make some improvements in existing MPPT algorithms. In the paper the intrinsic capacitance of a photovoltaic system is used to retrieve occurrence of partial shading.
ISSN:2300-1941

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