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A comprehensive review on PV configurations to maximize power under partial shading

Kho, Charles Tze Kang; Ahmed, Jubaer; Kashem, Saad; Then, Yi Lung

Authors

Charles Tze Kang Kho

Saad Kashem

Yi Lung Then



Abstract

Partial shading is the condition where PV array experiences different level of irradiances on it which results significant reduction in output power. To handle that issue, PV modules are connected in various configurations as reported in the literature. Different connection schemes of the PV modules provide alternative paths to current flow that eventually improve power attainment under partial shading. A comprehensive study of literature shows that PV modules are connected under different schemes namely simple series (SS), parallel (P), series-parallel (SP), total-cross-tied (TCT), bridge-linked (BL) and honey-comb (HC). In this paper, a comprehensive review is performed to highlight the advantages and limitations of each scheme. To validate the findings from literature review, several experiments are carried out on various configurations in MATLAB Simulink. Three different cases namely unshaded, corner shaded and centre shaded conditions are used in the experiments to analyse the output characteristics. The superiority of various configurations in distinct operating conditions is demonstrated by comparing their maximum power output, relative power loss and fill factor. Based on the results, several recommendations are made on how to handle partial shading by using different PV configurations.

Presentation Conference Type Conference Paper (Published)
Conference Name TENCON 2017 - 2017 IEEE Region 10 Conference
Start Date Nov 5, 2017
End Date Nov 8, 2017
Online Publication Date Dec 21, 2017
Publication Date 2017
Deposit Date Dec 28, 2021
Publisher Institute of Electrical and Electronics Engineers
Pages 763-768
Series ISSN 2159-3450
Book Title TENCON 2017 - 2017 IEEE Region 10 Conference
ISBN 150901134X
DOI https://doi.org/10.1109/TENCON.2017.8227962
Keywords PV Configuration, Maximum Power, Irradiance Mismatch, Partial Shading, PV, Solar
Public URL http://researchrepository.napier.ac.uk/Output/2823318