Experimental Verification of a Module-Integrated Isolated Coupled-Inductor-Based dc-dc Boost-Converter-Fed Micro-Inverter
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Publication Details
Author list: Geetha P, Ravi S
Publisher: ASTM International
Place: W CONSHOHOCKEN
Publication year: 2017
Journal: Journal of Testing and Evaluation (0090-3973)
Journal acronym: J TEST EVAL
Volume number: 45
Issue number: 3
Start page: 967
End page: 979
Number of pages: 13
ISSN: 0090-3973
Languages: English-Great Britain (EN-GB)
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Abstract
In this paper, a photovoltaic module-integrated coupled inductor-based high-step-up dc-dc converter-fed isolated dc/ac converter is presented. The coupled-inductor-based dc-dc converters offer more advantages over the buck, boost, and cuk converters used in the photovoltaic (PV)-integrated applications. The proposed grid-integrated solar micro-inverter based on the isolated high-step-up dc-dc converter extracts the maximum power generated on the solar panel and it transfers the extracted power to the ac utility system through a voltage source inverter. High-step-up voltage gain, high maximum power point tracking accuracy, and high-energy-conversion efficiency can be obtained with the proposed topology. The design considerations and principle of operation of the proposed isolated high-step-up dc-dc boost-converter-fed micro-inverter are analyzed and discussed. The MATLAB/Simulink simulation and experimental results of the proposed micro-inverter have been presented to validate the performance of the isolated micro-inverter.
Keywords
dual-boost micro-inverter, maximum power point tracking (MPPT), perturb and observe (P&O), pseudo-dc link, PV module-integrated micro-inverter, single-phase voltage-source inverter (VSI)
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