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Three-Port DC–DC Converter for Stand-Alone Photovoltaic Systems

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journal contribution
posted on 04.04.2016, 08:55 by Y. Hu, W. Xiao, W. Cao, Bing Ji, D. J. Morrow
System efficiency and cost effectiveness are of critical importance for photovoltaic (PV) systems. This paper addresses the two issues by developing a novel three-port dc-dc converter for stand-alone PV systems, based on an improved Flyback-Forward topology. It provides a compact single-unit solution with a combined feature of optimized maximum power point tracking (MPPT), high step-up ratio, galvanic isolation, and multiple operating modes for domestic and aerospace applications. A theoretical analysis is conducted to analyze the operating modes followed by simulation and experimental work. This paper is focused on a comprehensive modulation strategy utilizing both PWM and phase-shifted control that satisfies the requirement of PV power systems to achieve MPPT and output voltage regulation. A 250-W converter was designed and prototyped to provide experimental verification in term of system integration and high conversion efficiency.

History

Citation

IEEE Transactions on Power Electronics, 2015, 30(6), pp. 3068-3076

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Version

AM (Accepted Manuscript)

Published in

IEEE Transactions on Power Electronics

Publisher

Institute of Electrical and Electronics Engineers (IEEE), United States

issn

0885-8993

Acceptance date

30/05/2014

Copyright date

2014

Available date

04/04/2016

Publisher version

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6838982&filter=AND(p_IS_Number:7012134)

Language

en