Three-port DC-DC converter for stand-alone photovoltaic systems

Yihua Hu; Weidong Xiao; Wenping Cao; Bing Ji; D. John Morrow

doi:10.1109/TPEL.2014.2331343

Three-port DC-DC converter for stand-alone photovoltaic systems

Yihua Hu
, Weidong Xiao
, Wenping Cao
, Bing Ji
, D. John Morrow

College of Engineering and Physical Sciences

Queens University Belfast
Newcastle University
University of Strathclyde
Masdar Institute of Science and Technology

Research output: Contribution to journal › Article

169 Citations (SciVal)

2686 Downloads (Pure)

Abstract

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.

Original language	English
Pages (from-to)	3068-3076
Number of pages	9
Journal	IEEE Transactions on Power Electronics
Volume	30
Issue number	6
Early online date	18 Jun 2014
DOIs	https://doi.org/10.1109/TPEL.2014.2331343
Publication status	Published - Jun 2015

Bibliographical note

© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

DC–DC power conversion
maximum power point tracking
phase shift
photovoltaic power system
voltage control

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10.1109/TPEL.2014.2331343

Three-port DC-DC converter for stand-alone photovoltaic systems
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Accepted author manuscript, 1 MB

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6838982

Cite this

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title = "Three-port DC-DC converter for stand-alone photovoltaic systems",

abstract = "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.",

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AU - Morrow, D. John

N1 - © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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AB - 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.

KW - DC–DC power conversion

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KW - phase shift

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KW - voltage control

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ER -

Three-port DC-DC converter for stand-alone photovoltaic systems

Abstract

Bibliographical note

UN SDGs

Keywords

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Cite this