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

Research output: Contribution to journal › Article › peer-review

154 Citations (Scopus)

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. The 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

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10.1109/TPEL.2014.2331343

D John Morrow
- Dj.Morrowqub.acuk
- School of Electronics, Electrical Engineering and Computer Science - Visiting Scholar
- Energy Power and Intelligent Control
Person: Academic

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. The 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.",

author = "Yihua Hu and Weidong Xiao and Wenping Cao and Bing Ji and Morrow, {D. John}",

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AU - Xiao, Weidong

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AU - Ji, Bing

AU - Morrow, D. John

PY - 2015/6

Y1 - 2015/6

N2 - 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. The 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.

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. The 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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Three-port DC-DC Converter for Stand-Alone Photovoltaic Systems

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