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

被引：128

作者：

Hu, Yihua ^{[1
]}

Xiao, Weidong ^{[2
]}

Cao, Wenping ^{[3
]}

Ji, Bing ^{[4
]}

Morrow, D. John ^{[3
]}

机构：

[1] Univ Strathclyde, Dept Elect & Elect Engn, Glasgow G1 1XQ, Lanark, Scotland

[2] Masdar Inst Sci & Technol, Fac Sci & Technol, Abu Dhabi 45005, U Arab Emirates

[3] Queens Univ Belfast, Sch Elect Elect Engn & Comp Sci, Belfast BT9 5AH, Antrim, North Ireland

[4] Newcastle Univ, Sch Elect & Elect Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2015年 / 30卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

DC-DC power conversion; maximum power point tracking; phase shift; photovoltaic power system; voltage control; POWER-SYSTEMS; BIDIRECTIONAL CONVERTER; DC/DC CONVERTER; VOLTAGE; DESIGN; MANAGEMENT; INTERFACE; INVERTERS; RANGE;

D O I：

10.1109/TPEL.2014.2331343

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：3068 / 3076

页数：9

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