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

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Hu, Yihua and Xiao, Weidong and Cao, Wenping and Ji, Bing and Morrow, D. John (2014) Three-port DC-DC converter for stand-alone photovoltaic systems. IEEE Transactions on Power Electronics. ISSN 0885-8993 (https://doi.org/10.1109/TPEL.2014.2331343)

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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.

  • Item type:Article
    ID code:50361
    Dates:
    Date
    Event
    2014
    Published
    30 May 2014
    Accepted
    Notes:(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:14 Nov 2014 15:56
    Last modified:24 Nov 2024 23:13
    URI:https://strathprints.strath.ac.uk/id/eprint/50361
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