An LLC Topology Suitable for Renewable Energy System Applications

Yuqi Wei; Alan Mantooth

doi:10.1109/CIYCEE49808.2020.9332656

An LLC Topology Suitable for Renewable Energy System Applications

Yuqi Wei
, Alan Mantooth

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Wide range operation dc/dc converters are required in renewable energy system applications. For example, for photovoltaic (PV) system, the output voltage of the PV ranges from 20 V to 60 V, which requires a dc/dc converter has a wide voltage gain range of 3. LLC resonant converters are popular due to their high efficiency characteristic. However, when traditional LLC converters are adopted in wide voltage range applications, the converter efficiency and power density performances are degraded due to the wide switching frequency operating range. In this article, a novel LLC topology, which has different operation modes, is proposed for renewable energy system applications, is proposed to satisfy the voltage gain requirement. By operating the proposed converter in three different operation modes, namely dual full-bridge, single full-bridge, and single half-bridge, the system normalized voltage gain can be varied from double to half. The operational principles, design considerations, and experimental validations are presented in this paper.

Original language	English
Title of host publication	2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728196596
DOIs	https://doi.org/10.1109/CIYCEE49808.2020.9332656
State	Published - 1 Nov 2020
Event	1st IEEE China International Youth Conference on Electrical Engineering, CIYCEE 2020 - Wuhan, China Duration: 1 Nov 2020 → 4 Nov 2020

Publication series

Name	2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020

Conference

Conference	1st IEEE China International Youth Conference on Electrical Engineering, CIYCEE 2020
Country/Territory	China
City	Wuhan
Period	1/11/20 → 4/11/20

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

LLC converter
Renewable energy systems
Wide range application

Access to Document

10.1109/CIYCEE49808.2020.9332656

Cite this

Wei, Y., & Mantooth, A. (2020). An LLC Topology Suitable for Renewable Energy System Applications. In 2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020 Article 9332656 (2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CIYCEE49808.2020.9332656

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title = "An LLC Topology Suitable for Renewable Energy System Applications",

abstract = "Wide range operation dc/dc converters are required in renewable energy system applications. For example, for photovoltaic (PV) system, the output voltage of the PV ranges from 20 V to 60 V, which requires a dc/dc converter has a wide voltage gain range of 3. LLC resonant converters are popular due to their high efficiency characteristic. However, when traditional LLC converters are adopted in wide voltage range applications, the converter efficiency and power density performances are degraded due to the wide switching frequency operating range. In this article, a novel LLC topology, which has different operation modes, is proposed for renewable energy system applications, is proposed to satisfy the voltage gain requirement. By operating the proposed converter in three different operation modes, namely dual full-bridge, single full-bridge, and single half-bridge, the system normalized voltage gain can be varied from double to half. The operational principles, design considerations, and experimental validations are presented in this paper.",

keywords = "LLC converter, Renewable energy systems, Wide range application",

author = "Yuqi Wei and Alan Mantooth",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 1st IEEE China International Youth Conference on Electrical Engineering, CIYCEE 2020 ; Conference date: 01-11-2020 Through 04-11-2020",

year = "2020",

month = nov,

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doi = "10.1109/CIYCEE49808.2020.9332656",

language = "英语",

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Wei, Y & Mantooth, A 2020, An LLC Topology Suitable for Renewable Energy System Applications. in 2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020., 9332656, 2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020, Institute of Electrical and Electronics Engineers Inc., 1st IEEE China International Youth Conference on Electrical Engineering, CIYCEE 2020, Wuhan, China, 1/11/20. https://doi.org/10.1109/CIYCEE49808.2020.9332656

An LLC Topology Suitable for Renewable Energy System Applications. / Wei, Yuqi; Mantooth, Alan.
2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020. Institute of Electrical and Electronics Engineers Inc., 2020. 9332656 (2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - An LLC Topology Suitable for Renewable Energy System Applications

AU - Wei, Yuqi

AU - Mantooth, Alan

PY - 2020/11/1

Y1 - 2020/11/1

N2 - Wide range operation dc/dc converters are required in renewable energy system applications. For example, for photovoltaic (PV) system, the output voltage of the PV ranges from 20 V to 60 V, which requires a dc/dc converter has a wide voltage gain range of 3. LLC resonant converters are popular due to their high efficiency characteristic. However, when traditional LLC converters are adopted in wide voltage range applications, the converter efficiency and power density performances are degraded due to the wide switching frequency operating range. In this article, a novel LLC topology, which has different operation modes, is proposed for renewable energy system applications, is proposed to satisfy the voltage gain requirement. By operating the proposed converter in three different operation modes, namely dual full-bridge, single full-bridge, and single half-bridge, the system normalized voltage gain can be varied from double to half. The operational principles, design considerations, and experimental validations are presented in this paper.

AB - Wide range operation dc/dc converters are required in renewable energy system applications. For example, for photovoltaic (PV) system, the output voltage of the PV ranges from 20 V to 60 V, which requires a dc/dc converter has a wide voltage gain range of 3. LLC resonant converters are popular due to their high efficiency characteristic. However, when traditional LLC converters are adopted in wide voltage range applications, the converter efficiency and power density performances are degraded due to the wide switching frequency operating range. In this article, a novel LLC topology, which has different operation modes, is proposed for renewable energy system applications, is proposed to satisfy the voltage gain requirement. By operating the proposed converter in three different operation modes, namely dual full-bridge, single full-bridge, and single half-bridge, the system normalized voltage gain can be varied from double to half. The operational principles, design considerations, and experimental validations are presented in this paper.

KW - LLC converter

KW - Renewable energy systems

KW - Wide range application

UR - https://www.scopus.com/pages/publications/85100804143

U2 - 10.1109/CIYCEE49808.2020.9332656

DO - 10.1109/CIYCEE49808.2020.9332656

M3 - 会议稿件

AN - SCOPUS:85100804143

T3 - 2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020

BT - 2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 1st IEEE China International Youth Conference on Electrical Engineering, CIYCEE 2020

Y2 - 1 November 2020 through 4 November 2020

ER -

Wei Y, Mantooth A. An LLC Topology Suitable for Renewable Energy System Applications. In 2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020. Institute of Electrical and Electronics Engineers Inc. 2020. 9332656. (2020 IEEE 1st China International Youth Conference on Electrical Engineering, CIYCEE 2020). doi: 10.1109/CIYCEE49808.2020.9332656

An LLC Topology Suitable for Renewable Energy System Applications

Abstract

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UN SDGs

Keywords

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