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An LLC Topology Suitable for Renewable Energy System Applications
ID：118 View Protection：ATTENDEE Updated Time：2020-10-29 02:31:59 Hits：871 Oral Presentation

Start Time：2020-11-04 10:30（Asia/Shanghai）

Duration：15min

Session：B Power Electronics Technology and Application » B3Session 23 and Session 28

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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;DC-DC power converters
Speaker
Wei Yuqi
UNIVERSITY OF ARKANSAS

Yuqi Wei was born in Henan, China, in 1995. He received his B.S. degree in Electrical Engineering from Yanshan University, Hebei, China, in 2016, and his M.S. degree in Electrical Engineering from University of Wisconsin-Milwaukee (UWM), Wisconsin, U.S.A., in 2018. He received another M.S. degree in Electrical Engineering from Chongqing University, Chongqing, China, in 2019. He is currently working toward the Ph.D. degree at the University of Arkansas, Arkansas, U.S.A.
 

Submission Author
UNIVERSITY OF ARKANSAS
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Important Date

  • Conference Date

    Nov 02

    2020

    to

    Nov 04

    2020

  • Oct 27 2020

    Draft paper submission deadline

  • Nov 03 2020

    Contribution Submission Deadline

  • Nov 04 2020

    Registration deadline

  • Nov 17 2020

    Final Paper Deadline

Sponsored By
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
Organized By
Huazhong University of Science and Technology
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