Multi-port isolated LLC resonant converter for distributed energy generation with energy storage

Kevin Tomas Manez, Zhe Zhang, Ziwei Ouyang

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Abstract

Distributed energy generation systems with energy storage and microgrids have attracted increasing research interest in recent years. Therefore, multi-ports dc-dc converters have gained more interest. However, when integrating into multiple port converters, the power flow control and ports regulation increase in complexity. In this paper, an isolated multi-port bidirectional converter based on an LLC converter is presented. The converter operates as a dc transformer at a fixed switching frequency and duty cycle without any control loop. The resonant tanks are designed to ensure soft-switching for the whole power range and minimize the voltage variation of the unregulated ports. In order to verify the converter operation, a 1 kW prototype with a 600 V maximum voltage has been implemented.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)
PublisherIEEE
Publication date2017
Pages2219-2226
DOIs
Publication statusPublished - 2017
Event2017 IEEE Energy Conversion Congress and Exposition (ECCE) - Cincinnati, United States
Duration: 1 Oct 20175 Oct 2017
http://www.ieee-ecce.org/2017/

Conference

Conference2017 IEEE Energy Conversion Congress and Exposition (ECCE)
CountryUnited States
CityCincinnati
Period01/10/201705/10/2017
Internet address
Series2017 Ieee Energy Conversion Congress and Exposition (ecce)

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