An Integrated Design of the Z-Source Circuit Breaker and the Cuk Converter

Fan Pu, Yuqing Fei, Hongyu Li, Ruoxi Liang, Weilin Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

DC-DC converters and DC solid-state circuit breakers are critical to the stable operation of DC microgrids. However, they can interact with each other when cascaded, causing problems such as the inability of circuit breakers to isolate short-circuit faults or the amplification of converter output ripple. In order to solve the above problems, an integrated design scheme based on Z-source DC solid-state circuit breakers and DC-DC converters is proposed and applied to the Cuk converter in this paper. The proposed topology achieves functional integration by multiplexing the coupled inductors in Z-source circuit breaker with the inductor in Cuk converter. This scheme guarantees two performance targets, reducing the size footprint and achieving low-pass filtering characteristics. By comparing and analyzing the operation condition in steady state of the proposed topology with the Cuk circuit, the mathematical model is established, and its feasibility is verified by theoretical derivation. Finally, the simulation model is built on MatLab/Simulink, and the simulation results prove the correctness of the theoretical derivation.

Original languageEnglish
Title of host publicationIECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
ISBN (Electronic)9798350331820
DOIs
StatePublished - 2023
Event49th Annual Conference of the IEEE Industrial Electronics Society, IECON 2023 - Singapore, Singapore
Duration: 16 Oct 202319 Oct 2023

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
ISSN (Print)2162-4704
ISSN (Electronic)2577-1647

Conference

Conference49th Annual Conference of the IEEE Industrial Electronics Society, IECON 2023
Country/TerritorySingapore
CitySingapore
Period16/10/2319/10/23

Keywords

  • circuit breaker
  • coupled inductors
  • Cuk converter
  • fault isolate
  • thyristor

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