A buck converter with integrated circuit breaker

Jeffrey Yong Kwen Chong, Daniel J. Ryan, Hugh D. Torresan, Behrooz Bahrani

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

2 Citations (Scopus)


Power conversion and protection systems are often associated with two different devices; power electronic converters and circuit breakers. With power electronic converters enabling the integration of various dc sources, and circuit breakers providing system protection, both are essential in the reliability of dc networks. This paper introduces a non-isolated dc-dc power converter with integrated circuit breaker, able to simultaneously provide power conversion, and fault current limiting and interruption capabilities. The proposed system's topology, based on the series coupled inductor Z-Source Circuit Breaker (S-C-ZCB), inherits its automatic ability to limit fault currents and low-pass filter characteristic while reducing its footprint, operational and maintenance cost over traditional dc circuit breakers. Analysis of the proposed system, along with simulation results, are presented and compared during both steady-state operation and a fault on the output terminal.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE 27th International Symposium on Industrial Electronics (ISIE)
EditorsYousef Ibrahim
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781538637050, 9781538637043
ISBN (Print)9781538637067
Publication statusPublished - 2018
EventIEEE International Symposium on Industrial Electronics (ISIE) 2018 - Cairns, Australia
Duration: 13 Jun 201815 Jun 2018
Conference number: 27th
https://ieeexplore.ieee.org/xpl/conhome/8419226/proceeding (Proceedings)


ConferenceIEEE International Symposium on Industrial Electronics (ISIE) 2018
Abbreviated titleISIE 2018
Internet address


  • DC collector network
  • DC protection
  • Faults
  • PECB
  • Power Converter
  • Protection device
  • Thyristor
  • Z-Source

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