A novel bidirectional solid-state circuit breaker for DC microgrid

Yufeng Wang, Weilin Li, Xuanlyu Wu, Xiaohua Wu

Research output: Contribution to journalArticlepeer-review

119 Scopus citations

Abstract

DC microgrid has attracted more and more attention due to its unique characteristics, but the development of a dc microgrid is also facing some challenges, such as interruption and isolation of short-circuit fault currents. Therefore, the dc circuit breaker plays an important role in ensuring the normal work of a dc microgrid. In this paper, a novel bidirectional dc solid-state circuit breaker is proposed to realize the bidirectional flow of energy, which ensures the higher operating efficiency of the dc microgrid. Compared with other solid-state circuit breakers, the proposed novel topology has simpler structure, common ground, and fewer components. First, this paper makes a detailed analysis of the different working stages of the circuit when the fault occurs in combination with simulation results of the circuit topology. Then, the standard of selecting the components through the calculation and analysis of the circuit is given in this paper. Finally, the performance of the novel bidirectional solid-state circuit breaker is verified by experiments.

Original languageEnglish
Article number8526533
Pages (from-to)5707-5714
Number of pages8
JournalIEEE Transactions on Industrial Electronics
Volume66
Issue number7
DOIs
StatePublished - Jul 2019

Keywords

  • Bidirectional
  • dc microgrid
  • fault isolation
  • short-circuit protection
  • solid-state circuit breaker

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