The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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A Novel DC Solid-State Circuit Breaker for DC Grid

DC Grid를 위한 새로운 구조의 DC Solid-State Circuit Breaker

  • Kim, Jin-Young (Dept. of Electrical Eng., Pukyong National University) ;
  • Kim, In-Dong (Dept. of Electrical Eng., Pukyong National University) ;
  • Nho, Eui-Cheol (Dept. of Electrical Eng., Pukyong National University)
  • Received : 2012.05.21
  • Accepted : 2012.06.18
  • Published : 2012.08.20
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Abstract

According to developed distributed generators, Solid State Circuit Breaker(SSCB) is essential for high power quality of DC Grid. In this paper, a simple and new structure of DC SSCB with a fast circuit breaker and fault current limiter is proposed. It can help to choice low specification of elements because of the limiting of fault current and achieve economic efficiency for minimizing auxiliary SCRs. Also all of SCRs have little switching loss because they operate under ZVS and ZCS. Through simulations and experiments of short-circuit fault, the performance characteristic of proposed circuit is verified and a guideline is so suggested that the DC SSCB is applied for a different DC grid using formulas.

Keywords

References

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Cited by

  1. A Novel AC Solid-State Circuit Breaker with Reclosing and Rebreaking Capability vol.15, pp.4, 2015, https://doi.org/10.6113/JPE.2015.15.4.1074
  2. New Simple-Structured AC Solid-State Circuit Breaker vol.65, pp.11, 2018, https://doi.org/10.1109/TIE.2018.2809674