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The Korean Institute of Electrical Engineers (대한전기학회)
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New Three-Phase Static Transfer Switch using AC SSCB

AC SSCB를 이용한 새로운 3상 Static Transfer Switch

  • Song, Seung-Min (Dept. of Electrical Eng., Pukyong Nat. University) ;
  • Kim, Jin-Young (Dept. of Electrical Eng., Pukyong Nat. University) ;
  • Kim, In-Dong (Dept. of Electrical Engineering, Pukyong National University)
  • Received : 2018.01.18
  • Accepted : 2018.04.30
  • Published : 2018.05.01
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Abstract

These days, widespread use of sensitive loads and distributed generators makes static transfer switch (STS) an essential component in power circuits to achieve a good power quality for AC Grids. In case of a short-circuit fault, previous STS cannot break the fault current. However, the proposed STS has the capability of breaking it quickly as a circuit breaker. Also if there are power quality problems such as Sag/Swell, the proposed STS can quickly transfers the load to the good quality source. Furthermore it is proved that the transfer time of the proposed STS is within one half of period of 3-phase source frequency regardless of the type of load. It is anticipated that the proposed STS may be utilized to realize many stable and reliable AC grid systems.

Keywords

References

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