Earticle

초록

영어

Smart fault current controller (SFCC) proposed in our previous work consists of a power converter, a high temperature superconducting (HTS) DC reactor, thyristors, and a control unit [1]. SFCC can limit and control the current by adjusting firing angles of thyristors when a fault occurs. SFCC has complex structure because the HTS DC reactor generates the loss under AC. To use the DC reactor under AC, rectifier that consists of four thyristors is needed and it increases internal resistance of SFCC. For this reason, authors propose a hybrid type superconducting fault current limiter (SFCL). The hybrid type SFCL proposed in this paper consists of a non-inductive superconducting coil and two thyristors. To verify the feasibility of the proposed hybrid type SFCL, simulations about the interaction of the superconducting coil and thyristors are conducted when fault current flows in the superconducting coil. Authors expect that the hybrid type SFCL can control the magnitude of the fault current by adjusting the firing angles of thyristors after the superconducting coil limits the fault current at first peak.

목차

Abstract
 1. INTRODUCTION
 2. OPERATING PRINCIPLE
 3. SFCL DESIGN AND SIMULATION SETUP
  3.1. Resistive Type Superconducting Coil
  3.2. Thyristor Control Circuit
  3.3. Simulation Setup
 4. SIMULATIONS AND ANALYSIS
 5. CONCLUSION
 ACKNOWLEDGMENT
 EXAMPLE REFERENCES

키워드

저자

• Seokho Nam [ Yonsei University, Seoul, Korea ]
• Woo Seung Lee [ Yonsei University, Seoul, Korea ]
• Jiho Lee [ Yonsei University, Seoul, Korea ]
• Young Jin Hwang [ Yonsei University, Seoul, Korea ]
• Tae Kuk Ko [ Yonsei University, Seoul, Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537