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배전급 초전도한류기 및 전력 IT 응용을 위한 실시간 모니터링 시스템 개발
Development of Distribution Superconducting Fault Current Limiter and its Monitoring System for Power IT Application

박동근   (연세대학교 전기전자공학과UU0000936  ); 석복열   (현대중공업 기계전기연구소CC0002871  ); 고태국   (연세대학교 전기전자공학과UU0000936  ); 강형구   (현대중공업 기계전기연구소CC0002871  );
  • 초록

    Recently, the development of superconducting fault current limiters (SFCLs) has been required as power demands increase in the power system. A distribution-level prototype resistive SFCL using coated conductor (CC) has been developed by Hyundai Heavy Industries Co., Ltd. and Yonsei University for the first time in the world. The ratings of the SFCL are 13.2kV/630A at normal operating condition. A novel non-inductive winding method is used in fabricating coils so there is almost zero impedance during normal operation. The distribution SFCL is cooled by sub-cooled liquid nitrogen $(LN_2)$ of 65K and 3 bar to enhance cryo-dielectric performance, critical current density, and thermal conductivity. In order to make reliable operation of an SFCL in real power systems, we monitored and controled its operation conditions by using supervisory control and data acquisition (SCADA) method. Thus, a monitoring system for the SFCL employing information technology (IT) is proposed and developed to be on the lookout for the operation conditions such as inside temperature, inside pressure, $LN_2$ level, voltage and current. Since operation temperature should be kept constant, bang-bang control for temperature feedback with a heater attached to the cold head of cryo-cooler is applied to the system. Short-circuit tests with prospective fault current of 10kA and AC dielectric withstand voltage tests up to 143kV for 1 minute were successfully performed at Korea Electrotechnology Research Institute. This paper deals with the development of a distribution level SFCL and its monitoring system for reliable operation.


  • 주제어

    Control .   Fault Current Limiter .   Monitoring System .   Real Time Monitoring .   Short Circuit Test.  

  • 참고문헌 (4)

    1. S. E. Yang, T. K. Ko, et al, "Manufacture and Test of the Bifilar Wound Coil Using Coated Conductor With Stainless Steel Stabilizer," IEEE Trans. on Applied Supercond. vol. 17, No. 2, pp.1867-1870, 2007 
    2. H. Kang, T. K. Ko, et al, "Electrical breakdown characteristics of superconducting magnet system in sub-cooled liquid nitrogen," IEEE Trans. on Applied Supercond. vol. 17, No. 2, pp.1509-1512, 2007 
    3. Y. Y. Xie, V. Selvamanickam, et al, "Second Generation High-Temperature Superconducting Wires for Fault Current Limiter Applications," IEEE Trans. on Applied Supercond. vol. 17, No. 2, pp.1981-1985, 2007 
    4. C. Lee, T. K. Ko. et al, "Design of a high temperature superconducting for a 8.3 MVA FCL," IEEE Trans. on Applied Supercond. vol. 17, No. 2, pp.1907-1910, 2007 
  • 이 논문을 인용한 문헌 (3)

    1. Bae, In-Su ; Kim, Sung-Yul ; Kim, Jin-O 2009. "A Study on the Reliability of Superconducting Fault Current Limiter and Adjacent Distribution Equipments" 전기학회논문지 = The Transactions of the Korean Institute of Electrical Engineers, 58(11): 2122~2127     
    2. Kim, Sung-Yul ; Kim, Wook-Won ; Bae, In-Su ; Kim, Jin-O 2010. "An Optimal Location of Superconducting Fault Current Limiter in Distribution Network with Distributed Generation Using an Index of Distribution Reliability Sensitivity" 照明·電氣設備學會論文誌 = Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 24(6): 52~59     
    3. Kim, Sung-Yul ; Kim, Wook-Won ; Kim, Jin-O 2011. "A Study on the Evaluation of Distribution Reliability Considering Reliability Model for a Resistive-Type of Superconducting Fault Current Limiter" 전기학회논문지 = The Transactions of the Korean Institute of Electrical Engineers, 60(3): 465~470     

 저자의 다른 논문

  • Park, Dong-Keun (7)

    1. 2005 "Current Limitation by Bi-2223 Bifilar Winding Coils" 한국초전도·저온공학회논문지 = Superconductivity and cryogenics 7 (2): 31~34    
    2. 2005 "Manufacture and Test of Small-scale Superconducting Fault Current Limiter by Using the Bifilar Winding of Coated Conductor" 한국초전도·저온공학회논문지 = Superconductivity and cryogenics 7 (4): 20~23    
    3. 2005 "Short-circuit Analysis of Solenoid and Pancake Type Bifilar Winding Magnets using BSCCO tape" 한국초전도·저온공학회논문지 = Superconductivity and cryogenics 7 (4): 28~31    
    4. 2006 "Fault Current Limiting Characteristic of Non-inductively Wound HTS Magnets in Sub-cooled $LN_2$ Cooling System" 한국초전도·저온공학회논문지 = Superconductivity and cryogenics 8 (2): 29~32    
    5. 2006 "Simultaneous Quench Characteristic of Resistive Superconducting Fault Current Limiting Modules by using BSCCO Tape" 한국초전도·저온공학회논문지 = Superconductivity and cryogenics 8 (2): 43~45    
    6. 2008 "Experimental Research on Basic design and protection of High-$T_c$ Heater Triggered Switch in Liquid Helium" 한국초전도·저온공학회논문지 = Superconductivity and cryogenics 10 (4): 13~17    
    7. 2008 "Experimental Analysis of Superconducting Fault Current Limiter Wound with Two Different HTS wires in Parallel" 한국초전도·저온공학회논문지 = Superconductivity and cryogenics 10 (2): 30~33    
  • 석복열 (9)

  • Ko, Tae-Kuk (35)

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