Earticle

초록

영어

The role of current lead in high-temperature superconducting synchronous machine (HTSSM) is to function as a power supply by connecting the power supply unit at room temperature with the HTS field coils at cryogenic temperature. Such physical and electrical connection causes conduction and Joule-heating losses, which are major thermal losses of HTSSM rotors. To ensure definite stability and economic feasibility of HTS field coils, quickly and smoothly cooling down the current lead is a key design technology. Therefore, in this paper, we introduce a novel concept of a cooling anchor to enhance the cooling performance of a metal current lead. The technical concept of this technology is the simultaneously chilling and supporting the current lead. First, the structure of the current lead and cooling anchor were conceptually designed for field coils for a 1.5 MW-class HTSSM. Then, the effect of this installation on the thermal characteristics of HTS coils was investigated by 3D finite element analysis.

목차

Abstract
 1. INTRODUCTION
 2. CONCEPTUAL THERMAL DESIGN OF A ROTOR
  2.1. Design of conventional Cu current lead
  2.2. Design of rotor cooling system with cooling anchor
  2.3. The 3D Thermal FEM analysis without cooling anchor
 3. CONCEPTUAL DESIGN OF COOLING ANCHOR FOR CURRENT LEAD
  3.1. Conceptual structure design of cooling anchor
  3.2. The 3D thermal FEM analysis with cooling anchors
  3.3. Optimization design of the Cu current lead
 4. CONCLUSIONS
 ACKNOWLEDGMENT
 REFERENCES

키워드

저자

• C. J. Hyeon [ Department of Electrical Engineering, Jeju National University, Jeju, S. Korea ]
• J. H. Kim [ Department of Electrical Engineering, Jeju National University, Jeju, S. Korea ]
• H. L. Quach [ Department of Electrical Engineering, Jeju National University, Jeju, S. Korea ]
• S. H. Chae [ Department of Electrical Engineering, Jeju National University, Jeju, S. Korea ]
• Y. S. Yoon [ Department of Electrical Engineering, Shin Ansan University, Ansan, S. Korea ]
• J. Lee [ Department of Electrical and Electronic Engineering, Yonsei University, Seoul, S. Korea ]
• S. H. Han [ Department of Electrical and Electronic Engineering, Yonsei University, Seoul, S. Korea ]
• H. Jeon [ Department of Electrical and Electronic Engineering, Yonsei University, Seoul, S. Korea ]
• Y. H. Choi [ Department of Materials Science and Engineering, Korea University, Seoul, S. Korea ]
• H. G. Lee [ Department of Materials Science and Engineering, Korea University, Seoul, S. Korea ]
• H. M. Kim [ Department of Electrical Engineering, Jeju National University, Jeju, S. 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