자기회로의 위상학적 상사성을 이용한 전류제한기 구조에 관한 연구

다국어 초록 (Multilingual Abstract)

In this paper, current limiter using a magnetic switching which is based on magnetic flux change in the case of fault is proposed. This current limiter consists of iron-core and three parts of coils. One is the primary coil connected to the power system. Another is the secondary coil wound to the opposite direction of the primary coil's winding. The other is the secondary of the secondary coil which is a movable copper plate winding and located below the secondary coil. In the normal state, the magnetic flux produced in the primary and secondary coils flows to the opposite directions each other and becomes to be canceled out. Therefore the voltages induced between the coils are zero. In the case of a fault, at the moment of a fault occurrence recognition, the switch connected to a secondary coil is opened and the secondary of the secondary coil is pulled out to the outside of the iron-core. Then, magnetic flux becomes to flow through the iron-core. Accordingly, the voltage is induced between the both ends of the primary coil and makes the current reduced. Therefore it is possible to cut off the circuit breaker easily with the proposed current limiter. This paper analyzes the current limiting effects and the detailed results are given.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 본론
• 5. 결론
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 임성훈, "코일의 직？병렬결합을 이용한 초전도 사고전류제한기의동작전류 증가" 한국조명.전기설비학회 21 (21): 46-51, 2007

2 임성훈, "차폐유도형 고온초전도 전류제한기의 설계 및특성시뮬레이션" (29) : 165-171, 1998

3 C. H. Flurscheim, "Power circuit breaker theory and design" Peter Peregrinus 189-234, 1985

4 지근양, "Magnetic Switching을 이용한 직류회로 순간 전류제한기" 28-30, 2008

5 David K. Cheng, "Fundamentals of Engineering Electromagnetics" 222-232, 1995

6 S. H. Lim, "Fault Current Characteristics of NewResistive Type Superconducting Fault Current Limiter using Flux Linkage" 2 (2): 1755-1760, 2005

7 S. H. Lim, "Fault Current Characteristics due to Winding Direction between Coil 1 and Coil 2 in a flux-lock type SFCL" 416 : 34-42, 2004