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논문 기본 정보

자료유형
학술저널
저자정보
최창현 (한국철도공사) 노영환 (우송대학교)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제64권 제10호
발행연도
2015.10
수록면
1,523 - 1,527 (5page)

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초록· 키워드

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Traction power is supplied by three-phase alternating current of 154 kV power grid and electric trains are operated on single phase feeding system. It becomes important to use all the three phases equally and convert them into two-phase electric power (90 degree phase rotation) for traction supply. This is achieved by special transformer from the adjacent traction substation which is separated by a neutral section. Neutral section locations are in front of the substation and between the two substations. The first stage of the Seoul-Busan high-speed railway, design curve radius is larger than 7,000 m and the greatest slope is 25‰. The railway track conditions are evaluated as good enough to install a neutral section at the first stage, but a few factors of coasting operation of the train should be considered at the second stage of Seoul-Busan high-speed railway. The neutral section was located at Kim-cheon substation, which made some neutral section problems produced by the operating train, and the neutral section was moved about 1.5 km to the south toward Dong Dae-gu station due to the track operation condition. Some of the trains which stopped at the existing Kim-cheon Gu-mi station produced another motor block failure after moving the neutral section. In this paper, power quality, system performance and track condition, etc. are suggested to solve the problems.

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Abstract
1. 서론
2. KTX 모터블럭 동작특성
3. 결론
Reference

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UCI(KEPA) : I410-ECN-0101-2016-560-001948343