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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 952 - 958 (7page)
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초록· 키워드
오류제보하기
Phase sequence commutating method among traction feeders results in a neutral section without power supply between two feeders in traction substation of electrified railway. Electric locomotives suffer from a nopower time of more than 100 millisecond when going through the neutral section, during which the power failure and restoration process causes serious over-voltage and over-current problems. A novel railway uninterruptible flexible connector based on two-phase modular multilevel converter structure(MMC-UFC) is proposed in this paper, which can completely eliminate power supply dead zone. System utilization and operational principle are analyzed. Mathematical model of MMC-UFC is built to derive the difference between MMC-UFC. Double close-loop control strategies are given and close-loop control of both upper arm current and lower arm current for MMC converter is proposed to ensure the quality of output current. PSCAD/EMTDC simulations and experiment are carried out to prove the effectiveness of proposed MMC-UFC and its control system.
목차
Abstract
I. INTRODUCTION
II. SYSTEM UTILIZATION OF TRACTION SUBSTATION AND MMC-UFC
III. MODELING AND CONTROL SYSTEM DESIGN OF PROPOSED UNINTERRUPTILBE FLEXIBLE CONNECTOR
IV. CONTROL SYSTEM DESIGN AND STABILITY ANALYSIS OF MMC-UFC
V. SIMULATION AND EXPERIMENTAL RESULT
VI. CONCLUSION
REFERENCE
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