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Reduction of DC-Link Voltage Fluctuation for Hydraulic Turbine Generation Systems Using Back-to-Back Converters
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Publication Year
2019-10-01
Journal
CENCON 2019 - 2019 IEEE Conference on Energy Conversion
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
CENCON 2019 - 2019 IEEE Conference on Energy Conversion, Vol.2019-January, pp.75-78
Keyword
Back-to-Back (BTB) converterFluctuation of DC-link voltageHydrualic turbine generation (HTG) systemSwitch-open-faultZero current of range
Mesh Keyword
Back-to-back converterBTB convertersCircuit diagramsControl methodsDC-link voltagesGeneration systemsOpen faults
All Science Classification Codes (ASJC)
Electrical and Electronic EngineeringControl and OptimizationEnergy Engineering and Power TechnologyRenewable Energy, Sustainability and the Environment
Abstract
This paper proposes a reduction of DC-link voltage fluctuation for hydraulic turbine generation (HTG) systems using back-to-back (BTB) converters. In HTG systems, a BTB converters with two-level topology have been mainly used. Because of its strong points of being intuitive in circuit diagram and easy to maintain. A switch-open-fault in the grid-stage converter of the BTB converter causes the fluctuation of DC-link voltage in the BTB converters. It reduces the reliability of the HTG systems. To improve the performance of the HTG systems generally, supplementary circuits or components and tolerant control methods are required. Therefore, this paper proposed method to reduce the fluctuation of DC-link voltage when switch-open-fault is happened in the grid-stage converter. The validity of the proposed method to reduce the fluctuation of DC-link voltage is substantiated by simulation results.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36422
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084425291&origin=inward
DOI
https://doi.org/10.1109/cencon47160.2019.8974692
Journal URL
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=8966555
Type
Conference
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Lee, Kyo-Beum이교범
Department of Electrical and Computer Engineering
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