Sizing and Short-Circuit Capability of a Transformerless HVDC DC-DC Converter
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comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
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Title
Sizing and Short-Circuit Capability of a Transformerless HVDC DC-DC ConverterAuthor (s)
Date
2020-01-15Publisher
Institute of Electrical and Electronics EngineersISSN
0885-8977Bibliographic citation
VIDAL-ALBALATE, Ricardo, et al. Sizing and short-circuit capability of a transformerless HVDC DC-DC converter. IEEE Transactions on Power Delivery, 2020.Type
info:eu-repo/semantics/articlePublisher version
https://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=9204772Version
info:eu-repo/semantics/acceptedVersionSubject
Abstract
This work aims at optimizing the converter design of the double-T MMC DC-DC converter in terms of transmitted power per submodule and also in terms of transmitted power per silicon area, while, at the same time, ... [+]
This work aims at optimizing the converter design of the double-T MMC DC-DC converter in terms of transmitted power per submodule and also in terms of transmitted power per silicon area, while, at the same time, providing the capability to block dc faults. Firstly, the converter operation is described and the optimal values of the inner ac and dc voltages that minimize device power rating are derived. Next, the submodule topology is analyzed and a thorough study on the converter capability for blocking fault currents is carried out, showing that the converter is able to isolate dc faults both at the input and at the output of the converter. Finally, the previous analytical study is verified by means of detailed PSCAD simulations. [-]
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IEEE Transactions on Power Delivery ( Volume: 35, Issue: 5, Oct. 2020)Rights
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