HVDC shunt tap based on series-input parallel-output DC-AC multi-module VSCs with DC voltages balancing

Ahmed Elserougi, Ahmed Massoud, Ayman Abdel-Khalik, S. Ahmed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Conventionally, tapping-off a small amount of power from an HVDC transmission line to a three-phase local network can be achieved using a DC-to-AC voltage source converter (VSC) followed by a step down transformer. In order to obtain the high-voltage ratings required in the HVDC systems, semiconductor devices should be connected in series. Hence, careful design to ensure dynamic voltage sharing between switches is necessary. In this paper, DC-AC multi-module VSCs (series-input parallel-output) along with an input-voltage balancing technique are employed as an alternative solution. The advantages of the proposed architecture against conventional system are also highlighted. A Simulation study is carried out to show the effectiveness of the proposed architecture and to validate the proposed voltage balancing technique.
Original languageEnglish (US)
Title of host publication7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
PublisherInstitution of Engineering and Technologyjournals@theiet.org
ISBN (Print)9781849198158
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

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