Future HVDC-grids employing modular multilevel converters and hybrid DC-breakers

Author

Yeqi Wang ; Marquardt, Rainer

Author_Institution

Univ. der Bundeswehr Munchen, Neubiberg, Germany

fYear

2013

fDate

2-6 Sept. 2013

Firstpage

1

Lastpage

8

Abstract

The necessary shift from fossil fuels to regenerative sources imposes a great challenge for future power transmission. A large, meshed HVDC-Grid is proposed by several experts as the best and most efficient solution. For meshed DC-Grids, however, new and essential requirements - especially regarding availability and reliability - have to be researched very thoroughly. Fast and reliable handling of DC-faults must be ensured without disturbing the energy flow in the whole grid. The following paper deals with the key components (Modular Multilevel Converters and DC-Breakers) in large meshed HVDC-Grids. A comparison between suitable submodule topologies with DC-fault handling abilities is presented alongside with a new topology for a hybrid DC-Breaker.

Keywords

HVDC power transmission; circuit breakers; power transmission faults; power transmission reliability; DC-fault handling reliability; energy flow; fossil fuels; hybrid DC-breaker topology; meshed HVDC grid; modular multilevel converters; power transmission; regenerative sources; Clamps; Insulated gate bipolar transistors; Reliability; Silicon; Surge protection; Surges; Topology; DC grid; HVDC; Multilevel converters; Multiterminal HVDC;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE), 2013 15th European Conference on

Conference_Location

Lille

Type

conf

DOI

10.1109/EPE.2013.6631861

Filename

6631861