Three-phase unidirectional modular multilevel converter

Author

de Sousa, Gean J. M. ; Heldwein, Marcelo L.

Author_Institution

Electr. Eng. Dept., Fed. Univ. of SANTA CATARINA (UFSC), Florianopolis, Brazil

fYear

2013

Firstpage

1

Lastpage

10

Abstract

Unidirectional power flow voltage source converter high voltage direct current (VSC-HVDC) systems can be advantageously used in future dc subsea electric transmission and distribution systems (DC-SETDS) in order to reduce cost, increase efficiency and reliability. This work proposes a unidirectional modular multilevel converter (uMMC) suitable for VSC-HVDC systems used in DC-SETDS. The main advantage of the proposal is the reduced number of active switches, lowering costs and increasing reliability. Suitable currents and voltages control strategies are presented, as well as simulation results.

Keywords

HVDC power transmission; cost reduction; electric current control; power convertors; power distribution control; power distribution economics; power distribution reliability; power transmission control; power transmission economics; power transmission reliability; voltage control; DC subsea electric transmission systems; DC subsea electric transmission-and-distribution systems; DC-SETDS; VSC-HVDC systems; active switches; cost reduction; current control strategy; high voltage direct current systems; three-phase unidirectional modular multilevel converter; uMMC; unidirectional power flow voltage source converter; voltage control strategy; Capacitors; HVDC transmission; Power conversion; Production; Topology; Voltage control; Converter control; Emerging topology; HVDC; Multilevel converters; Voltage Source Converter (VSC);

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.2013.6634676

Filename

6634676