Topologies for VSC transmission

Author

Andersen, B.R. ; Xu, L. ; Horton, P.J. ; Cartwright, P

Author_Institution

Alstom T&D Ltd. Power Electron. Syst., Stafford, UK

Volume

16

Issue

3

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

142

Lastpage

150

Abstract

The increasing rating and improved performance of self-commutated semiconductor devices have made DC power transmission based on voltage-sourced converters possible. This technology is called VSC transmission. The main components in a DC scheme are depicted and their functions explained. The features of three main categories of converter topology suitable for DC transmission are described. Three specific converters, namely two-level, three-level diode-clamped and four-level floating-capacitor converters for a 300 MW scheme, are compared in terms Of costs, DC capacitor volume, commutation inductance and footprint. The floating capacitor converter is shown to yield the lowest system cost.

Keywords

HVDC power convertors; HVDC power transmission; capacitors; commutation; power semiconductor diodes; 300 MW; DC capacitor volume; DC power transmission; HVDC; VSC transmission; commutation inductance; footprint; four-level floating-capacitor converters; self-commutated semiconductor devices; three-level diode-clamped converters; two-level converters; voltage-sourced converters;

fLanguage

English

Journal_Title

Power Engineering Journal

Publisher

iet

ISSN

0950-3366

Type

jour

DOI

10.1049/pe:20020307

Filename

1015762