Comparison of L-VSC and LCL-VSC converter for HVDC transmission

Author

Lu Zhang ; Jovcic, Dragan

Author_Institution

Sch. of Eng., Univ. of Aberdeen, Aberdeen, UK

fYear

2012

fDate

4-6 Sept. 2012

Abstract

This paper gives a comparison of L-VSC and LCL VSC AC/DC converter considering a typical HVDC transmission application. The LCL-VSC converter is designed to have low losses and good DC fault protection. The Matlab and PSCAD detailed modeling is used for system design and testing. The models confirm that the LCL-VSC converter has better power control capability when AC voltage stepping ratio is required. The LCL-VSC also does not suffer from high currents under DC faults which is a significant advantage for high power applications. The L-VSC converter has advantages in slightly lower losses and lower converter rating.

Keywords

CAD; HVDC power convertors; HVDC power transmission; fault diagnosis; mathematics computing; power engineering computing; power transmission protection; AC voltage stepping ratio; AC-DC converter; DC fault protection; HVDC transmission application; L-VSC converter; LCL-VSC converter; Matlab; PSCAD; high power applications; power control capability; system design; system testing; Circuit faults; Fault currents; Inductors; Power conversion; Reactive power; Topology; High Voltage DC transmission; Voltage source converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2012 15th International

Conference_Location

Novi Sad

Print_ISBN

978-1-4673-1970-6

Electronic_ISBN

978-1-4673-1971-3

Type

conf

DOI

10.1109/EPEPEMC.2012.6397323

Filename

6397323