Optimized Modulation for AC–DC Harmonic Immunity in VSC HVDC Transmission

Author

Flourentzou, Nikolas ; Agelidis, Vassilios G.

Author_Institution

Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia

Volume

25

Issue

3

fYear

2010

fDate

7/1/2010 12:00:00 AM

Firstpage

1713

Lastpage

1720

Abstract

Control methods based on selective harmonic elimination pulse-width modulation (SHE-PWM) techniques offer the lowest possible number of switching transitions. This feature also results in the lowest possible level of converter switching losses. For this reason, they are very attractive techniques for the voltage-source-converter-(VSC) based high-voltage dc (HVDC) power transmission systems. The paper discusses optimized modulation patterns which offer controlled harmonic immunity between the ac and dc side. The application focuses on the conventional two-level converter when its dc-link voltage contains a mix of low-frequency harmonic components. Simulation and experimental results are presented to confirm the validity of the proposed switching patterns.

Keywords

AC-DC power convertors; HVDC power transmission; PWM power convertors; optimisation; AC-DC harmonic immunity; SHE-PWM techniques; VSC HVDC transmission; control methods; converter switching losses; high-voltage dc power transmission systems; optimized modulation patterns; selective harmonic elimination pulse-width modulation; switching transitions; two-level converter; voltage source converter; Amplitude modulation (AM); HVDC; dc-ac power conversion; harmonic control; insulated-gate bipolar transistor (IGBT); power electronics; power transmission system; pulse-width modulation; voltage-source converter (VSC);

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2009.2034664

Filename

5392982