A new high-pulse voltage-sourced converter for HVDC transmission

Author

Liu, Yonghe H. ; Arrillaga, Jos ; Watson, Neville R.

Author_Institution

Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand

Volume

18

Issue

4

fYear

2003

Firstpage

1388

Lastpage

1393

Abstract

The proposed converter is based on the reinjection of a series of DC voltage pulses, at a frequency multiple of the fundamental, that shape the output voltage waveforms into a multilevel scheme. The reinjection ratio and frequency are chosen to convert the standard 12-pulse into 36-pulse configuration without the assistance of filters or PWM. Thus, the switching losses are greatly reduced. The harmonic current injection can be kept within present standards by an appropriate choice of the interface transformer leakage reactance.

Keywords

HVDC power convertors; HVDC power transmission; electric reactance; losses; magnetic leakage; switching convertors; transformers; 12-pulse configuration; 36-pulse configuration; DC voltage pulses; HVDC transmission; harmonic current injection; high-pulse voltage-sourced converter; interface transformer leakage reactance; output voltage waveforms shaping; reinjection frequency; reinjection ratio; switching losses; Bridge circuits; Capacitors; Frequency conversion; HVDC transmission; Power conversion; Pulse shaping methods; Pulse transformers; Pulse width modulation; Pulse width modulation converters; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2003.817727

Filename

1234697