A new STATCOM configuration using multi-level DC Voltage reinjection for high power application

Author

Liu, Y.H. ; Arrillaga, J. ; Watson, N.R.

Author_Institution

Univ. of Canterbury, Christchurch, New Zealand

Volume

19

Issue

4

fYear

2004

Firstpage

1828

Lastpage

1834

Abstract

A new STATCOM configuration is described in this paper that combines the advantages of the diode clamped, d.c. voltage reinjection VSC and soft switching concepts. The new scheme uses asymmetrical switches instead of diodes in a common clamping switching circuit for the three-phases of the converter bridges. Detailed analysis is provided of the steady state output voltage and current waveforms. It is shown that this configuration provides very low distortion levels with greatly simplified auxiliary switching arrangements and reduced switching losses.

Keywords

bridge circuits; power convertors; reactive power; static VAr compensators; switching circuits; STATCOM configuration; clamping switching circuit; current waveforms; multilevel DC voltage reinjection; reactive power; soft switching components; steady-state output voltage; three-phase converter bridges; voltage control; Automatic voltage control; Bridge circuits; Clamps; Diodes; Power conversion; Steady-state; Switches; Switching circuits; Switching converters; Switching loss; Harmonics; reactive power; voltage control;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2004.835425

Filename

1339352