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

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...

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Veröffentlicht in:	IEEE transactions on power delivery 2004-10, Vol.19 (4), p.1828-1834
Hauptverfasser:	Liu, Y.H., Arrillaga, J., Watson, N.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Automatic voltage control Bridge circuits Clamping Clamps Convertors Diodes Distortion Disturbances. Regulation. Protection Electric potential Electrical engineering. Electrical power engineering Electrical machines Electrical power engineering Exact sciences and technology Power conversion Power networks and lines Regulation and control Reinjection Steady state Switches Switching Switching circuits Switching converters Switching loss Voltage
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Beschreibung
Zusammenfassung:	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.
ISSN:	0885-8977 1937-4208
DOI:	10.1109/TPWRD.2004.835425