Title :
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
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;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2004.835425
