Title :
Balancing theory of series-stacked power quality conditioners
Author :
du T Mouton, H. ; Enslin, J.H.R. ; Akagi, H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper develops a systematic and mathematically formal study of the balancing theory of series-stacked multilevel converters. It is shown that the DC bus voltages of these converters balance naturally, provided that the switching frequency is chosen high enough. Two balancing mechanisms, one associated with losses and the other with the load impedance, are identified. A 2 MVA series-sacked power quality device was constructed and the theoretical results were verified experimentally
Keywords :
electric impedance; power convertors; power supply quality; switching circuits; 2 MVA; DC bus voltages; balancing mechanisms; balancing theory; load impedance; losses; series-stacked multilevel converters; series-stacked power quality conditioners; switching frequency; Africa; Capacitors; Clamps; Diodes; Equivalent circuits; Inductance; Power engineering and energy; Power quality; Switches; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954344
