Balancing theory of series-stacked power quality conditioners
Date
2001
Authors
Mouton H.D.T.
Enslin J.H.R.
Akagi H.
Journal Title
Journal ISSN
Volume Title
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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.
Description
Keywords
Electric impedance, Electric loads, Electric losses, Natural frequencies, Switching theory, Waveform analysis, Series-stacked multilevel converters, Power converters
Citation
PESC Record - IEEE Annual Power Electronics Specialists Conference
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