Abstract
Asymmetrical cascade multilevel inverters offer a high number of voltage levels with a given switch count. for a given topology, the number of levels depends on the configuration of the dc voltage (ratios). This paper deals with the design and control of such converters with Non integer dc voltage ratio, which leads to unevenly distributed space vectors. It describes how to select the dc voltage ratio configurations that yield space vectors as evenly distributed as possible. It describes how to produce an effective PWM modulation that allows generating undistorted current even in the presence of (some) unevenly distributed space vectors. © 2010 IEEE.
Recommended Citation
S. Lu et al., "Asymmetrical Cascade Multilevel Converters with Noninteger or Dynamically Changing DC Voltage Ratios: Concepts and Modulation Techniques," IEEE Transactions on Industrial Electronics, vol. 57, no. 7, pp. 2411 - 2418, article no. 5409616, Institute of Electrical and Electronics Engineers, Jul 2010.
The definitive version is available at https://doi.org/10.1109/TIE.2010.2041734
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Asymmetrical multilevel converters; Multilevel modulation
International Standard Serial Number (ISSN)
0278-0046
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jul 2010
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