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Switching frequency analysis of staircase-modulated modular multilevel converters and equivalent PWM techniques

Author
Konstantinou, G.; Pou, J.; Ceballos, S.; Darus, R.; Agelidis, V.
Type of activity
Journal article
Journal
IEEE transactions on power delivery
Date of publication
2015-03-27
Volume
31
Number
1
First page
28
Last page
36
DOI
https://doi.org/10.1109/TPWRD.2015.2416759 Open in new window
URL
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7070753 Open in new window
Abstract
The large number of voltage levels in a modular multilevel converter (MMC) make staircase modulation a feasible alternative, particularly in high-power applications. However, staircase waveforms do not necessarily mean operation of the MMC submodules (SMs) at the fundamental frequency. This paper presents an analysis of SM switching frequencies in staircase-modulated MMCs and their correlation to the modulation index and load phase angle. A carrier-based pulsewidth-modulation (CB-PWM) equivalent...
Keywords
Modular multilevel converter (MMC), multilevel converters, pulsewidth modulation (PWM)
Group of research
Electromagnetic Compatibility (EMC); Widebandgap (WBG); Internal Activity; Feature Selective Validation (FSV); Spread Spectrum modulation; Reliability; Multilevel Converters; Fault detection;

Participants

  • Konstantinou, Georgios  (author)
  • Pou Felix, Josep  (author)
  • Ceballos Recio, Salvador  (author)
  • Darus, Rosheila  (author)
  • Agelidis, Vassilios  (author)