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A review of developments in the family of modular multilevel cascade converters
Author(s) -
Akagi Hirofumi
Publication year - 2018
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22731
Subject(s) - modular design , converters , pulse width modulation , cascade , computer science , h bridge , backplane , topology (electrical circuits) , engineering , electronic engineering , electrical engineering , voltage , operating system , chemical engineering
This paper starts with a historical review of the family of modular multilevel cascade converters, and the topology and terminology of the family. Then, it answers the following question: ‘What motivated the author to apply phase‐shifted‐carrier pulse‐width modulation (PSC PWM) to the family?’ The success in academic research on this application owes to integrating inter‐cluster balancing or inter‐arm balancing control into the middle layer of a hierarchical control system consisting of three layers. This integration makes it easy to expand the PSC PWM to any bridge‐cell or chopper‐cell count per cluster or arm. Finally, this paper ends with future scenarios of a few promising family members and their practical applications, from the personal experience and view of the author. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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