NDLI: A novel modulation scheme and voltage balancing algorithm for modular multilevel converter

Content Provider	IEEE Xplore Digital Library
Author	Dekka, A. Bin Wu Zargari, N.R.
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada (Dekka, A.; Bin Wu) \|\| Medium-Voltage Drive R&D, Rockwell Autom., Cambridge, ON, Canada (Zargari, N.R.)
Abstract	This paper presents a low cost, less computational pulse width modulation scheme for a modular multilevel converter (MMC). In the present control approach, the reference output voltage is generated by averaging the two nearest voltage levels. The switching states corresponding to the two nearest voltage levels and their duty cycles are obtained from the instantaneous value of reference output voltage. The proposed modulation scheme is easily extended to any number of submodules per arm without any modifications. In addition, a voltage balancing algorithm is proposed for the balancing of submodule capacitors voltage. The performance of the proposed modulation scheme and voltage balancing algorithm is evaluated on the 2MVA/6kV MMC system with three-level flying capacitor submodules. Also, the proposed modulation scheme is compared with the conventional phase-shifted carrier pulse width modulation (PSC-PWM) scheme and the results are presented.
Starting Page	1227
Ending Page	1233
File Size	683951
Page Count	7
File Format	PDF
ISBN	9781479967353
DOI	10.1109/APEC.2015.7104504
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-03-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors Voltage control Pulse width modulation Switches Converters Heuristic algorithms three-level flying capacitor converter (3L-FC) Capacitor voltage balancing modular multilevel converter (MMC) phase-shifted carrier pulse width modulation (PSC-PWM) pulse width modulation (PWM)
Content Type	Text
Resource Type	Article

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