NDLI: A simple voltage balancing method for modular multilevel converter

Content Provider	IEEE Xplore Digital Library
Author	Peng Dong Jianwen Zhang Jing Lv Xu Cai
Copyright Year	2015
Description	Author affiliation: Wind Power Res. Center, Shanghai Jiao Tong Univ., Shanghai, China (Peng Dong; Jianwen Zhang; Jing Lv; Xu Cai)
Abstract	The modular multilevel converter (MMC) is one of the most promising converter topologies for medium/high-power applications. One of the technical challenges associated with the control of an MMC is the capacitor voltage balancing among arm capacitors. This paper presents a novel capacitor voltage balancing method combined with the carrier-phase-shifted pulse-width modulation (CPS-PWM) for MMC without measuring the arm current. The proposed method is based on a coordinated control of the pulse distribution and pulse rotation. In this way, the main drawbacks of the existing methods, such as redundancy switching actions, feedback delay, interference with output voltage, and intensive computation can be avoided. Experimental results verify the performance of the proposed capacitor voltage balancing method.
Sponsorship	IEEE
Starting Page	002372
Ending Page	002377
File Size	1008395
Page Count	6
File Format	PDF
e-ISBN	9781479917624
DOI	10.1109/IECON.2015.7392457
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-09
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors Voltage control Switches Modulation Topology Sorting Converters pulse rotation modular multilevel converter (MMC) capacitor voltage balancing pulse distribution
Content Type	Text
Resource Type	Article

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