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A Modified Third Harmonic Pulse-Width Modulation for Reduced Switching Loss in Cascaded H-Bridge Multilevel Invertersoa mark
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Publication Year
2019-01-01
Journal
IFAC-PapersOnLine
Publisher
Elsevier B.V.
Citation
IFAC-PapersOnLine, Vol.52 No.4, pp.472-476
Keyword
cascaded H-bridge multilevel inverterMedium-voltage direct currentmodulation methodsmulti-cell topologyswitching loss
Mesh Keyword
Cascaded h-bridge multilevel invertersDirect currentModulation methodsMulticellSwitching loss
All Science Classification Codes (ASJC)
Control and Systems Engineering
Abstract
A cascaded H-bridge multilevel inverter (CHMI) is one of the promising candidates for high-voltage direct current (HVDC) distribution system. The huge number of inverter cells and switching devices, which consists CHMI, imply a great switching loss and it requires increased cost and size of the cooling components. To reduce the huge switching loss, a pulse-width modulation (PWM) strategy is proposed in this paper, which is composed of two different modulation methods. In addition, an additional cell rotation method is proposed to evenly distribute power among inverter cells which allow shaping three-phase output currents with reduced switching loss. The simulation results verify the validity of the proposed modulation scheme.
ISSN
2405-8963
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36413
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85076181473&origin=inward
DOI
https://doi.org/10.1016/j.ifacol.2019.08.255
Journal URL
http://www.journals.elsevier.com/ifac-papersonline/
Type
Conference
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Lee, Kyo-Beum이교범
Department of Electrical and Computer Engineering
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