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A modified modulation scheme for three-level diode-clamped matrix converter under unbalanced input conditions

Su, Mei; Zhao, Ziyi; Dan, Hanbing; Peng, Tao; Sun, Yao; Che, Ruyu; Zhang, Fan; Zhu, Qi; Wheeler, Patrick

Authors

Mei Su

Ziyi Zhao

Hanbing Dan

Tao Peng

Yao Sun

Ruyu Che

Fan Zhang

Qi Zhu

Patrick Wheeler pat.wheeler@nottingham.ac.uk



Abstract

The three-level diode-clamped matrix converter topology has outstanding performance under ideal operating conditions. However, input disturbance can influence the waveforms at the output side of the converter due to the direct coupling between the input and output. This paper proposes a modified modulation scheme for three-level diode-clamped matrix converter during operation with unbalanced input voltages and when different transformer turns ratios are used for an isolation transformer at the input. With this modulation technique, sinusoidal and balanced output voltages are guaranteed and the input current harmonics are minimized. Experimental results are presented to demonstrate the feasibility and effectiveness of the proposed modulation scheme.

Journal Article Type Article
Publication Date Jul 10, 2018
Journal IET Power Electronics
Electronic ISSN 1755-4543
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 11
Issue 8
APA6 Citation Su, M., Zhao, Z., Dan, H., Peng, T., Sun, Y., Che, R., …Wheeler, P. (2018). A modified modulation scheme for three-level diode-clamped matrix converter under unbalanced input conditions. IET Power Electronics, 11(8), doi:10.1049/iet-pel.2017.0512
DOI https://doi.org/10.1049/iet-pel.2017.0512
Keywords Different transformer turns ratios of the isolation transformer; Three-level diode-clamped matrix converter; Unbalanced input voltages; Modified modulation scheme
Publisher URL http://digital-library.theiet.org/content/journals/10.1049/iet-pel.2017.0512
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Copyright Statement
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