Oghorada, OJK and Zhang, LI (2016) Performance Evaluation of Pulse Width Modulation Techniques for Losses Reduction in Modular Multilevel Flying Capacitor Converter. In: Power Electronics, Machines and Drives (PEMD 2016), 8th IET International Conference on. Power Electronics, Machines and Drives, 19-21 Apr 2016, The Hilton Hotel, Glasgow, UK. IEEE ISBN 978-1-78561-188-9
Abstract
This paper presents the analysis and evaluation of power losses in a modular multilevel flying capacitor converter (MMFCC) controlled by three different pulse width modulation techniques. A new unipolar hybrid PWM scheme, which combines phase disposed PWM (PD-PWM) and phase shifted PWM (PS-PWM), is proposed. Detailed electrical and thermal models of the single star configured FC cells are implemented and simulated using MATLAB/SIMULINK and PLECS. The conduction and switching losses of semiconductor devices and power losses of floating capacitors in the simulated MMCC are evaluated. The results show that the proposed PWM scheme gives the lowest overall power losses and hence the highest efficiency of the three methods under different modulation index variations. Furthermore, the quality of the voltage waveform of the proposed method is as good as that obtained by using PS-PWM.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works. |
Keywords: | Phase-shifted-PWM; Phase-disposed-PWM; Hybrid-PWM; Modular multilevel flying capacitor converter; power losses |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Nov 2016 15:52 |
Last Modified: | 15 Jan 2018 18:13 |
Published Version: | https://doi.org/10.1049/cp.2016.0376 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1049/cp.2016.0376 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:99418 |