Improved phase disposition pulse width modulation for a modified cascaded dual-output multilevel converter

Improved phase disposition pulse width modulation for a modified cascaded dual-output multilevel converter

This paper presents an improved phase-disposition pulse width modulation for the Cascaded Dual-Output Multilevel (CDOM) converter. Additionally, the traditional CDOM converter is modified to be operated with reduced switching components without effecting the system operation. A phase-disposition pul...

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Bibliographic Details
Main Authors: Ahmed S. Hussein, Amer Mohammad Yusuf Mohammad Ghias
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2022
Subjects:
Engineering::Electrical and electronic engineering::Power electronics
Multilevel
Dual-Output
Cascaded
Cost Function
Optimum State
Switching Frequency
Online Access:https://hdl.handle.net/10356/156680
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Institution: Nanyang Technological University
Language: English
Description
Summary:This paper presents an improved phase-disposition pulse width modulation for the Cascaded Dual-Output Multilevel (CDOM) converter. Additionally, the traditional CDOM converter is modified to be operated with reduced switching components without effecting the system operation. A phase-disposition pulse width modulation is modified for optimal state to operate the converter under minimized average power device switching frequency. A cost function based on hamming distance of the switching states is utilized to control the proposed converter. The performance of the converter is demonstrated and evaluated for common and different frequency outputs using MATLAB simulations. The converter is operational under a wide variety of operation points and the modulation scheme is shown to be effective in significantly reducing the average device switching frequency.

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