A Modulation Scheme for Matrix Converters With Perfect Zero Common-Mode Voltage

This paper presents a novel space vector modulation (SVM) method combined with a modified four-step commutation to achieve a perfect zero common-mode voltage (CMV) for matrix converters (MCs). The new SVM method was developed by using only rotating input voltage vectors, which results in the CMV for...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2016-08, Vol.31 (8), p.5411-5422
Main Authors: Nguyen, Huu-Nhan, Lee, Hong-Hee
Format: Article
Language:English
Subjects:
common-mode voltage
Commutation
commutation strategy
Computer programs
Electric currents
Electric potential
Leakage currents
Matrix
Matrix converter
Matrix converters
Modulation
Noise
Noise control
rotating vector
Software
space vector modulation
Support vector machines
Switches
Vector space
Voltage
Voltage control
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Summary:This paper presents a novel space vector modulation (SVM) method combined with a modified four-step commutation to achieve a perfect zero common-mode voltage (CMV) for matrix converters (MCs). The new SVM method was developed by using only rotating input voltage vectors, which results in the CMV for MCs being zero. However, it causes some noise in practical applications that drive MCs with traditional four-step commutation. In order to solve this noise problem, a modified four-step commutation is also proposed to perfectly eliminate the CMV for MCs without any noise. In the modified four-step commutation, a delay time is designed to deal with misjudgment of input voltages. The proposed SVM method and four-step commutation are easily implemented via software and achieve good performance in input/output current waveforms. Prototype experiments were carried out to evaluate the performance of the proposed method.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2015.2493339