A Virtual Space Vector Modulation Technique for the Reduction of Common-Mode Voltages in Both Magnitude and Third-Order Component

A virtual space vector modulation technique reducing both magnitude and third-order harmonic component of the common-mode voltage (CMV) in a two-level voltage-source inverter (VSI) is proposed in this paper. The presented method employs a set of virtual space vectors constructed from original statio...

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Published inIEEE transactions on power electronics Vol. 31; no. 1; pp. 839 - 848
Main Authors Kai Tian, Jiacheng Wang, Bin Wu, Zhongyuan Cheng, Zargari, Navid Reza
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Common mode voltage
Electric potential
Electric power
Electrical equipment
Harmonic analysis
Harmonics
Inverters
Mathematical analysis
Modulation
Power harmonic filters
Simulation
Space vector modulation
Support vector machines
Switches
Third-order harmonic component
Vector space
Vectors
Vectors (mathematics)
Virtual networks
Virtual space vector
Voltage
Voltage source inverter
Common mode voltage
space vector modulation
virtual space vector
third-order harmonic component
voltage source inverter
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Summary:A virtual space vector modulation technique reducing both magnitude and third-order harmonic component of the common-mode voltage (CMV) in a two-level voltage-source inverter (VSI) is proposed in this paper. The presented method employs a set of virtual space vectors constructed from original stationary space vectors to conduct modulation. Since the created virtual vectors have the lowest instantaneous and zero average CMVs, both the magnitude and third-order harmonic component of the generated CMV are reduced, contributing to better overall CMV performance and common-mode filter design in VSI applications. Three variants of the proposed modulation method using different virtual space vector combinations are presented. The concept of the virtual space vector modulation technique demonstrated with two-level inverter in this paper can also be extended to multilevel inverters. Simulation and experimental results, as well as comparisons with existing methods are provided to verify the proposed technique.
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ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2015.2408812