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International Journal of Electrical Power & Energy Systems
Article . 2016 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Improved SVPWM vector selection approaches in OVM region to reduce common-mode voltage for three-level neutral point clamped inverter

Authors: C. Bharatiraja; C. Bharatiraja; S. Jeevananthan; R. Latha; Josiah L. Munda;

Improved SVPWM vector selection approaches in OVM region to reduce common-mode voltage for three-level neutral point clamped inverter

Abstract

Abstract Multilevel inverters (MLIs) have an essential portion in industrial applications. Eventhough there are various elementary developments in MLI and its pulse width modulation (PWM) control strategies, unfortunately those strategies are least bothered about the common mode voltage (CMV). The CMV appears at the neutral point of the motor’s star connected stator windings with respect to the source ground. This study proposes PWM schemes for three level diode clamped multilevel inverter (DC-MLI) which use an unpretentious switching sequence to determine the triangle for maximum output voltage and minimum CMV in entire modulation range. Here two types of approaches are proposed: (i) Partial elimination SVPWM (PE-SVPWM) and (ii) Full elimination (FE-SVPWM). The proposed strategies suggest switching selection by using the control degree of freedom available in SVPWM without affecting the inverter output voltage. As a result, CMV reduction and elimination with maximum output voltage and better THD is achieved. The proposed PWM approaches can be extended for any number of levels. The theoretical study, the MATLAB/Simulink software based computer simulation and Field Programmable Gate Array (FPGA) SPARTAN-III-3AN-XC3S400 processor supported hardware corroboration have shown the superiority of the proposed technique over the existing SVPWM schemes.

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    44
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
44
Top 10%
Top 10%
Top 10%
gold