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Design and implementation of a discontinuous SVM applied for a quasi Z-source inverter with power loss reduction

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Abstract

This study proposes a new control strategy for the quasi Z-source two-level three-phase inverter, accurate discontinuous SVM (AD-ZSVPWM). The proposed AD-ZSVPWM control technique enhances the output power quality by reducing total harmonic distortion (THD) and conduction losses. Low THD is achieved by increasing the algorithm’s accuracy using a division of six vector states in each switching period and the distribution of six shoot-through states within the period. The conduction losses are reduced by splitting each sector into two subsectors of 30°. The proposed control scheme has the following advantages: reduced THD, low conduction loss, and increased boosting factor. MATLAB/Simulink software is used, and an experimental test is conducted to validate the proposed strategy. PLECS software is utilized to calculate the switching and conduction losses. For experimental verification, a hardware test bench comprising a dSPACE DS1104 board that controls a three-phase quasi Z-source inverter that supplies an R-L load is used. Simulation and hardware results show that the proposed scheme provides improved performance in terms of power quality and power loss reduction.

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Abbreviations

THD:

Total harmonic distortion

ZSI:

Z-source inverter

QZI:

Quasi Z-source inverter

MBC:

Maximum boost control

SBC:

Simple boost control

MCBC:

Maximum constant boost control

\({T}_{{\text{sht}}}\) :

Time of the shoot-through state

\(T\) :

Cycle time

\({V}_{{c}_{1}},{V}_{{c}_{2}}\) :

Capacitor voltages

B :

Boost factor

\(d\) :

Shoot-through duty ratio

\({V}_{i}\) :

Output voltages

\({V}_{{\text{dc}}}\) :

Input voltage

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Authors and Affiliations

  1. Laboratoire de Commande de Processus (LCP), École Nationale Polytechnique Algiers, El Harrach, Algeria

    Ibtissam Chaib & El Madjid Berkouk

  2. University Kasdi Merbah Ouargla, Ouargla, Algeria

    Ibtissam Chaib

  3. Power Electronics and Renewable Energy Research Laboratory (PEARL), Universiti Malaya, Kuala Lumpur, Malaysia

    Mostefa Kermadi & Nassereddine Sabeur

  4. School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC, Australia

    Saad Mekhilef, Mehdi Seyedmahmoudian & Alex Stojcevski

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  1. Ibtissam Chaib
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  2. Mostefa Kermadi
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  4. El Madjid Berkouk
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  5. Nassereddine Sabeur
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Correspondence to Ibtissam Chaib.

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Chaib, I., Kermadi, M., Mekhilef, S. et al. Design and implementation of a discontinuous SVM applied for a quasi Z-source inverter with power loss reduction. J. Power Electron. (2024). https://doi.org/10.1007/s43236-024-00824-2

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  • DOI: https://doi.org/10.1007/s43236-024-00824-2

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