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

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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Cite this article

[IEEE Style]

I. Chaib, M. Kermadi, S. Mekhilef, E. M. Berkouk, N. Sabeur, M. Seyedmahmoudian, A. Stojcevski, "Design and implementation of a discontinuous SVM applied for a quasi Z‑source inverter with power loss reduction," Journal of Power Electronics, vol. 24, no. 10, pp. 1584-1595, 2024. DOI: 10.1007/s43236-024-00824-2.

[ACM Style]

Ibtissam Chaib, Mostefa Kermadi, Saad Mekhilef, El Madjid Berkouk, Nassereddine Sabeur, Mehdi Seyedmahmoudian, and Alex Stojcevski. 2024. Design and implementation of a discontinuous SVM applied for a quasi Z‑source inverter with power loss reduction. Journal of Power Electronics, 24, 10, (2024), 1584-1595. DOI: 10.1007/s43236-024-00824-2.