<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The impedance network makes it possible to increase and decrease the voltage, which is not available in normal inverters (voltage and current sources).This paper presents a modified topology and modulation technique for a three-phase Modified Z-Source Neutral-Point Clamped (MZS-NPC) inverter. A modulation scheme for the proposed topology is designed based on maximum gain control method to achieve the maximum voltage gain by simple implementation and balancing the neutral point voltage of the dc link. In order to supply the desired voltage to the critical load in an islanded micro-grid, a closed-loop ac voltage controller is realized in fuel cell or photovoltaic applications based on the proposed inverter. The ability to reinforce and validity of topology operations and modulation techniques has been demonstrated by simulation. It should be noted that the simulations are implemented in MATLAB / Simulink software.</p>
</abstract>

The impedance network makes it possible to increase and decrease the voltage, which is not available in normal inverters (voltage and current sources).This paper presents a modified topology and modulation technique for a three-phase Modified Z-Source Neutral-Point Clamped (MZS-NPC) inverter. A modulation scheme for the proposed topology is designed based on maximum gain control method to achieve the maximum voltage gain by simple implementation and balancing the neutral point voltage of the dc link. In order to supply the desired voltage to the critical load in an islanded micro-grid, a closed-loop ac voltage controller is realized in fuel cell or photovoltaic applications based on the proposed inverter. The ability to reinforce and validity of topology operations and modulation techniques has been demonstrated by simulation. It should be noted that the simulations are implemented in MATLAB / Simulink software.

Modified Topology and Modulation Technique for Z-Source Neutral-Point Clamped Inverter

Mazandaran University of Science and Technology

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The impedance network makes it possible to increase and decrease the voltage, which is not available in normal inverters (voltage and current sources).This...

Modified Topology and Modulation Technique for Z-Source Neutral-Point Clamped Inverter

Published Online: Oct 28, 2022

Page range: 210 - 226

Received: Aug 12, 2022

Accepted: Sep 29, 2022

DOI: https://doi.org/10.2478/pead-2022-0016

Keywords
Modulation, Optimization, Multilevel inverter, MZS-NPC

© 2022 Ehsan Akbari et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Modified Topology and Modulation Technique for Z-Source Neutral-Point Clamped Inverter

Published Online: Oct 28, 2022

Page range: 210 - 226

Received: Aug 12, 2022

Accepted: Sep 29, 2022

DOI: https://doi.org/10.2478/pead-2022-0016

KeywordsModulation, Optimization, Multilevel inverter, MZS-NPC

© 2022 Ehsan Akbari et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Modulation, Optimization, Multilevel inverter, MZS-NPC