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Performance Comparison of Asymmetrical Multilevel Inverter with Different Switching Techniques

Author

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  • Ashish Srivastava

    (Rajkiya Engineering College Banda, AKTU Lucknow, Banda 210201, Uttar Pradesh, India)

  • Anurag Chauhan

    (Rajkiya Engineering College Banda, AKTU Lucknow, Banda 210201, Uttar Pradesh, India)

  • Anurag Tripathi

    (Institute of Engineering and Technology Lucknow, Lucknow 226021, Uttar Pradesh, India)

Abstract

In the present context, the asymmetrical multilevel inverter (AMLI) with minimal switches is extensively used to achieve high power quality across a load. The conventional inverter suffers from the disadvantages of large system components, low efficiency, high THD, high losses, etc. The asymmetrical multilevel inverter therefore offers an appropriate alternative to address the key issues of conventional inverters. The present paper aims to analyze the performance comparison of the proposed 15-level AMLI structure with different switching techniques, i.e., NLC, SHEPWM and SPWM. Moreover, loss analysis of the considered AMLI has been performed for different switching techniques. Furthermore, different performance parameters such as conduction losses, switching losses, total losses, THD, efficiency and power delivery of the inverter have been evaluated. It has been observed that the considered inverter topology offers the superior performance with the SHEPWM modulation technique at a modulation index of 0.8. Finally, hardware arrangement of the inverter has also been developed in the laboratory with a real-time Opal-RT 4510 simulator to verify the accuracy of simulation results.

Suggested Citation

  • Ashish Srivastava & Anurag Chauhan & Anurag Tripathi, 2025. "Performance Comparison of Asymmetrical Multilevel Inverter with Different Switching Techniques," Energies, MDPI, vol. 18(3), pages 1-19, February.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:3:p:715-:d:1583614
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    References listed on IDEAS

    as
    1. Naser Vosoughi Kurdkandi & Kazem Varesi & Jaber Fallah Ardashir & Wei Gao & Zhi Cao & Chunting (Chris) Mi, 2024. "Transformer-Less Seven-Level Inverter with Triple Boosting Capability and Common Ground," Energies, MDPI, vol. 17(13), pages 1-19, June.
    2. Mohd Faraz Ahmad & M. Saad Bin Arif & Uvais Mustafa & Mohamed Abdelrahem & Jose Rodriguez & Shahrin Md. Ayob, 2024. "An Improved Single-Phase Multiple DC Source Inverter Topology for Distributed Energy System Applications," Energies, MDPI, vol. 17(9), pages 1-16, April.
    3. Nurbanu Catalbas & Ahmet Gungor Pakfiliz & Gokhan Soysal, 2024. "Multilevel Aircraft-Inverter Design Based on Wavelet PWM for More Electric Aircraft," Energies, MDPI, vol. 17(9), pages 1-23, April.
    4. Van-Thang Nguyen & Ji-Won Kim & Jae-Woon Lee & Byoung-Gun Park, 2024. "Optimal Design of a Submodule Capacitor in a Modular Multilevel Converter for Medium Voltage Motor Drives," Energies, MDPI, vol. 17(2), pages 1-18, January.
    5. Ankita Choudhary & Ashutosh Kumar Singh & Rajib Kumar Mandal & Akshay Kumar Saha, 2024. "Switched Capacitor Inverter with Reduced Inrush Current and High Boosting Gain," Energies, MDPI, vol. 17(13), pages 1-21, June.
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