IEEE Access (Jan 2020)

A New Three-Phase Multi-Level Asymmetrical Inverter With Optimum Hardware Components

  • C. Dhanamjayulu,
  • Palanisamy Kaliannan,
  • Sanjeevikumar Padmanaban,
  • Pandav Kiran Maroti,
  • Jens Bo Holm-Nielsen

DOI
https://doi.org/10.1109/ACCESS.2020.3039831
Journal volume & issue
Vol. 8
pp. 212515 – 212528

Abstract

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In this article, a novel three-phase asymmetrical multilevel inverter is presented. The proposed inverter is designed with an optimal hardware components to generate three-phase nineteen output voltage levels. The proposed inverter exhibits various advantages like a suitable output voltage waveform with improved power quality, lower total harmonic distortion (THD), and more moderate complexity, reduction in cost, reduced power losses, and improved efficiency. A comparison of the proposed topology in terms of several parameters with existing methods illustrates its merits and features. The proposed inverter tested with steady-state and dynamic load disturbances. Various experimental results are included in this article to validate the performance of the proposed inverter during various extremities. In addition, a detailed comparison is tabulated between simulation and experimental results graphically. The proposed inverter has been stable even during load disturbance conditions. The simulation and feasibility model are verified using a prototype model.

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