A Modified Less-Switch-Count Switched-Capacitor Multilevel Inverter for Solar PV-Applications

Mohammad Ali, Muhammad Khalid

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

This paper presents a modified single-sourced multilevel inverter (MLI) structure that produces an II-level output voltage with a boosting of 1.25 times the DC-source. The inverter operation suggests low inrush currents through the DC link capacitors, making it a suitable candidate for Solar PV applications with increased reliability in the long-run scenario. It employs 12 switches and two electrolytic capacitors. The modification is performed on a recently introduced Cross-Connected Compact Switched-Capacitor MLI (C3-SCMLI), where IGBTs replace the diodes. Further, the redundant states of the inverter are utilized to maintain the capacitor DC-link at Vdc/2. As the capacitor charging and discharging is through the load, the continuous high inrush current experienced in C3-SCMLI reduces by a multitude. Moreover, the ratings of the switches employed also exhibit lower blocking capability. The operation of the inverter is described and implemented in this work on MATLAB/Simulink.

Original languageEnglish
Title of host publicationProceedings - 2022 5th International Conference on Power Electronics and their Applications, ICPEA 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728161525
DOIs
StatePublished - 2022

Publication series

NameProceedings - 2022 5th International Conference on Power Electronics and their Applications, ICPEA 2022

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

ASJC Scopus subject areas

  • Mechanical Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

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