A Robust Second-Order Sliding Mode Control of Sensorless Five Level Packed U Cell Inverter

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9 Citations (Scopus)

Abstract

In this paper, a second order sliding mode based Super Twisting (ST) controller is designed and implemented on sensorless five-level packed U cell inverter (PUC5). The aim is to enhance the inverter performance and achieve better robustness. A low complexity modulation strategy is employed. It contains a few logic blocks and two level-shifted carriers, which reduces the computation time and eases the implementation. Moreover, it ensures quick and self-balancing of the inverter capacitor voltage. Employing the proposed super-twisting controller leads to a significant enhancement of dynamic response and steady-state performance of the PUC5. It provides better accuracy in the tracking of the reference current, which results in high power quality, and helps in fast self-balancing of the capacitor voltage. The feasibility and the effectiveness of the proposed controller has been verified by simulation and experimentally. The obtained results show the higher performance of the super twisting controller in stand-alone mode of operation.

Original languageEnglish
Title of host publicationProceedings - IECON 2020
Subtitle of host publication46th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages2412-2417
Number of pages6
ISBN (Electronic)9781728154145
DOIs
Publication statusPublished - 18 Oct 2020
Externally publishedYes
Event46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore
Duration: 19 Oct 202021 Oct 2020

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2020-October

Conference

Conference46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Country/TerritorySingapore
CityVirtual, Singapore
Period19/10/2021/10/20

Keywords

  • Multilevel Inverter
  • PUC5
  • Packed U-Cell inverter
  • Sensorless
  • Sliding mode

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