Z(TN) Observability Concept Analysis for Power Flying Capacitors of Multicells Converters

Abstract-In this paper, a new Z(T N ) observability concept is proposed for power flying capacitors of multicell converter based on ordering of sequences. The aim is to solve the problem of capacitor's voltages estimation by tacking account the hybrid behavior appearing in the power multicell c...

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Bibliographic Details
Published inElectric power components and systems Vol. 49; no. 11-12; pp. 1021 - 1033
Main Authors Meradi, Samir, Benmansour, Khelifa, Tadjine, Mohamed, Boucherit, Mohamed Seghir
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 13.05.2022
Taylor & Francis Ltd
Subjects
Capacitors
Converters
high order sliding mode observer
hybrid systems
Load fluctuation
Load resistance
multicell converter
observability
ordering of the sequences
Z(T
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Summary:Abstract-In this paper, a new Z(T N ) observability concept is proposed for power flying capacitors of multicell converter based on ordering of sequences. The aim is to solve the problem of capacitor's voltages estimation by tacking account the hybrid behavior appearing in the power multicell converters and the ordering of the sequences. Furthermore, an analysis of obervability is introduced. Some illustrative results of a3-cell-converter with two legs are given in order to show the efficiency of the proposed approach by using high order sliding mode observer. The applicability of the designed observers are emphasized by the robustness test with resistance load variation. Finally, experimental results are presented in order to illustrate the performance of the proposed approach.
ISSN:1532-5008
1532-5016
DOI:10.1080/15325008.2021.2013994