An improved asymmetrical multi‐level inverter topology with boosted output voltage and reduced components count

Autor: M Saad Bin Arif, Uvais Mustafa, Marif Daula Siddique, Shahbaz Ahmad, Atif Iqbal, Ratil Hasnat Ashique, Shahrin bin Ayob
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: IET Power Electronics, Vol 14, Iss 12, Pp 2052-2066 (2021)
Druh dokumentu: article
ISSN: 1755-4543
1755-4535
DOI: 10.1049/pel2.12119
Popis: Abstract This paper presents an improved Multi‐level Inverter topology utilizing the concept of boosting‐capacitor and two DC sources with reduced switches count for generating 17‐level output. The topology employs 10 unidirectional switches including one bidirectional switch. Comparison with other recent topologies shows that the proposed topology employs a reduced number of devices and better performance. The topology combines the modularity of H‐Bridge with the boosting capacity of the switched capacitor topology. Special care is taken while designing the switching strategy for voltage balancing of the capacitors. The authors also have generalized the topology to produce ‘n’ level output. Relevant expressions are also formed and reported. Experimental validation, as well as simulation, is performed, and results are verified. Nearest level control is used as the modulation technique.
Databáze: Directory of Open Access Journals
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