Open AccessEvaluation of cascaded voltage step‐up cells applied to the quasi‐Z‐source DC–DC converter
Author(s) -
Faistel Tiago Miguel Klein,
Guisso Ronaldo Antonio,
Andrade António Manuel Santos Spencer
Publication year - 2020
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2019.1563
Subject(s) - converters , boost converter , forward converter , voltage , ćuk converter , electronic engineering , charge pump , control theory (sociology) , topology (electrical circuits) , engineering , computer science , electrical engineering , capacitor , control (management) , artificial intelligence
This study presents a set of four cascaded step‐up DC–DC converter with the quasi‐Z source (qZS). By associating the voltage step‐up cells at the input that qZS converter, depending on the configuration, their gain can multiply different factors that each cell with the qZS converter voltage gain. In addition, voltage and current stresses on components change. To evaluate the proposed converters the following characteristics are observed: the principle of operation, the voltage gain of the converters, low voltage and comparative evaluation. In order to demonstrate the simplicity of operation of the proposed converters to higher‐order topology, qZS with boost factor and super‐lift cells is modelled and controlled. Finally, to validate the theoretical analyses, two prototypes of 200 W were implemented experimentally.