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AuthorMahmood, Arshad
AuthorZaid, Mohammad
AuthorKhan, Shahrukh
AuthorSiddique, Marif Daula
AuthorIqbal, Atif
AuthorSarwer, Zeeshan
Available date2022-02-27T05:38:26Z
Publication Date2022
Publication NameInternational Journal of Circuit Theory and Applications
ResourceScopus
ISSN0098-9886
URIhttp://dx.doi.org/10.1002/cta.3162
URIhttp://hdl.handle.net/10576/27414
AbstractTo overcome the problems associated with Z-source-based DC-DC converters, a quasi-Z-source (QZS)-based high-gain DC-DC boost converter with switched capacitors is proposed in this work. Z-source-based DC-DC converters have problems like low-voltage gain, discontinuous input current, and high-voltage stress on the active and passive components. The proposed converter can produce a high-voltage gain of more than 10 times for a duty cycle of less than 0.5. The converter has other desirable features like reduced voltage stress across the switching components and continuous input current (CIC). It comprises a QZS cell made up of switched inductors and a voltage multiplier cell (VMC) made up of switched capacitors. The power loss analysis is done using PLECS software by incorporating the real parameters of switches and diodes from the datasheet. A hardware prototype of 200 W is developed in the laboratory to verify the working of the converter. In experimental results for an output power of 200 W, the converter is operated with a source voltage of 33 V at a duty ratio of 0.4 providing an output voltage of 395 V. The converter performance is good in open-loop conditions and is verified through experimental results.
SponsorThis work was supported by the Qatar University?Marubeni Concept to Prototype Development Research Grant MCTP?CENG?2020?2 from the Qatar University.
Languageen
PublisherJohn Wiley and Sons Ltd
SubjectGain measurement
HVDC power transmission
Duty ratio (?)
Duty ratios
High gain
Input current
Quasi-Z-source
Switched capacitor
Voltage multiplier cell
Voltage multipliers
Voltage stress
Z-Source
DC-DC converters
TitleA non-isolated quasi-Z-source-based high-gain DC-DC converter
TypeArticle
Pagination653-682
Issue Number2
Volume Number50
dc.accessType Abstract Only


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