Analysis and Design of the Quasi-Z-Source Inverter for Wide Range of Operation

Ahmed Abdelhakim, Pooya Davari, Frede Blaabjerg, Paolo Mattavelli

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8 Citationer (Scopus)
319 Downloads (Pure)

Abstrakt

Impedance source inverters are experiencing a solid evolution since the first release of the traditional Z-source inverter (ZSI) in 2003, and among the abundant structures, quasi-ZSI (qZSI) is commonly studied for many applications due to its simple structure and having a continuous input current. Despite such attractive performance of the qZSI in various applications, it suffers from an inferior performance during partial-load operation, resulting in a limited range of operation. Hence, this paper introduces a conceptual study of the qZSI partial-load operation, demonstrating two important aspects in order to maintain the highest possible performance within the desired operating range. Firstly, a design aspect concerning the proper sizing of the impedance network inductance using linear and non-linear chokes is introduced. Secondly, a control aspect is proposed based on utilizing higher effective switching frequency through switching among different modulation schemes. Finally, a 3 kVA qZSI prototype is utilized in order to experimentally validate the reported analysis and discussions.
OriginalsprogEngelsk
TitelProceedings of the 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL)
Antal sider6
ForlagIEEE Press
Publikationsdatojun. 2018
Sider1-6
Artikelnummer8458486
ISBN (Trykt)9781538655412
ISBN (Elektronisk)978-1-5386-5541-2
DOI
StatusUdgivet - jun. 2018
Begivenhed19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italien
Varighed: 25 jun. 201828 jun. 2018

Konference

Konference19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018
LandItalien
ByPadova
Periode25/06/201828/06/2018
NavnIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

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