Open AccessFamily of high‐boost Z ‐source inverters with combined switched‐inductor and transformer cells
Author(s) -
Nguyen MinhKhai,
Lim YoungCheol,
Park SungJun,
Shin DuckShick
Publication year - 2013
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.2013.0033
Subject(s) - inverter , inductor , duty cycle , transformer , waveform , voltage , electronic engineering , engineering , electrical engineering , computer science
This study proposes a new family of high‐boost Z ‐source inverters (ZSIs) with combined switched‐inductor and transformer cells. By changing the transformer turn ratio, the number of switched‐inductor cells and shoot‐through duty cycle, the proposed inverter produces high voltage gain. Compared with the conventional high‐boost ZSI topologies for the same input and output voltage, the proposed inverter uses a higher modulation index to improve the output waveform. An alternate‐cascaded technique is applied to the proposed inverter to distribute the stresses on the passive components. This study presents the operating principles and analysis. To verify the performance of the proposed inverter, simulation and experimental results are shown with various transformer turn ratios.