Open AccessClass of high boost inverters based on switched‐inductor structure
Author(s) -
Nguyen MinhKhai,
Le TuanVu,
Park SungJun,
Lim YoungCheol,
Yoo JiYoon
Publication year - 2015
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.2014.0471
Subject(s) - inductor , ripple , diode , voltage , boost converter , electronic engineering , topology (electrical circuits) , computer science , electrical engineering , engineering
This study deals with a class of the switched‐inductor boost inverters (SLBIs) including the DC‐linked type, continuous, discontinuous and ripple input current topologies. Compared with the conventional switched boost inverters, the SLBIs add only three diodes and one inductor to obtain a strong boost factor. In comparison with the conventional switched‐inductor Z‐source inverters (ZSIs) for the same voltage gain at the same modulation indexes, the proposed SLBIs use one more active switch and less passive components which results in reducing the size and cost. Moreover, the efficiency of the proposed inverters is improved in comparison with the conventional switched‐inductor ZSIs. Analysis and operating principles are presented. A laboratory prototype was built with 24, 36, 48 V DC input and 127 Vrms output voltage to test high boost ability of the proposed inverters.