Open AccessImplementation of a common grounded Z‐source DC–DC converter with improved operation factors
Author(s) -
Rostami Sajad,
Abbasi Vahid,
Blaabjerg Frede
Publication year - 2019
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.2018.6044
Subject(s) - inductor , converters , duty cycle , boost converter , ripple , forward converter , voltage , voltage source , ćuk converter , diode , flyback converter , electrical engineering , electronic engineering , engineering , computer science
This study proposes a common grounded Z‐source DC–DC converter. In comparison with a conventional Z‐source converter, it converts voltage with higher voltage gain and lower voltage stress on the switch and diodes that means an improvement in efficiency. In addition, increasing the duty cycle reduces its output voltage ripple percentage that improves its operation quality. The converter is analysed and compared with other converters. Its main equations are obtained, which show the converter advantages as lower voltage stress, smaller inductors and higher voltage gain in comparison with the reviewed converters. A prototype for the proposed converter is prepared based on analysis and theoretical parts. Experiments are done along with the analysis. Experimental results and theoretical equations are used to show the converter advantages.