Open AccessBidirectional DC–DC converter with high gain based on impedance source
Author(s) -
Ortega Manuel,
Ortega María Victoria,
Jurado Francisco,
Carpio José,
Vera David
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.2018.5385
Subject(s) - duty cycle , inductor , electrical impedance , electronic engineering , boost converter , output impedance , electrical engineering , ćuk converter , forward converter , linearity , transistor , engineering , materials science , computer science , voltage
This study presents a new bidirectional DC–DC converter with high gains, based on impedance source. The design of the impedance network has been studied in step‐up and step‐down modes. The most significant innovations of the proposed converter are the linearity of the high gains in step‐up and step‐down modes with respect to the cycle variations and a full use of the duty cycle, very few passive and semiconductor elements are needed to implement the converter. The switching techniques are very simple, since only the switching of a single transistor in each mode is required. To improve efficiency, the cores of the inductors have been constructed with nanocrystalline material and the resistance of Z‐red has been reduced as much as possible. Finally, a laboratory prototype has been implemented.