Open AccessIntegrated boost‐forward‐flyback converter with high step‐up for green energy power‐conversion applications
Author(s) -
Tseng KuoChing,
Huang HaoShiang,
Cheng ChunAn
Publication year - 2021
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/pel2.12003
Subject(s) - flyback converter , buck–boost converter , boost converter , forward converter , flyback transformer , ćuk converter , electrical engineering , buck converter , photovoltaic system , voltage doubler , voltage , electronic engineering , engineering , computer science , voltage regulation , transformer , dropout voltage
An isolated high step‐up converter is proposed for renewable energy sources with low voltages, such as photovoltaic (PV) cells of solar energy and fuel cells of hydrogen energy, to achieve high voltage levels for series‐connection batteries and DC‐bus voltage sources. The proposed integrated boost‐forward‐flyback converter (IBFFC) is achieved by integrating a boost converter, a forward‐flyback converter and a voltage doubler. Moreover, an active‐clamp function is employed to recycle the energy of leakage inductance. An 800 W‐rated prototype has been implemented to verify the functionality of the presented converter; it offers an input voltage of 48 V and an output voltage of 400 V. In addition, the maximum efficiency is approximately 94%.