Open AccessSingle‐stage, single‐phase, ac–dc buck–boost converter for low‐voltage applications
Author(s) -
Abdelsalam Ibrahim,
Adam Grain P,
Holliday Derrick,
Williams Barry W
Publication year - 2014
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.2013.0754
Subject(s) - buck converter , buck–boost converter , boost converter , ćuk converter , forward converter , computer science , flyback converter , electronic engineering , power (physics) , voltage , control theory (sociology) , electrical engineering , engineering , physics , control (management) , quantum mechanics , artificial intelligence
The suitability of a single‐stage ac–dc buck–boost converter for low‐voltage applications is investigated. In‐depth discussion and analysis of the converter's operating principle, basic relationships that govern converter steady‐state operation and details of the necessary control structures needed to comply with the grid code are provided. The validity of the proposed system is confirmed using power system computer aided design (PSCAD)/electromagnetic transients including DC (EMTDC) simulations, and is substantiated experimentally. The buck–boost converter under investigation has good dynamic performance in both buck and boost modes, and ensures near unity input power factor over the full operating range, whilst having fewer devices and passive elements than other published versions of the buck–boost converter.