Open AccessOutput voltage tracking controller embedding auto‐tuning algorithm for DC/DC boost converters
Author(s) -
Choi Kyunghwan,
Kim Yonghun,
Kim KyungSoo,
Kim SeokKyoon
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.2018.6021
Subject(s) - control theory (sociology) , converters , cascade , controller (irrigation) , voltage , transient (computer programming) , computer science , boost converter , transient response , algorithm , engineering , control (management) , agronomy , artificial intelligence , chemical engineering , electrical engineering , biology , operating system
This study suggests a non‐linear output voltage tracking controller for DC/DC boost converters in the form of a classical cascade control structure. Non‐linearities in the converter dynamics as well as parameter uncertainties and load variations are considered. The first contribution of this study is the design of an auto‐tuner, which automatically adjusts the control gain according to the output voltage error to enhance transient performance. The second contribution involves proving that the closed‐loop system ensures the performance recovery without any steady‐state errors in the presence of parameter and load variations. The effectiveness of the proposed algorithm was verified through experimental investigations using a 5 kW prototype DC/DC boost converter.