Open AccessDesign and analysis of operating strategies for a generalised voltage‐source power supply based on internal model principle
Author(s) -
Zou Zhixiang,
Wang Zheng,
Cheng Ming
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.2013.0159
Subject(s) - voltage source , switched mode power supply applications , switched mode power supply , voltage regulator , power supply rejection ratio , voltage regulation , voltage optimisation , computer science , voltage , waveform , electronic engineering , power (physics) , dropout voltage , control theory (sociology) , voltage reference , voltage divider , engineering , constant power circuit , electrical engineering , physics , control (management) , quantum mechanics , artificial intelligence
This study presents a generalised voltage‐source power supply to generate arbitrary shapes of voltage waveforms. The proposed voltage‐source power supply can not only generate sinusoidal fundamental voltage waveforms, but also produce desired harmonic and asymmetrical voltage waveforms for applications of series active power filter, dynamic voltage regulator, uninterrupted power supply and programmable AC power source. The purpose of this study is to propose a novel operating strategy under synchronous coordinate frame based on internal model principle controllers, in such a way that it can provide more accurate tracking ability for generalised voltage references. Besides, the features of fast dynamic response, high stability and easy implementation are offered. The detailed design and analysis for the proposed strategy are given. An improved virtual resistor method is proposed to further improve the performance of the generalised voltage‐source power supply. Both simulated and experimental results are given to verify the validity of the proposed approaches.