Open AccessImproved ac/ac choppers‐based voltage regulator designs
Author(s) -
Khan Muhammad Mansoor,
Rana Ahmad,
Dong Fei
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.2013.0699
Subject(s) - chopper , voltage sag , compensation (psychology) , control theory (sociology) , matlab , swell , voltage , computer science , voltage regulator , electronic engineering , engineering , electrical engineering , control (management) , physics , psychology , thermodynamics , artificial intelligence , psychoanalysis , power quality , operating system
This paper proposes a robust design for the ac/ac chopper‐based voltage sag/swell compensation systems. This includes the design of a new buck–boost topology and the application of a robust switching scheme for a voltage compensator. The proposed circuit can operate in the buck or boost mode for both the sag and the swell compensations. A control scheme for a fast compensation is also proposed which is suitable for the ac/ac chopper‐based compensation system. Detailed analysis and verification through a simulation in the MATLAB are presented highlighting the advantages of the proposed technique. An experimental verification has also been performed by using a laboratory prototype system.