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标题：Design and Simulation of a Fuzzy Non Linear PI Controller for Dc-Dc Buck Converter for Low Steady State Deviations and Its Performance Comparison with PI Controller
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作者：R. Ganesan ; S. Vignesh
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：5
页码：12695
出版社：S&S Publications
摘要：DC- DC converter plays an important role in power conversion. They are used in many applications likecomputer power supplies, switching mode regulators etc. Control action of buck converters involves maintainingconstant output voltage in the presence of change in load and change in supply voltage conditions. Traditionalcontrollers like PID controllers have limitation in control action whenever the changes are rapid in nature. Fuzzycontrollers described by linguistic variables can be employed for buck converter output voltage control. Fuzzycontroller can be used as stand alone or in conjunction with PI controller for buck converter output control. In thispaper design and simulation using MATLAB/SIMULINK of buck converter output voltage using fuzzy logic control ispresented. Simulation results are presented to prove that the steady state deviations of fuzzy PI controller are minimum.
关键词：Buck converter; PI control; fuzzy control; MATLAB-SIMULINK