文章基本信息

标题：IMPLEMENTATION OF FUZZY LOGIC CONTROLLER FOR BUCK-BOOST CONVERTER COMBINING KY AND SYNCHRONOUS BUCK CONVERTER FOR BATTERY OPERATED PORTABLE DEVICES
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作者：R.ANAND ; I.GNANAMBAL ; N.POORNEMA 等
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：67
期号：1
出版社：Journal of Theoretical and Applied
摘要：KY converter and buck converter, combined into a positive buck�boost converter is a recently proposed system by K. I. Hwuet. Al. This converter produces low output voltage ripple than the conventional DC-DC negative voltage boosting converters. In this manuscript a PI controller and Fuzzy controller is modelled to control the output voltage ripple to reduce the peak overshoot and settling time of the converter. The results of proposed PI and Fuzzy controlled negative output KY boost converter with the digital simulation by Matlab/Simulink shows reduction in voltage ripple for about 5milli Volts for PI controlled system to 2milli Volts by the proposed Fuzzy controlled combined buck and KY converter. Also the peak overshoot of the system and its settling time are reduced to a greater extent with the proposed system. The performance of the converter with traditional Proportional-Integral-Controller (PIC) and Fuzzy controller is compared at different working conditions in the MATLAB/Simulink. Experimental model using field programmable gate array (FPGA)were also done and the simulation results were verified.
关键词：Fuzzy Logic Controller (FCL); Proportional Integral Controller(PIC); Modified KY Buck Boost Converter; Output voltage ripple; DC-DC Converter