Fuzzy Logic Control Based Integrated 2D Buck-Boost Converter
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2015 by IJETT Journal|
|Year of Publication : 2015|
|Authors : Neeraja S, Harikumar R, Dhanya B Nair
|DOI : 10.14445/22315381/IJETT-V30P235|
Neeraja S, Harikumar R, Dhanya B Nair"Fuzzy Logic Control Based Integrated 2D Buck-Boost Converter", International Journal of Engineering Trends and Technology (IJETT), V30(4),180-187 December 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
An integrated 2D buck–boost converter is developed by combining the KY converter and the synchronously rectified (SR) buck converter. The converter has positive output voltage different from negative output voltage of the traditional buck-boost converter. The converter operates in continuous conduction mode inherently and it possesses the non-pulsating output current, thereby not only decreasing the current stress on the output capacitor but also reducing the output voltage ripple. Both the KY converter and the SR buck converter uses the same power switches, thereby causing the required circuit to be compact and the corresponding cost to be down. During the magnetization period, the input voltage of the KY converter comes from the input voltage source, whereas during the demagnetization period, the input voltage of the KY converter comes from the output voltage of the SR buck converter. Simulation of the converter is carried out using MATLABSIMULINK software. Fuzzy logic control is used to control the integrated 2D buck-boost converter. Simulation and experimental results are presented to validate the proposed converter topology and control scheme.
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Buck-boost converter, KY converter, sinchronously rectified (SR) buck converter.