Fuzzy Logic Control Based Integrated 2D Buck-Boost Converter

 International Journal of Engineering Trends and Technology (IJETT) © 2015 by IJETT Journal Volume-30 Number-4 Year of Publication : 2015 Authors : Neeraja S, Harikumar R, Dhanya B Nair DOI :  10.14445/22315381/IJETT-V30P235

Citation

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

Abstract
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.

References

[1] K. I. Hwu and T. J. Peng, ?A novel buck-boost converter combining KY and buck converters, IEEE Trans.Ind. Electron., vol.27, no. 5, pp. 2236-2241, May 2012.
[2] B. Axelrod, Y. Berkovich, and A. Ioinovici, ?Hybrid switched capacitor- Cuk/Zeta/Sepic converters in step-up mode, Proc. IEEE Int. Symp. Circuits Syst., pp. 1310–1313, 2005.
[3] K. I. Hwu and Y. T. Yau, ?A novel voltage boosting converter:KY converter, Proc. IEEE Int. Symp.Circuits Syst., pp. 2341-2352, 2007.
[4] K. I. Hwu and Y. T. Yau, ?A KY boost converter IEEE Trans.Ind. Electron, vol. 25, no. 11, pp. 2699-2703, Nov. 2010.
[5] K. I. Hwu and Y. T. Yau, ?Soft switching of KY converter, in Proc. IEEE APEC Conf., 2008, pp. 1477–1482.
[6] K. I. Hwu and Y. T. Yau, ?2nd-Order Derived KY Converters: 1-plus- 2D and 2-plus-D Converters, in Proc. IEEE Conf., 2008, pp. 1490- 1494.
[7] K. I. Hwu and Y. T. Yau, ?Topology Exchange Between KY Converter and Its Derivative, in Proc. IEEE Conf., 2008, pp. 1675-1678.
[8] K. I. Hwu and Y. T. Yau, ?KY converter and its derivatives, IEEE Transactions on Power Electronics, vol. 57, no. 6, 2009, pp. 128-137.
[9] K. I. Hwu and Y. T. Yau, ?A novel voltage-bucking/boosting converter: KY buck-boost converter, IEEE Trans. Ind. Electron. , vol. 8, pp. 2960-2967, Aug. 2008.
[10] K. I. Hwu and Y. T. Yau, ?Two types of KY buck–boost converters, IEEE Trans. Ind. Electron., vol. 56, no. 8, pp. 2970–2980, Aug. 2009.
[11] K. I. Hwu, K. W. Huang and W. C. Tu, ?Step-up converter combining KY and buck-boost converters, IEEE Letters, vol. 47, no. 12, June 2011.
[12] Yang, L.S., Liang, T.J., and Chen, J.F.: ?Transformerless DC-DC converters with high step-up voltage gain‘, IEEE Trans. Ind. Electron., 2009, 56, (8), pp. 3144–3152.
[13] Yurii Shynkarenko and Igor Klyuchnyk, ?Synchronous rectifiers enable high efficiency for buck converter, Proc. IEEE Int. Symp. Circuits Syst., pp. 1690-1695, Nov. 2013.

Keywords
Buck-boost converter, KY converter, sinchronously rectified (SR) buck converter.