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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29526

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Closed Loop Control of Bridgeless Cuk Converter Using Fuzzy Logic Controller for PFC Applications
This paper is based on the bridgeless single-phase Ac–Dc Power Factor Correction (PFC) converters with Fuzzy Logic Controller. High frequency isolated Cuk converters are used as a modular dc-dc converter in Discontinuous Conduction Mode (DCM) of operation of Power Factor Correction. The aim of this paper is to simplify the program complexity of the controller by reducing the number of fuzzy sets of the Membership Functions (MFs) and to improve the efficiency and to eliminate the power quality problems. The output of Fuzzy controller is compared with High frequency triangular wave to generate PWM gating signals of Cuk converter. The proposed topologies are designed to work in Discontinuous Conduction Mode (DCM) to achieve a unity power factor and low total harmonic distortion of the input current. The Fuzzy Logic Controller gives additional advantages such as accurate result, uncertainty and imprecision and automatic control circuitry. Performance comparisons between the proposed and conventional controllers and circuits are performed based on circuit simulations.
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[1] Ahmad J. Sabzali, Esam H. Ismail, Mustafa A. Al. Saffar, and Abbas A. Fardoun, (March/Apr. 2011) "New Bridgeless DCM Sepic and Cuk PFC Rectifiers With Low Conduction and Switching Losses” IEEE Trans. Ind. Electron., vol.47, no.2, pp. 1090–110.
[2] Bin Su and Zhengyu Lu, (Jun.2010) "An interleaved totem-pole boost bridgeless rectifier with reduced reverse-recovery problems for Power Factor Correction,” IEEE Trans. Power Electron., vol. 25, no. 6, pp. 1406–1415.
[3] Domingos Savio Lyrio Simonetti, Javier Sebastian, and Javier Uceda, (Oct. 1997) "The Discontinuous Conduction Mode Sepic and Cuk Power Factor Preregulators: Analysis and Design” IEEE Trans. Ind. Electron., vol.44, no.5, pp. 630-637.
[4] Esam H. Ismail, (April. 2009) "Bridgeless SEPIC Rectifier With Unity Power Factor and Reduced Conduction Losses” IEEE Trans. Ind. Electron., vol.56, no.4, pp. 1147-1157.
[5] Gerry Moschopoulos and Kain. P, (Jun. 2004) "A novel single-phase soft-switched rectifier with unity power factor and minimal component count,” IEEE Trans. Ind. Electron., vol. 51, no. 3, pp. 566–575.
[6] Laszlo Huber, Liu Gang, and Milan M. jovanovic, (Jan.2010) "Design-Oriented Analysis and Performance Evaluation of Buck PFC Front End” IEEE Trans. Ind. Electron., vol.25, no.1, pp. 85-94.
[7] Marcos Alonso. J, Marco A.Dalla Costa, and Carlos Ordiz, (March. 2008), "Integrated Buck-Flyback Converter as a High-Power-Factor Off-Line Power Supply” IEEE Trans. Ind. Electron., vol.55, no.3, pp. 1090-1100.
[8] Milivoje Brkovic and Cuk. S, "Input current shaper using Cuk converter,” (1992) in Proc. Int. Tele-communication. Energy Conf., pp. 532–539.
[9] Mohammad Mahdavi, and Farzanehfard. H, (Sep. 2011) "Bridgeless SEPIC PFC rectifier with reduced components and conduction losses,” IEEE Trans. Ind. Electron., vol. 58, no. 9, pp. 4153–4160.
[10] sahid. M. R., Yatim. A. H. M., Taufik. (2010) "A New AC-DC Converter Using Bridgeless SEPIC” conference.
[11] Yong-SeongRoh, Y.-J. Moon, J.-C. Gong, and C. Yoo, (Feb. 2011) "Active Power Factor Correction (PFC) circuit with resistor-free zero-current detection,” IEEE Trans. Power Electron., vol. 26, no. 2, pp. 630–637.
[12] Yungtaek Jang, Milan M. Jovanovic, (Feb.2011) "Bridgeless High Power-Factor Buck Converter” IEEE Trans. Power Electron., vol. 26, no. 2, pp. 602–611.
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