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


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9997290
Closed Loop Control of Bridgeless Cuk Converter Using Fuzzy Logic Controller for PFC Applications
Abstract:
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.
Digital Object Identifier (DOI):

References:

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[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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