Average current mode controller for bridgeless PFC SEPIC converter with second-order model reduction operated in continuous conduction mode

Nor Akmal Rai, Mohd Junaidi Abdul Aziz, Mohd Rodhi Sahid, Abdul Rashid Husain, Waqas Anjum and Wen Yao Low

PLOS ONE, 2023, vol. 18, issue 10, 1-26

Abstract: This paper proposes an average current mode controller (ACMC) for a single-phase bridgeless power factor correction (PFC) circuit using a single ended primary inductor converter (SEPIC) via second-order model reduction. The superiority of the proposed controller is PFC accomplished at power up to 350 W with high efficiency via the second-order model reduction. The design and implementation of ACMC on the converter operated with continuous conduction mode (CCM) is explained in detail. ACMC forces input current to follow sinusoidal current reference at different power levels and sustain high power factor (PF). The proposed controller is designed based on the theoretical analysis operation of the circuit. For verification, MATLAB/Simulink simulations are carried out and validation through an experiment test rig for 110—220 Vrms input, 100 Vdc/ 350 W output prototype at 20 kHz switching frequency. It is proven that the proposed controller strategy accomplishes high PF, high efficiency and conformity with the simulation.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0291873

DOI: 10.1371/journal.pone.0291873

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