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平均电流模式控制器，用于无桥 PFC SEPIC 转换器，采用二阶模型降阶，工作在连续导通模式下。

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

机构信息

Faculty of Electrical Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, Johor, Malaysia.

Department of Electronic Engineering, Faculty of Engineering, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.

出版信息

PLoS One. 2023 Oct 17;18(10):e0291873. doi: 10.1371/journal.pone.0291873. eCollection 2023.

DOI:10.1371/journal.pone.0291873
PMID:37847692
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10581483/
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.

摘要

本文提出了一种基于平均电流模式控制器（ACMC）的单相无桥功率因数校正（PFC）电路，该电路采用单端初级电感转换器（SEPIC），通过二阶模型降阶实现。所提出的控制器的优势在于，通过二阶模型降阶，在功率高达 350 W 的情况下实现高效率的 PFC。详细解释了在连续导通模式（CCM）下工作的转换器上的 ACMC 的设计和实现。ACMC 迫使输入电流在不同功率水平下跟随正弦电流参考，并维持高功率因数（PF）。该控制器是基于电路的理论分析操作设计的。为了验证，进行了 MATLAB/Simulink 仿真，并通过 110-220 Vrms 输入、100 Vdc/350 W 输出、20 kHz 开关频率的原型实验测试台进行了验证。结果证明，所提出的控制器策略实现了高 PF、高效率，并与仿真结果相符。

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