Input Impedance and Current Feedforward Control of Single-Phase Boost PFC Converters

Sungmin Park; Sung-Yeul Park; Ali M. Bazzi

Input Impedance and Current Feedforward Control of Single-Phase Boost PFC Converters

Sungmin Park

Sung-Yeul Park

Ali M. Bazzi

Vol. 15, No. 3, pp. 577-586, May 2015

10.6113/JPE.2015.15.3.577

Ac-dc boost converter

Dual boost PFC converter

Feedforward control

Power factor correction (PFC)

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Abstract

The combination of voltage feedforward and feedback control is a conventional approach for correcting the power factor in single-phase ac-dc boost converters. The feedback duty ratio increases significantly with an increase of the line frequency and input inductance. Therefore, the performance of the conventional approach is highly dependent on the bandwidth of the feedback controller. As a result, the input power quality can be significantly exacerbated due to uncompensated duty ratios if the feedback controller is limited. This paper proposes an input impedance and current feedforward control method to reduce the control portion of the feedback controller. The findings in this paper are 1) the theoretical derivation and analysis of variations of line frequency and input inductance on a power factor correction approach, 2) guaranteed consistent performance in a wide range of conditions, and 3) that a low switching frequency can be utilized by the proposed method. A MATLAB/Simulink model and a 1.2kW dual boost converter are built to demonstrate the effectiveness of the proposed method.

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Cite this article

[IEEE Style]

S. Park, S. Park, A. M. Bazzi, "Input Impedance and Current Feedforward Control of Single-Phase Boost PFC Converters," Journal of Power Electronics, vol. 15, no. 3, pp. 577-586, 2015. DOI: 10.6113/JPE.2015.15.3.577.

[ACM Style]

Sungmin Park, Sung-Yeul Park, and Ali M. Bazzi. 2015. Input Impedance and Current Feedforward Control of Single-Phase Boost PFC Converters. Journal of Power Electronics, 15, 3, (2015), 577-586. DOI: 10.6113/JPE.2015.15.3.577.