Analysis of the Admittance Component for Digitally Controlled Single-Phase Bridgeless PFC Converter

Younghoon Cho; Hyungsoo Mok; Jih-Sheng Lai

Analysis of the Admittance Component for Digitally Controlled Single-Phase Bridgeless PFC Converter

Younghoon Cho

Hyungsoo Mok

Jih-Sheng Lai

Vol. 13, No. 4, pp. 600-608, Jul. 2013

10.6113/JPE.2013.13.4.600

Admittance compensation

Bridgeless PFC converter

Digital current controller

K-factor approach

PDF

Abstract

This paper analyzes the effect of the admittance component for the digitally controlled single-phase bridgeless power factor correction (PFC) converter. To do this, it is shown how the digital delay effects such as the digital pulse-width modulation (DPWM) and the computation delays restrict the bandwidth of the converter. After that, the admittance effect of the entire digital control system is analyzed when the bridgeless PFC converter which has the limited bandwidth is connected to the grid. From this, the waveform distortion of the input current is explained and the compensation method for the admittance component is suggested to improve the quality of the input current. Both the simulations and the experiments are performed to verify the analyses taken in this paper for the 1 kW bridgeless PFC converter prototype.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

Y. Cho, H. Mok, J. Lai, "Analysis of the Admittance Component for Digitally Controlled Single-Phase Bridgeless PFC Converter," Journal of Power Electronics, vol. 13, no. 4, pp. 600-608, 2013. DOI: 10.6113/JPE.2013.13.4.600.

[ACM Style]

Younghoon Cho, Hyungsoo Mok, and Jih-Sheng Lai. 2013. Analysis of the Admittance Component for Digitally Controlled Single-Phase Bridgeless PFC Converter. Journal of Power Electronics, 13, 4, (2013), 600-608. DOI: 10.6113/JPE.2013.13.4.600.