| Title |
Digital Current Control Scheme for Boost Single-Phase PFC ConverterBased on Virtual d-q Transformation |
| Authors |
Kwang-Woon Lee ; Hack-Jun Kim |
| DOI |
10.6113/TKPE.2020.25.1.54 |
| Keywords |
Boost single-phase PFC converter; Current control; Virtual d-q transformation |
| Abstract |
A digital current control scheme using virtual d-q transformation for a boost single-phase power factor correction (PFC) converter is proposed. The use of virtual d-q transformation in single-phase power converters is known to improve current control performance. However, the conventional virtual d-q transformation-based digital current control scheme cannot be directly applied to the boost single-phase PFC converter because the current and average voltage waveforms of the inductor used in the converter are not sinusoidal. To cope with this problem, this study proposes a virtual sinusoidal signal generation method that converts the current and average voltage waveform of the inductor into a sinusoidal waveform synchronized with the grid. Simulation and experimental results are provided to show that the virtual d-q transformation-based digital current control is successfully applied to the boost single-phase PFC converter with the aid of the proposed virtual sinusoidal signal generation method. |