| Title |
A 360Hz DC Ripple-Voltage Suppression Scheme in Three-Phase Soft-Switched Buck Converter |
| Authors |
최주엽(Choi, Ju-Yeop) ; 고종진(Ko, Jong-Jin) ; 송중호(Song, Joong-Ho) ; 최익(Choy, Ick) ; 정승기(Jeong, Seung-Gi) |
| Keywords |
Pulse Frequency Modulation ; Duty Ratio Modulation ; Harmonic Injection ; High Power Factor ; Low Frequency Voltage Ripple |
| Abstract |
A technique to suppress the low frequency ripple voltage of the DC output in three phase buck diode converter is presented in this paper. The proposed pulse frequency modulation methods and duty ratio modulation methods are employed to regulate the output voltage of the buck diode converter and guarantee zero-current-switching(ZCS) of the switch over the wide load range. The proposed control methods used in this paper provide generally good performance such as low THD of the input line current and unity power factor. In addition, control methods can be effectively used to suppress the low frequency ripple voltage appeared in the dc output voltage. The harmonic injection technique illustrates its validity and effectiveness through the simulations and experiments. |