论文信息 - Novel control technique of single-phase PWM rectifier by compensating output ripple voltage

Novel control technique of single-phase PWM rectifier by compensating output ripple voltage

Novel control technique of single-phase PWM rectifier by compensating output ripple voltage is presented. Output ripple voltage is cancelled before feeding to voltage controller in order to increase system bandwidth while supply current is still nearly sinusoidal and maintains unity power factor. Output ripple voltage estimator is calculated by the information of peak value of supply voltage and current. Peak value estimator of sinusoidal signal is introduced with the help of a simple trigonometric rule. Additionally, feed forward current controller is also presented so as to improve tracking performance of supply current. The proposed scheme is simulated in order to compare with conventional scheme. The simulation results show that the proposed scheme is working effectively both in rectifying mode and regenerating mode

V. Chunkag | S. Somkun | P. Sehakul

[1] José R. Espinoza,et al. PWM regenerative rectifiers: state of the art , 2005, IEEE Transactions on Industrial Electronics.

[2] Hasan Komurcugil,et al. Control strategy for single-phase PWM rectifiers , 1997 .

[3] Werner Leonhard,et al. Control of a Separately Excited DC Machine , 1996 .

[4] S. Pierfederici,et al. DC-link capacitor reduction of a controlled rectifier supplying N inverter-motor drive systems by compensating the load variations , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[5] Boon-Teck Ooi,et al. A single-phase controlled-current PWM rectifier , 1988 .

[6] Bangkok Thailand,et al. POWER BALANCE CONTROL TECHNIQUES APPLIED TO PARALLEL AC TO DC CONVERTERS USING SINGLE-PHASE SEPIC RECTIFIER MODULES , 2004 .

[7] Ying-Yu Tzou,et al. DSP-based fully digital control of a AC/DC converter with a nonlinear digital current mode control , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[8] J. Sebastian,et al. An overview of power factor correction in single-phase off-line power supply systems , 1994, Proceedings of IECON'94 - 20th Annual Conference of IEEE Industrial Electronics.