A novel single-phase AC/DC converter for power factor correction

Author

Lin, Bor-Ren ; Huang, Shih-Jung ; Hung, Tsung-liang

Author_Institution

Dept. of Electr. Eng., Nat. Yunlin Univ. of Sci. & Technol., Touliu, Taiwan

Volume

2

fYear

2002

fDate

11-14 Dec. 2002

Firstpage

998

Abstract

A novel single-phase AC/DC converter with two pulsewidth modulation (PWM) schemes is proposed to draw a sinusoidal line current with nearly unity power factor, achieve balanced neutral point voltage and regulate the do bus voltage. With the aid of neutral point clamped scheme, a three-level voltage pattern will be generated on the AC side of the proposed rectifier. To track the line current command derived from a voltage controller and a phase-locked loop circuit, a hysteresis current control scheme is used in the inner loop control. A capacitor voltage compensator is employed to achieve the balanced neutral point voltage. Simulation results are performed to investigate the effectiveness of the proposed control scheme.

Keywords

AC-DC power convertors; PWM power convertors; electric current control; phase locked loops; power factor correction; voltage regulators; DC bus voltage regulation; PLL circuit; PWM schemes; balanced neutral point voltage; capacitor voltage compensator; hysteresis current control scheme; inner loop control; neutral point clamped scheme; phase-locked loop circuit; power factor; power factor correction; pulsewidth modulation schemes; single-phase AC/DC converter; sinusoidal line current; three-level voltage pattern; voltage controller; AC generators; DC-DC power converters; Phase locked loops; Power factor correction; Pulse width modulation; Pulse width modulation converters; Reactive power; Rectifiers; Tracking loops; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 2002. IEEE ICIT '02. 2002 IEEE International Conference on

Print_ISBN

0-7803-7657-9

Type

conf

DOI

10.1109/ICIT.2002.1189307

Filename

1189307