A control method to damp oscillation in the input LC filter

Author

Dahono, Pakik Argo

Author_Institution

Dept. of Electr. Eng., Bandung Inst. of Technol., Indonesia

Volume

4

fYear

2002

fDate

2002

Firstpage

1630

Lastpage

1635

Abstract

A control method to damp oscillation in the input LC filter of AC-DC PWM converters is proposed in this paper. The oscillation in the input LC filter of AC-DC PWM converters is damped by using a virtual resistor that can be connected either in series to or parallel with filter inductor or capacitor. Because no real resistor is used, the efficiency of the converters is not sacrificed. The required additional sensor and implementation of the virtual resistor in the control algorithm is strongly influenced by how the virtual resistor is connected to the LC filter. We need an additional current sensor if the virtual resistor is connected in series to the filter inductor or capacitor and an additional voltage sensor if connected in parallel. Simulated and experimental results are included to verify the proposed method

Keywords

AC-DC power convertors; PWM power convertors; capacitors; damping; electric current control; filters; inductors; oscillations; voltage control; AC-DC PWM converters; control algorithm; control method; current sensor; filter capacitor; filter inductor; input LC filter AC-DC PWM converters; oscillation damping; virtual resistance; virtual resistor; voltage sensor; Capacitive sensors; Capacitors; Error correction; Filters; Inductors; Pulse width modulation converters; Resistors; Signal processing; Switching converters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual

Conference_Location

Cairns, Qld.

Print_ISBN

0-7803-7262-X

Type

conf

DOI

10.1109/PSEC.2002.1023044

Filename

1023044