A control method for DC-DC converter that has an LCL output filter based on new virtual capacitor and resistor concepts

Author

Dahono, Pekik Argo

Author_Institution

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

Volume

1

fYear

2004

fDate

20-25 June 2004

Firstpage

36

Abstract

An LCL output filter is commonly used to minimize the output current ripple of DC-DC converters. A large LCL filter, however, may makes the output current response oscillatory and slow. This paper presents a current control method for DC-DC converter that has an LCL output filter. The proposed control method is based on new virtual capacitor and resistor concepts. Virtual capacitor is used to ensure that the steady-state error of the output current is zero. Virtual resistor is used to damp the oscillations in LCL output filter. Experimental results are included to show the validity of the proposed method.

Keywords

DC-DC power convertors; damping; electric current control; oscillations; passive filters; power capacitors; resistors; DC-DC converter control; LCL filter; current control method; current ripple; oscillation damping; steady-state error; virtual capacitor; virtual resistor; Capacitors; Circuit theory; Current control; DC-DC power converters; Filters; Magnetic separation; Rectifiers; Resistors; Steady-state; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual

ISSN

0275-9306

Print_ISBN

0-7803-8399-0

Type

conf

DOI

10.1109/PESC.2004.1355709

Filename

1355709