Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
Print_ISBN :
0-7803-8399-0
DOI :
10.1109/PESC.2004.1355709
