Adaptive control scheme for interleaved DC/DC power converters

Author

Su, Jen-Ta ; Liu, Chih-Wen ; Liu, De-Min

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2010

fDate

21-24 June 2010

Firstpage

3105

Lastpage

3111

Abstract

In this paper, a novel adaptive control scheme for interleaved DC/DC power converters is proposed to improve the transient response to load current step inputs with high slew rate. The proposed adaptive control scheme is based upon gain scheduling scheme with pole-zero cancellation method to tune the parameters of the proportional-integral-derivative (PID) controller for efficiently improving the output transient response. The proposed adaptive control scheme is verified on a 12 V input with 1.2 V output, 40 A interleaved DC/DC synchronous buck converter and the simulation and experimental results are presented to fully demonstrate the theoretical analysis.

Keywords

DC-DC power convertors; adaptive control; three-term control; PID controller; adaptive control scheme; current 40 A; gain scheduling scheme; interleaved DC-DC power converters; load current step inputs; pole-zero cancellation method; proportional-integral-derivative controller; synchronous buck converter; transient response; voltage 1.2 V; voltage 12 V; Adaptive control; Buck converters; DC-DC power converters; Digital control; Inductors; Pi control; Power electronics; Proportional control; Three-term control; Transient response; adaptive control; dc/dc converter; gain-scheduling control proportional-integral-derivative (PID); pole-zero cancellation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5543899

Filename

5543899