Fuzzy logic based robust pole-placement controller for DC-DC buck converter

Author

Abbas, Ghulam ; Farooq, Umar ; Asad, Muhammad Usman

Author_Institution

Lyon Inst. of Nanotechnol. (INL), Univ. of Lyon, Lyon, France

fYear

2011

fDate

23-24 July 2011

Firstpage

1

Lastpage

6

Abstract

This paper describes the fuzzy logic based robust pole-placement controller for the buck converter working in Continuous Conduction Mode (CCM). The converter operates at a switching frequency of 500 KHz. Pole-placement controller does not show good robustness to the load variations and the change in supply and reference voltages. In order to improve the static and dynamic properties, pole-placement controller supported by decomposed PID fuzzy algorithm is investigated. The performance of both the controllers, pole-placement and optimal pole-placement, is compared and conclusions are drawn. It will be shown that optimal control shows better dynamic performance. MATLAB/SIMULINK based simulation results validate the design.

Keywords

DC-DC power convertors; control system synthesis; fuzzy control; optimal control; pole assignment; robust control; three-term control; DC-DC buck converter; MATLAB-SIMULINK based simulation; continuous conduction mode; decomposed PID fuzzy algorithm; frequency 500 kHz; fuzzy logic based robust pole-placement controller; optimal control; reference voltages; Control systems; Equations; Fuzzy logic; Mathematical model; Simulation; Steady-state; Voltage control; Continuous Conduction Mode; PID; fuzzy logic; pole-placement;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technologies (ICICT), 2011 International Conference on

Conference_Location

Karachi

Print_ISBN

978-1-4577-1553-2

Type

conf

DOI

10.1109/ICICT.2011.5983560

Filename

5983560