Fuzzy bang-bang control of a switching voltage regulator

Author

Bizon, N. ; Oproescu, M. ; Raducu, M.

Author_Institution

Pitesti Univ., Pitesti

Volume

2

fYear

2008

fDate

22-25 May 2008

Firstpage

192

Lastpage

197

Abstract

In this paper we propose a fuzzy optimization of the bang-bang control using a fuzzy controller in the feedback loop. The nonlinear characteristic of the fuzzy controller is designed to minimize the output voltage ripple of the buck switching voltage regulator. Feedback signal is output voltage error gain by a value which is nonlinear dependent by output voltage ripple. Comparing this feedback signal with a dc offset level results the PWM command signal. The feasibility and effectiveness of this relative simple control method is shown by simulation. A comparison with the PI control method is included, too.

Keywords

bang-bang control; feedback; fuzzy control; load regulation; nonlinear control systems; pulse width modulation; voltage regulators; PWM command signal; feedback loop; feedback signal; fuzzy bang-bang control; fuzzy optimization; nonlinear characteristic; output voltage ripple; switching voltage regulator; Bang-bang control; Control systems; Fuzzy control; Fuzzy systems; Optimal control; Power engineering and energy; Pulse width modulation; Regulators; Switching converters; Voltage control; bang-bang control; fuzzy controller; power converter; voltage ripple minimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation, Quality and Testing, Robotics, 2008. AQTR 2008. IEEE International Conference on

Conference_Location

Cluj-Napoca

Print_ISBN

978-1-4244-2576-1

Electronic_ISBN

978-1-4244-2577-8

Type

conf

DOI

10.1109/AQTR.2008.4588819

Filename

4588819