Title :
Fuzzy bang-bang control of a switching voltage regulator
Author :
Bizon, N. ; Oproescu, M. ; Raducu, M.
Author_Institution :
Pitesti Univ., Pitesti
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;
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
DOI :
10.1109/AQTR.2008.4588819
