Title :
Comparison of the Kharitonov method with others for the robust stability analysis of a PWM buck converter
Author :
Nazirul, A.S.M. ; Shaheen, I. ; Pujara, L.R. ; Kazimierczuk, M.K.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
An investigation of the robust stability of a pulse-width modulated buck DC-DC converter is carried out, considering the uncertainty in the components used for the converter circuit. An alternative method which is less conservative than the Kharitonov Theorem (1978) approach is used to find robust stability bounds and to show that the compensated system of the device remains stable when the capacitor and the equivalent averaged resistance vary over large intervals around their nominal values.
Keywords :
DC-DC power convertors; PWM power convertors; compensation; robust control; uncertain systems; voltage control; Kharitonov Theorem; PWM buck converter; capacitor; compensated system; converter circuit; mapping theorem; power converters; power electronics; pulse-width modulated buck DC-DC converter; resistance; robust stability analysis; uncertainty; Buck converters; Circuits; DC-DC power converters; Inductors; Pulse width modulation; Pulse width modulation converters; Robust stability; Stability analysis; Switches; Voltage;
Conference_Titel :
Control Applications, 1997., Proceedings of the 1997 IEEE International Conference on
Conference_Location :
Hartford, CT, USA
Print_ISBN :
0-7803-3876-6
DOI :
10.1109/CCA.1997.627755
