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

fYear

1997

fDate

5-7 Oct. 1997

Firstpage

779

Lastpage

784

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 1997., Proceedings of the 1997 IEEE International Conference on

Conference_Location

Hartford, CT, USA

Print_ISBN

0-7803-3876-6

Type

conf

DOI

10.1109/CCA.1997.627755

Filename

627755