On the stability of the pulsewidth-modulated C´uk converter

Author

Fuad, Y. ; De Koning, W.L. ; van der Woude, J.W.

Author_Institution

Dept. of Math., Surabaya State Univ., Indonesia

Volume

51

Issue

8

fYear

2004

Firstpage

412

Lastpage

420

Abstract

It has been observed that a stabilizing controller for the state-space-average model of a pulsewidth-modulated (PWM) DC-DC converter does not automatically imply a stabilizing controller for the DC-DC converter itself, especially in the case of the C´uk converter. By applying multifrequency averaging as a generalization of the state-space averaging technique, the stationary periodic signals of the C´uk converter can be obtained by solving a set of linear equations. Using these equations, we are able to analyze stability aspects of the open-loop and closed-loop PWM C´uk converter. Simulations are included in open- and closed-loop situations.

Keywords

DC-DC power convertors; PWM power convertors; circuit stability; state-space methods; closed-loop PWM converter; linear equations; multifrequency averaging; observability; open-loop PWM converter; periodic behavior; pulsewidth-modulated Cuk converter; pulsewidth-modulated DC-DC converter; stabilizing controller; state-space-average model; stationary periodic signals; Automatic control; Differential equations; Mathematics; Observability; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Stability analysis; Switches; Switching converters; MF; Multifrequency; PWM; averaging; observability; periodic behavior; pulsewidth modulation; stability; state-space-averaging;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2004.832783

Filename

1323224