Multirate modeling and control design for switched-mode power converters

Author

Khayatian, Alireza ; Taylor, David G.

Author_Institution

Dept. of Electr. Eng., Shiraz Univ., Iran

Volume

39

Issue

9

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

1848

Lastpage

1852

Abstract

A class of pulse-width modulated (PWM) systems that includes many switched-mode power converters is considered. A new multirate low-frequency sampling PWM scheme is introduced that not only provides the possibility for new types of operation, but also unifies the switching logic corresponding to established PWM schemes. An exact nonlinear discrete-time model is used to develop multirate nonlinear controllers and observers based on map-inversion concepts. This nonlinear design methodology is widely applicable, requiring only that the continuous-time small-signal average model be controllable and observable

Keywords

control system synthesis; controllability; feedback; nonlinear control systems; observability; power convertors; pulse width modulation; state estimation; switched mode power supplies; continuous-time small-signal average model; control design; exact nonlinear discrete-time model; map-inversion concepts; multirate low-frequency sampling PWM scheme; multirate modeling; multirate nonlinear controllers; observers; pulse-width modulated systems; switched-mode power converters; switching logic; Control design; Design methodology; Feedback; Logic; Power system modeling; Pulse width modulation; Pulse width modulation converters; Sampling methods; Switches; Switching converters;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/9.317110

Filename

317110