Robust control of a Hammerstein model of DC/DC converters

Author

Alonge, Francesco ; Ippolito, Filippo D. ; Cangemi, Tommaso

Author_Institution

Palermo Univ., Palermo

fYear

2007

fDate

12-14 Dec. 2007

Firstpage

1204

Lastpage

1209

Abstract

This paper deals with the robust control of a Hammerstein mathematical model of DC/DC converters, consisting of the nonlinear static characteristics of the converter followed by one of a few number of linear time- invariant models which describe the converter in the useful working range. One of these models is assumed as the nominal model of the system and the remaining models are used for describing the model uncertainty. Nominal behaviour is assured using H-2 optimal control method, Robust stability and behaviour are assured by imposing H-infin specifications. The closed loop control system consisting of the converter Hammerstein model and the robust controller is analyzed by means of simulation experiments.

Keywords

DC-DC power convertors; closed loop systems; linear systems; nonlinear control systems; optimal control; robust control; DC/DC converters; H-2 optimal control; Hammerstein mathematical model; closed loop control system; linear time-invariant models; nonlinear static characteristics; robust control; robust stability; Control system synthesis; DC-DC power converters; Mathematical model; Optimal control; Power system modeling; Pulse width modulation converters; Robust control; Robust stability; Sliding mode control; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2007 46th IEEE Conference on

Conference_Location

New Orleans, LA

ISSN

0191-2216

Print_ISBN

978-1-4244-1497-0

Electronic_ISBN

0191-2216

Type

conf

DOI

10.1109/CDC.2007.4434602

Filename

4434602