Title :
Robust control of a Hammerstein model of DC/DC converters
Author :
Alonge, Francesco ; Ippolito, Filippo D. ; Cangemi, Tommaso
Author_Institution :
Palermo Univ., Palermo
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;
Conference_Titel :
Decision and Control, 2007 46th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-1497-0
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2007.4434602
