Title :
Control design methodology for periodic systems with variable sampling period application to resonant converters
Author :
Godoy, E. ; Boichot, J. ; Aymard, N.
Author_Institution :
Service Autom., Supelec, Gif-sur-Yvette, France
fDate :
Aug. 31 1999-Sept. 3 1999
Abstract :
This paper describes the modeling and the control design with a variable sampling period of a non linear process for the power supply of an X-ray tube used in medical imaging. The chosen approach to handle the nonlinearities of this system is a control with switching gains obtained from a set of linearized models provided by a small signals identification in the neighbourhood of many operating points.
Keywords :
biomedical imaging; control system synthesis; linear systems; medical control systems; nonlinear control systems; periodic control; resonant power convertors; sampling methods; time-varying systems; X-ray tube; control design methodology; linearized models; medical imaging; nonlinear process; operating points; periodic systems; power supply; resonant converters; small signals identification; switching gains; variable sampling period application; Aerospace electronics; Biomedical imaging; Delay effects; Electron tubes; Steady-state; Video recording; Voltage control; Switched gains; resonant converter; variable sampling period;
Conference_Titel :
Control Conference (ECC), 1999 European
Conference_Location :
Karlsruhe
Print_ISBN :
978-3-9524173-5-5
