Title :
Feedback linearization application for LLRF control system
Author :
Kwon, Sung-il ; Regan, Amy ; Wang, Y.M. ; Rohlev, T.
Author_Institution :
LANSCE Div., Los Alamos Nat. Lab., NM, USA
Abstract :
The Low Energy Demonstration Accelerator (LEDA) being constructed at Los Alamos National Laboratory will serve as the prototype for the low energy section of acceleration production of tritium (APT) accelerator. This paper addresses the problem of the low-level RF (LLRF) control system for LEDA. We propose a control law which is based on exact feedback linearization coupled with gain scheduling which reduces the effect of the deterministic klystron cathode voltage ripple that is due to harmonics of the high voltage power supply and achieves tracking of desired set points. Also, we propose an estimator of the ripple and its time derivative and the estimates based feedback linearization controller
Keywords :
accelerator RF systems; accelerator control systems; feedback; klystrons; linear accelerators; linearisation techniques; APT accelerator; LEDA; LLRF control system; Los Alamos National Laboratory; Low Energy Demonstration Accelerator; T; acceleration tritium production; deterministic klystron cathode voltage ripple; estimates based feedback linearization controller; exact feedback linearization; feedback linearization; gain scheduling; high-voltage power supply; low-energy section; low-level RF control system; Acceleration; Cathodes; Control systems; Klystrons; Laboratories; Linear feedback control systems; Production; Prototypes; Radio frequency; Voltage control;
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4990-3
DOI :
10.1109/ACC.1999.786288
