Title :
Uncertain system modeling of SNS RF control system
Author :
Kwon, Sung-il ; Regan, Amy ; Wang, Yi-Ming ; Lynch, Michael
Author_Institution :
Los Alamos Nat. Lab., NM, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper addresses the modeling problem of the linear accelerator RF system for SNS. The cascade of the klystron and the cavity is modeled as a nominal system. In the real world, high voltage power supply ripple, Lorentz force detuning, microphonics, cavity RF parameter perturbations, distortions in RF components, and loop time delay imperfection exist inevitably, which must be analyzed. The analysis is based on the accurate modeling of the disturbances and uncertainties. In this paper, modern control theory is applied for modeling the disturbances, uncertainties, and for analyzing the closed loop system robust performance
Keywords :
H∞ control; accelerator cavities; accelerator control systems; closed loop systems; klystrons; linear accelerators; neutron sources; proton accelerators; superconducting cavity resonators; two-term control; uncertain systems; Lorentz force detuning; RF control system; SNS; cavity; closed loop system; control theory; high voltage power supply ripple; klystron; linear accelerator; microphonics; Control system synthesis; Klystrons; Linear accelerators; Lorentz covariance; Power supplies; Power system modeling; Radio frequency; Uncertain systems; Uncertainty; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.986643
