An iterative learning algorithm for control of an accelerator based Free Electron Laser

This paper shows the successful application of an iterative learning controller (ILC) to the free electron laser FLASH at DESY, Hamburg, a plant of large international interest for research in physics, chemistry, biology, and engineering. First experimental results demonstrate the applicability of the ILC approach to the low level radio frequency system which controls the electron acceleration.

[1]  Emre Kural,et al.  96 A Survey of Iterative Learning Control Al earning-based method for high-performance tracking control , 2006 .

[2]  Eric Rogers,et al.  Norm-Optimal Iterative Learning Control Applied to Gantry Robots for Automation Applications , 2006, IEEE Transactions on Robotics.

[3]  S. Simrock,et al.  Parameter estimation and tuning of a multivariable RF controller with FPGA technique for the Free Electron Laser FLASH , 2008, 2008 American Control Conference.

[4]  Thomas Kailath,et al.  Linear Systems , 1980 .

[5]  E. Rogers,et al.  Iterative learning control using optimal feedback and feedforward actions , 1996 .

[6]  D. Hwang,et al.  Iterative learning control method for discrete-time dynamic systems , 1991 .

[7]  D. Owens Iterative learning control-convergence using high gain feedback , 1992, [1992] Proceedings of the 31st IEEE Conference on Decision and Control.

[8]  YangQuan Chen,et al.  Iterative Learning Control: A Tutorial and Big Picture View , 2006, Proceedings of the 45th IEEE Conference on Decision and Control.

[9]  M. Liepe,et al.  Dynamic Lorentz force compensation with a fast piezoelectric tuner , 2001, PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268).

[10]  Lennart Ljung,et al.  System Identification: Theory for the User , 1987 .

[11]  A.G. Alleyne,et al.  A survey of iterative learning control , 2006, IEEE Control Systems.

[12]  Suguru Arimoto,et al.  Bettering operation of Robots by learning , 1984, J. Field Robotics.

[13]  T. Schilcher,et al.  Vector sum control of pulsed accelerating fields in Lorentz force detuned superconducting cavities , 1998 .

[14]  Eric Rogers,et al.  P‐type iterative learning control for systems that contain resonance , 2005 .