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BiBTeX citation export for WEPLM11: Closed Loop Modeling of the APS-U Orbit Feedback System

  author       = {P.S. Kallakuri and A.R. Brill and J. Carwardine and N. Sereno},
  title        = {{Closed Loop Modeling of the APS-U Orbit Feedback System}},
  booktitle    = {Proc. NAPAC'19},
  pages        = {683--686},
  paper        = {WEPLM11},
  language     = {english},
  keywords     = {controls, feedback, power-supply, vacuum, simulation},
  venue        = {Lansing, MI, USA},
  series       = {North American Particle Accelerator Conference},
  number       = {4},
  publisher    = {JACoW Publishing, Geneva, Switzerland},
  month        = {10},
  year         = {2019},
  issn         = {2673-7000},
  isbn         = {978-3-95450-223-3},
  doi          = {10.18429/JACoW-NAPAC2019-WEPLM11},
  url          = {http://jacow.org/napac2019/papers/weplm11.pdf},
  note         = {https://doi.org/10.18429/JACoW-NAPAC2019-WEPLM11},
  abstract     = {Orbit stabilization to 10% of the expected small beam sizes for Advanced Photon Source Upgrade (APS-U) requires pushing the state of the art in fast orbit feedback (FOFB) control, both in the spatial domain and in dynamical performance. We are building a Matlab/Simulink fast orbit feedback system model to guide decisions about APS-U fast orbit feedback system implementation and to provide a test bench for optimal-control methodologies and orbit correction algorithms applicable to the APS-U. A transfer function model was built from open-loop frequency-response and step-response measurements of the present APS and subsequently validated against closed-loop measurements. A corresponding model for APS-U fast orbit feedback was generated by substituting measured responses of APS-U prototype corrector magnets and power supplies into this same model. Stabilizing PID gains are designed using model, and simulated dynamic performance of the new controller is validated through experiments.},