Multivariable current control for electrically and magnetically coupled superconducting magnets

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Description

Superconducting magnet systems under construction and projected for the future contain magnets that are magnetically coupled and electrically connected with shared power supplies. A change in one power supply voltage affects all of the magnet currents. A current controller for these systems must be designed as a multivariable system. The paper describes a method, based on decoupling control, for the rational design of these systems. Dynamic decoupling is achieved by cross-feedback of the measured currents. A network of gains at the input decouples the system statically and eliminates the steady-state error. Errors are then due to component variations. The method ... continued below

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Pages: 7

Creation Information

Owen, E.W. & Shimer, D.W. February 8, 1985.

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Description

Superconducting magnet systems under construction and projected for the future contain magnets that are magnetically coupled and electrically connected with shared power supplies. A change in one power supply voltage affects all of the magnet currents. A current controller for these systems must be designed as a multivariable system. The paper describes a method, based on decoupling control, for the rational design of these systems. Dynamic decoupling is achieved by cross-feedback of the measured currents. A network of gains at the input decouples the system statically and eliminates the steady-state error. Errors are then due to component variations. The method has been applied to the magnet system of the MFTF-B, at the Lawrence Livermore National Laboratory.

Physical Description

Pages: 7

Notes

NTIS, PC A02/MF A01; 1.

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  • 6. topical meeting on the technology of fusion energy, San Francisco, CA, USA, 3 Mar 1985

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  • Other: DE85012941
  • Report No.: UCRL-92092
  • Report No.: CONF-850310-113
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5641562
  • Archival Resource Key: ark:/67531/metadc1092645

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • February 8, 1985

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 27, 2018, 1:47 p.m.

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Owen, E.W. & Shimer, D.W. Multivariable current control for electrically and magnetically coupled superconducting magnets, article, February 8, 1985; [Livermore,] California. (digital.library.unt.edu/ark:/67531/metadc1092645/: accessed July 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.