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Title:
METHODS AND APPARATUS FOR ORDERLY RUN-DOWN OF SUPERCONDUCTING MAGNETS
Document Type and Number:
WIPO Patent Application WO/2012/152484
Kind Code:
A3
Abstract:
A method for maintaining operation of ancillary equipment associated with a superconducting magnet (10) carrying a DC current, comprising the steps of: directing the DC current through a DC to AC converter (40); ramping down the magnitude of the current flowing through the superconducting magnet at a controlled rate, thereby generating a controlled voltage across the controlled impedance; powering the ancillary equipment by the controlled voltage and an associated current; and controlling the ramping rate in order to maintain a required controlled voltage.

Inventors:
BLAKES, Hugh (Rectory Cottage, Rectory LaneLongworth, Oxfordshire OX13 5DZ, GB)
JOHNSTONE, Adam Paul (13 North Street, Thame, Oxfordshire OX9 3BH, GB)
Application Number:
EP2012/054737
Publication Date:
June 20, 2013
Filing Date:
March 16, 2012
Export Citation:
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Assignee:
SIEMENS PLC (Faraday House, Sir William Siemens Square Frimley,Camberley, Surrey GU16 8QD, GB)
BLAKES, Hugh (Rectory Cottage, Rectory LaneLongworth, Oxfordshire OX13 5DZ, GB)
JOHNSTONE, Adam Paul (13 North Street, Thame, Oxfordshire OX9 3BH, GB)
International Classes:
H02J15/00; H01F6/00; H01F6/02; H01F6/04
Domestic Patent References:
WO1999062164A1
WO2001039356A2
Foreign References:
EP0521424A1
JP2005065400A
US6560969B1
Attorney, Agent or Firm:
FRENCH, Clive Harry et al. (Siemens Aktiengesellschaft, Postfach 22 16 34, Munich, 80506, DE)
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