Pulsed Energy Storage System Design

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A superconductive energy storage magnet which is connected to the three phase power system could be designed, constructed, and placed in operation at Fermilab which would essentially eliminate the large repetitive power pulses now required from the power system. In addition to the power pulses, voltage flicker is also caused due to the reactive power pulsation. Specifically, a one megawatt hour superconductive energy storage magnet and a 2.00 megawatt thyristorized converter can achieve nullification of these power pulses up to 400 GEV synchrotron operation. Above 400 GEV, operation should be possible up to 500 GEV with appreciable less power pulsing ... continued below

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124 pages

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Biallis, G.; Cassel, R.L.; Fowler, W.; Livdahl, P.V.; Mills, F.E.; Palmer, M.L. et al. July 1, 1974.

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Description

A superconductive energy storage magnet which is connected to the three phase power system could be designed, constructed, and placed in operation at Fermilab which would essentially eliminate the large repetitive power pulses now required from the power system. In addition to the power pulses, voltage flicker is also caused due to the reactive power pulsation. Specifically, a one megawatt hour superconductive energy storage magnet and a 2.00 megawatt thyristorized converter can achieve nullification of these power pulses up to 400 GEV synchrotron operation. Above 400 GEV, operation should be possible up to 500 GEV with appreciable less power pulsing requirements from the system than are now considered permissible. Carried to successful completion, this project would serve to advance applied superconductivity to a highly significant degree. The effect would be of world wide importance to both high energy physics and to the electric power industry. The preliminary magnet design is a 1 MWh dipole composed of cryogenically stable composite conductors connected in parallel with aluminum shield windings. The shield windings carry impressed pulsed currents while eliminating pulsed currents from the dc superconductive windings. Without pulsed currents or pulsed magnetic fields there are no ac losses in standard helium. The major radius of the dipole is 8.85 m; the minor radius is 0.69m; there are 188 turns at 80,000 A and each turn is 4 conductors wound in parallel. The 20,000 A TiNb-copper composite conductor is l0x 1.12 cm in cross section similar to but larger than the FNAL bubble chamber conductor. The shield is 188 turns (equal number of turns is a shielding condition) of hollow aluminum conductor cooled via circulated cold helium gas at 40K. The turns are spaced around the minor circumference according to a cosine distribution which produces zero internal field. In use the shield loss converted to room temperature power is about .8MW when 0.1 MWh is used from a 1 MWh storage dipole. The 0.1 MWh is sufficient to provide complete load leveling for 400 GEV pulses, and operation at 500 GEV with lower power transients than are presently experienced.

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124 pages

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  • Report No.: FERMILAB-TM-2514-AD
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/1021481 | External Link
  • Office of Scientific & Technical Information Report Number: 1021481
  • Archival Resource Key: ark:/67531/metadc840531

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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.

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Creation Date

  • July 1, 1974

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Aug. 30, 2016, 3:10 p.m.

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Biallis, G.; Cassel, R.L.; Fowler, W.; Livdahl, P.V.; Mills, F.E.; Palmer, M.L. et al. Pulsed Energy Storage System Design, report, July 1, 1974; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc840531/: accessed December 10, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.