CERN Accelerating science

CERN Document Server 2,024 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.45 sekúnd. 
1.
Design considerations for electric motors using stacks of high temperature superconducting tape as permanent magnets / Climente-Alarcon, V (Cambridge U.) ; Patel, A (Cambridge U.) ; Baskys, A (Cambridge U. ; CERN) ; Glowacki, B A (Cambridge U.)
High temperature superconducting (HTS) tape can be cut and stacked to form composite bulks capable of generating fields as high as 17.7 T, the highest of any trapped field magnet. This makes them the most powerful permanent magnets accounting for the need to maintain a cryogenic temperature. [...]
2019 - 6 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012182 Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012182
2.
Computation of Superconducting Stacks Magnetization in an Electrical Machine / Climente-Alarcon, Vicente (Cambridge U. (main)) ; Patel, Anup (Cambridge U. (main)) ; Baskys, Algirdas (CERN) ; Glowacki, Bartek A (Cambridge U. (main) ; Inst. Power Eng., Warsaw)
Superconducting technology offers the prospect of sharply increasing power density of rotating electrical machines, especially in the low-speed, high-torque range, with impact in applications such as wind energy and aircraft propulsion. Among the enabling technologies, stacks consisting of piled up layers of high-temperature superconductors may provide a source of magnetic flux density for torque production, without the complexity of superconducting wound rotor poles. [...]
2019 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 29 (2019) 5204506
3.
An experimental assessment of rotor superconducting stack demagnetization in a liquid nitrogen environment / Smara, Anis (Cambridge U.) ; Mineev, Nikolay (Cambridge U.) ; Climente-Alarcon, Vicente (Cambridge U.) ; Patel, Anup (Cambridge U.) ; Baskys, Algirdas (Cambridge U. ; CERN) ; Glowacki, Bartek A (Cambridge U. ; Inst. Power Eng., Warsaw) ; Reis, Thomas (Oswald Elektromotoren GmbH, Miltenberg)
Stacks of high-temperature superconducting tape have proved to trap in laboratory conditions levels of magnetic flux density one order of magnitude above actual state-of-the-art permanent magnets. Their simple manufacturing, high mechanical properties and intrinsic resistance to sudden quench greatly facilitate their utilization in industrial applications, amongst them, as a source of magnetic flux density in the rotor of electrical machines. [...]
2019 - Published in : Supercond. Sci. Technol. 32 (2019) 085009
4.
Cross-field demagnetization of stacks of tapes: 3D modeling and measurements / Kapolka, Milan (Bratislava, Electrotech. Inst.) ; Pardo, Enric (Bratislava, Electrotech. Inst.) ; Grilli, Francesco (KIT, Karlsruhe) ; Baskys, Algirdas (Cambridge U. ; CERN) ; Climente-Alarcon, Vicente (Cambridge U.) ; Dadhich, Anang (Bratislava, Electrotech. Inst.) ; Glowacki, Bartek A. (Cambridge U. ; Inst. Power Eng., Warsaw)
Stacks of superconducting tapes can trap much higher magnetic fields than conventional magnets. This makes them very promising for motors and generators. [...]
arXiv:1909.12129.- 2020-03-13 - 15 p. - Published in : Supercond. Sci. Technol. 33 (2020) 044019 Fulltext: 10.1088_1361-6668_ab5aca - PDF; 1909.12129 - PDF;
5.
Influence of Architecture of Composite Superconducting Tape-Based Stacks on AC Demagnetization for Electric Machines Application / Smara, Anis (Cambridge U.) ; Mineev, Nikolay (Cambridge U.) ; Climante-Alarcon, Vicente (Cambridge U.) ; Tomkow, Lukasz (Cambridge U. ; CERN) ; Reis, Thomas (Unlisted, DE) ; Glowacki, Bartek A (Cambridge U. ; Inst. Power Eng., Warsaw)
Superconducting tape-based stacks used as trapped field magnets in electrical machines are subject to an AC-demagnetizing field. This study provides experimental measurements of the magnetization and demagnetization of several stack architectures for electrical machine applications. [...]
2020 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 30 (2020) 5206506
6.
Application of Hot Press Bending for Shaping a Stack of HTS Tapes Operating as a Trapped Flux Magnet / Tomkow, Lukasz (Cambridge U. ; CERN) ; Smara, Anis (Cambridge U.) ; Glowacki, Bartek A (Cambridge U. ; Inst. Power Eng., Warsaw)
Trapped-flux magnets made of stacks of superconducting tapes are an interesting and important alternative to the application of rare-earth permanent magnets and trapping flux in bulk superconductors. Many applications, such as electric motors, can require the complex shapes of magnetic elements to combat issues such as demagnetization during the operation. [...]
2020 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 30 (2020) 1-5
7.
Magnetic flux in stacks of superconducting tapes of different architecture / Harca, I M (Cambridge U. ; Bucharest, IFIN-HH) ; Machaj, K (Cambridge U. ; Wroclaw U.) ; Tomkow, L (Cambridge U. ; CERN) ; Glowacki, B A (Cambridge U. ; Inst. Power Eng., Warsaw)
Stacks of superconducting tapes nowadays have multiple applications and many new modifications are currently considered to enhance their beneficial properties. We have studied the field trapping in stacks of commercial superconducting tapes with different configurations. [...]
2020 - 6 p. - Published in : Supercond. Sci. Technol. 33 (2020) 115004
8.
Experimental system for testing a superconducting motor at temperatures close to 15 K / Tomkow, L (CERN ; Cambridge U.) ; Harca, I M (Cambridge U. ; Bucharest, IFIN-HH) ; Machaj, K (Cambridge U. ; Warsaw U. of Tech.) ; Smara, A (Cambridge U. ; Warsaw U. of Tech.) ; Reis, T (Oswald Elektromotoren GmbH, Miltenberg) ; Glowacki, B A (Cambridge U. ; Inst. Power Eng., Warsaw)
Integrating superconducting elements in an electric motor can greatly increase its power density. By doing so, lighter and more powerful machines can be produced for applications such as aviation, wind turbines and marine propulsion. [...]
2020 - Published in : Cryogenics 112 (2020) 103206
9.
HTS current lead optimization / Tkachenko, L M ; Akimov, I ; Bogdanov, I ; Gusakov, D ; Harchenko, A ; Kozub, S ; Myznikov, K ; Olyunin, A ; Rakov, D ; Shikov, A et al.
600 A current leads based on Bi-2223 HTS tapes for LHC SC magnets are optimised. Three current leads were manufactured for development of current leads and HTS tape design. [...]
2002
In : 8th European Particle Accelerator Conference, Paris, France, 3 - 7 Jun 2002, pp.2454-6
10.
Test Measurements of a 20 ms-1 Carbon Wire Beam Scanner / De Freitas, J (CERN) ; Dehning, B (CERN) ; Emery, J (CERN) ; Herranz Alvarez, J F (CERN) ; Koujili, M (CERN) ; Ramos, D (CERN) ; Sapinski, M (CERN) ; Ait-Amira, Y (Franche Comte U.) ; Djerdir, A (IUT, Belfort)
This paper pre­sents the de­sign of the ac­tu­a­tor for the fast and high ac­cu­ra­cy Wire Scan­ner sys­tem. The ac­tu­a­tor con­sists of a ro­tary brushless syn­chronous motor with the per­ma­nent mag­net rotor in­stalled in­side the vac­u­um cham­ber and the sta­tor in­stalled out­side. [...]
CERN-BE-2011-029.- Geneva : CERN, 2011 - 3 p. - Published in : Conf. Proc.: C11-05-16.4 (2011) , pp. TUPD64 Fulltext: PDF; Published version from JACoW: PDF;
In : 10th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, Hamburg, Germany, 16 - 18 May 2011, pp.452

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