Dynamic loss and magnetization loss of HTS coated conductors, stacks, and coils for high-speed synchronous machines
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This article is published in Superconductor Science and Technology.The article was published on 2020-08-01 and is currently open access. It has received 37 citations till now. The article focuses on the topics: Skin effect & Shielding effect.read more
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Alternating Current Loss of Superconductors Applied to Superconducting Electrical Machines
TL;DR: This article systematically reviews the qualitative and quantitative analysis methods of AC loss as well as its reduction techniques in superconductors applied to electrical machines for the first time to help deepen the understanding of AC Loss and deliver a helpful guideline for the future development of superconducting machines and applied superconductivity.
Journal ArticleDOI
Artificial intelligence methods for applied superconductivity: material, design, manufacturing, testing, operation, and condition monitoring
Mohammad Yazdani-Asrami,Alireza Sadeghi,Wenjuan Song,Ana Madureira,João Murta-Pina,Antonio Morandi,Michael Parizh +6 more
TL;DR: In this paper , the authors present a review of the use of Artificial Intelligence (AI) techniques in the field of superconductivity and its applications. And the challenges and future trends on how to integrate AI techniques with superconductors towards commercialization are discussed.
Journal ArticleDOI
Total loss measurement and simulation in a REBCO coated conductor carrying DC current in perpendicular AC magnetic field at various temperatures
Yueming Sun,Yueming Sun,Jin Fang,Gennady Sidorov,Quan Li,Rodney A. Badcock,Nicholas J. Long,Zhenan Jiang +7 more
TL;DR: In this paper, the authors measured the total loss in a 4 mm wide REBCO coated conductor under perpendicular AC magnetic fields up to 105 mT at 77 K, 70 K, and 65 K, with reduced DC current level, i (I dc/I c0), from 0.025 to 0.98, where I dc is the transport DC current value and I c0 is the self-field critical current of the coated conductor at each temperature.
Journal ArticleDOI
Numerical Study on Dynamic Resistance of an HTS Switch Made of Series-Connected YBCO Stacks
Jintao Hu,Jun Ma,Jiabin Yang,Mengyuan Tian,Adil Shah,Ismail Patel,Haigening Wei,Luning Hao,Yavuz Ozturk,Boyang Shen,Tim Coombs +10 more
TL;DR: In this paper, a series-connected YBCO stack was used to obtain insights into the characteristics of dynamic resistance and power loss, including their relationship with the amplitude and the frequency of the AC magnetic field.
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High Temperature Superconducting Flux Pumps for Contactless Energization
TL;DR: In this article , the authors summarized the most up-to-date advances of this emerging technology, clarified the working mechanisms and commonly adopted modeling approaches, presented objective analyses of the applicability of various high temperature superconducting flux pumps, specified the primary challenges for implementing HTS flux pumps and proposed useful suggestions to improve this wireless excitation technology.
References
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Magnetic properties and AC-losses of superconductors with power law current-voltage characteristics
TL;DR: In this paper, a theory of magnetic properties and AC-losses in superconductors with smooth current-voltage characteristics is proposed, which is applied to supercondors with a power law characteristic, E ≈ jα.
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High power density superconducting rotating machines—development status and technology roadmap
Kiruba S. Haran,Swarn S. Kalsi,Tabea Arndt,Haran Karmaker,Rod Badcock,Bob B. Buckley,Timothy J. Haugan,Mitsuru Izumi,David Loder,James William Bray,Philippe Masson,Ernst Wolfgang Stautner +11 more
TL;DR: In this article, the authors present a technology roadmap for superconducting machines with a goal to reach a Technology Readiness Level of 6+ with systems demonstrated in a relevant environment.
Journal ArticleDOI
Calculation of alternating current losses in stacks and coils made of second generation high temperature superconducting tapes for large scale applications
Victor M. R. Zermeno,Asger Bech Abrahamsen,Nenad Mijatovic,Bogi Bech Jensen,Mads Peter Sørensen +4 more
TL;DR: In this article, a homogenization method to model a stack of second generation High Temperature Superconducting tapes under AC applied transport current or magnetic field has been obtained, where the idea is to find an anisotropic bulk equivalent for the stack such that the geometrical layout of the internal alternating structures of insulating, metallic, superconducting, and substrate layers is washed out while keeping the overall electromagnetic behavior of the original stack.
Journal ArticleDOI
Calculation of AC losses in stacks and coils made of second generation high temperature superconducting tapes for large scale applications
Victor M. R. Zermeno,Asger Bech Abrahamsen,Nenad Mijatovic,Bogi Bech Jensen,Mads P. Soerensen +4 more
TL;DR: In this paper, a homogenization method to model a stack of second generation (2G) HTS tapes under AC applied transport current or magnetic field has been obtained, where the idea is to find an anisotropic bulk equivalent for the stack, such that the geometrical layout of the internal alternating structures of insulating, metallic, superconducting and substrate layers is "washed" out while keeping the overall electromagnetic behavior of the original stack.
Journal ArticleDOI
Technological, economic and environmental prospects of all-electric aircraft
Andreas Schäfer,Steven R. H. Barrett,Khan Doyme,Lynnette Dray,Albert Reuben. Gnadt,Rod H. Self,Aidan O’Sullivan,Athanasios P. Synodinos,Antonio J. Torija +8 more
TL;DR: Schafer et al. as mentioned in this paper presented a first-order assessment of the energy, economic and environmental implications of battery-electric aircraft, and showed that batteries with significantly higher specific energy and lower cost, coupled with further reductions of costs and CO2 intensity of electricity, are necessary for exploiting the full range of economic, environmental and environmental benefits provided by allelectric aircraft.