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AC Loss Study in REBCO HTS Tape and Four-Tape Stack Carrying AC Current With DC Offset
IEEE transactions on applied superconductivityIn rapid-cycling synchrotrons (RCSs), superferric magnets wound with high-temperature superconductors are energized by ac current with a dc offset. However, the presence of the dc offset may increase the ac loss in the magnets.
Yue Wu +4 more
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Over-Current Testing of HTS Tapes
IEEE Transactions on Appiled Superconductivity, 2005High-temperature superconducting (HTS) transmission cables are subjected to short-circuit fault currents 10 to 30 times the normal operating current and lasting up to 15 cycles. These over-currents will drive the HTS conductor normal and generate heat during the fault.
J.W. Lue, M.J. Gouge, R.C. Duckworth
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HTS Tapes Selection for Superconducting Current Limiters
IEEE Transactions on Applied Superconductivity, 2017The superconducting fault current limiters (SFCLs) are highly effective solutions to reduce fault current in electric power system. The process of quenching may occur in all superconducting devices, but in fault current limiters this process must be fully controlled.
Michal Majka +2 more
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Relaxation of Levitation Force of a Stack of HTS Tapes
IEEE Transactions on Applied Superconductivity, 2016Nowadays, magnetic bearings are used to design motors, generators, separating platforms, and flywheel energy storage systems. High-temperature superconducting (HTS) magnetic bearing construction is based on YBa 2 Cu 3 O 7-x (YBCO) bulks through its ability to capture and hold significant magnetic field for a long time.
Dmitry Abin +3 more
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Measurement of AC current distributions in HTS tapes
Physica C: Superconductivity, 2008It is important to evaluate the characteristics of the current distributions in the HTS tapes and conductors in order to realize HTS power devices. In this study, we have developed a simple measurement method to evaluate the current distributions in HTS tapes.
S. Kawabata +4 more
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The Levitation Force Characteristics of Stacked HTS Tapes
2020 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), 2020High temperature superconducting (HTS) tapes can be stacked into a block structure and be used in HTS magnetic levitation systems. This paper proposes a simulation method based on H-formulation to study the levitation force characteristics of the stacked HTS tapes on the permanent magnet guideways (PMG) in Comsol Multiphysics.
Jianhui Liang +3 more
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Reduction of Magnetization in Windings Composed of HTS Tapes
IEEE Transactions on Applied Superconductivity, 2012Methods to reduce the magnetization in windings composed of high temperature superconductor (HTS) tapes are presented on the basis of the abnormal transverse-field effect. The toroidal arrangement as well as the coaxial arrangement of additional coils wound with non-magnetic wires such as copper wires is effective to uniformize the distribution of ...
K. Kajikawa, K. Funaki
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Design of HTS Tape Characteristics Measurement System
IEEE Transactions on Appiled Superconductivity, 2004High temperature superconductor (HTS) tapes are now commercially available for practical applications to apply various purposes. However HTS tapes show different electrical and mechanical characteristics, according to the manufacturers who are trying to apply various fabrication processes and treatments. From the viewpoint of an application, it is very
J.-H. Joo +4 more
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Comparison of Overcurrent Responses of 2G HTS Tapes
IEEE Transactions on Applied Superconductivity, 2016<p>In this paper, the comparison of transient responses of second-generation (2G) higherature superconducting (HTS) tapes under alternating overcurrent was presented. The authors performed the series of measurements of the SF4050 and SCS4050 HTS tapes produced by Superpower Co.
Czerwinski, Dariusz +4 more
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