Results 171 to 180 of about 163,001 (214)

Finite-element recipes for HTS-coated conductors and HTS tape topologies

Superconductor Science and Technology, 2023
Abstract Different electromagnetic formulations were proposed and implemented in finite element (FE) software to model high-temperature superconductors-coated conductors (HTS-CCs) and HTS tape topologies. However, their modelling can be notably demanding in computational resources, particularly computation time.
D J Gameiro Carvalho, F Ferreira da Silva, J F P Fernandes, P J da Costa Branco   +3 more
openaire   +1 more source

Quench protection system for an HTS coil that uses Cu tape co-wound with an HTS tape

Superconductor Science and Technology, 2019
Abstract A quench protection system for a high-temperature superconducting (HTS) coil using Cu tape co-wound with an HTS tape was studied by numerical analysis using a thermal model of a coil winding pack. In normal operation, the voltage across the resistive zone V
H Toriyama, A Nomoto, T Ichikawa, T Takao, K Nakamura, O Tsukamoto, M Furuse   +6 more
openaire   +1 more source

Twisting characterization of 2G HTS tapes

2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), 2015
In recent years, commercialization of the second generation high temperature superconducting (2G HTS) tape has been realized and widely used in development of various electronic device applications. This paper emphases on the experimental research of twisting properties of 2G HTS tape at 77 K, self-field.
Jia Wei Li, Yin Shun Wang, Takyo Hasegawa   +2 more
openaire   +1 more source

A Superconducting Joint for 2G HTS Tapes

Technical Physics Letters, 2019
An approach of the epitaxial jointing of the GdBa2Cu3O7 – δ-based tapes using the YBa2Cu3O7 – δ layer is proposed. The structural and electrical characteristics of the formed joint have been investigated. Using the scanning transmission electron microscopy, the cross section of the joined region has been studied, partial melting of the YBa2Cu3O7 – δ ...
I. V. Kulikov, M. Y. Chernykh, T. S. Krylova, A. V. Ovcharov, I. A. Chernykh, M. L. Zanaveskin   +5 more
openaire   +1 more source

Critical current properties in HTS tapes

Physica C: Superconductivity, 2003
Abstract The author’s recent studies on the critical current properties in Bi-2223 multifilamentary tapes as well as YBCO coated IBAD tapes have been reviewed. Extended electric field vs. current density ( E – J ) characteristics were studied over wide range of temperature, T , magnetic field, B , and angle, θ . Based on the analysis of statistic
T. Kiss, M. Inoue, T. Kuga, M. Ishimaru, S. Egashira, S. Irie, T. Ohta, K. Imamura, M. Yasunaga, M. Takeo, T. Matsushita, Y. Iijima, K. Kakimoto, T. Saitoh, S. Awaji, K. Watanabe, Y. Shiohara   +16 more
openaire   +1 more source

Over-Current Testing of HTS Tapes

IEEE Transactions on Appiled Superconductivity, 2005
High-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
openaire   +1 more source

Investigation of HTS Tape Stacks for Levitation Applications

IEEE Transactions on Applied Superconductivity, 2016
Currently, high-temperature superconductor (HTS) bearings are most commonly designed with bulk REBa 2 Cu 3 O 7-x (REBCO), but these HTS bulks have several drawbacks, such as brittleness and the complexity of sample preparation. An alternative for levitation systems is to use stacks of REBCO coated conductors (HTS tapes).
Maxim Osipov, Dmitry Abin, Sergei Pokrovskii, Igor Rudnev   +3 more
openaire   +1 more source

HTS Tapes Selection for Superconducting Current Limiters

IEEE Transactions on Applied Superconductivity, 2017
The 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, Janusz Kozak, Slawomir Kozak   +2 more
openaire   +1 more source

Relaxation of Levitation Force of a Stack of HTS Tapes

IEEE Transactions on Applied Superconductivity, 2016
Nowadays, 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, Maxim Osipov, Sergei Pokrovskii, Igor Rudnev   +3 more
openaire   +1 more source

Measurement of AC current distributions in HTS tapes

Physica C: Superconductivity, 2008
It 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, A. Shimotamari, N. Tashiro, F. Sumiyoshi, Y. Shiohara   +4 more
openaire   +1 more source