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Luning Hao (University of Cambridge)18/11/2021, 10:00Poster
To minimise the (alternate current) AC loss, multi-filament high-temperature superconducting (HTS) costed conductors (CCs) have been investigated for years. Many methods for striating the HTS CCs are developed and proven effective, such as laser cut and mechanical cut. This paper presents a novel approach to create the filamentary structure. Instead of cutting the HTS tape after manufacture,...
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Dr Shuo Li (Northeastern University)18/11/2021, 10:00Poster
When the HTS tapes in the quasi-isotropic cable are insulated in middle but soldered together at terminals, it is call partially coupled quasi-isotropic cable. There are resistances at soldered parts which would form closed current loops. When the cable is carrying DC current and subjected into AC magnetic field at the same time, it would induce coupling current and change the current density...
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844. Evaluation of magnetic properties of REBCO wire by modified SST for cryogenics (THU-PO3-608-03)Kazuki Kume (Okayama University)18/11/2021, 10:00Poster
Recently, a Wireless Power Transmission (WPT) system has been attracting attention for automobiles and electric railways. However, the power transmission efficiency in the conventional WPT system composed of copper coils is not high enough due to large resistance. Therefore, we have investigated the effectiveness of applying REBCO coils to WPT system. Since the increase AC loss of the REBCO...
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Yuki Omanyuda (Kyushu University)18/11/2021, 10:00Poster
AC applications of REBa2Cu3Oy (REBCO) superconducting tapes require large current capacity and low AC loss properties. We have already proposed transposed parallel conductors in our previous study on the development of superconducting power transformers and rotating machines. The parallel conductor with the optimal transposition does not induce the additional AC loss. However, if the...
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Mr Jun-ya Tamaru (九州大学大学院)18/11/2021, 10:00Poster
One of the properties in superconductor is perfect diamagnetism called as Meissner effect. Among superconductors, YBa2Cu3O7-δ (YBCO) polycrystals has high critical temperature (Tc) over 90 K and high critical current density (Jc) of the order of 104 A/cm2 at 77 K in self-magnetic field［1］, so it is expected as a material for shielding magnetic field under liquid nitrogen cooling. Concerning to...
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Yinshun Wang18/11/2021, 10:00Poster
HTS cable conductor are promising with high current density and without Joule loss characterized by its intrinsic zero resistance. Therefore，HTS cable conductor with large current carrying capacity are expected to have widespread application in feeder lines large scale magnet. At present, the conventional design of HTS cable conductor, general several of 10 KA, are designed with goal of...
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Prof. Igor Rudnev (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))18/11/2021, 10:00Poster
One of the practical applications of the second generation HTS tapes (or CC – coated conductors) lays in the area of development of superconducting magnetic energy storages (SMES). In particular, HTS SMES will be applied for charging pulse mode magnets used in particle accelerators. The important particularity of such magnets is the rapidly changing operating current and magnetic field at low...
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Shintetsu Kanazawa (Muroran Institute of Technology)18/11/2021, 10:00Poster
Recently, we proposed a REBCO split wire having multi-core structure. The split wire is fabricated by separating the REBCO layer using the commercial REBCO-coated conductor. The fabrication method is electrical separating by bending stress (ESBS) and electrical separating by pressure concentration method (ESPC) [1]. In the measurement of the screening current induced magnetic field, that was...
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Yueming Sun (Robinson Research Institute, Victoria University of Wellington)18/11/2021, 10:00Poster
Commercial HTS coated conductors exhibit asymmetric Ic (B,θ) characteristics, where θ is defined as the angle between the applied magnetic field and normal component of the superconductor plane. Previous works reported influence of Ic (B, θ) characteristics on dynamic resistance in a coated conductor and AC loss of coil windings wound with coated conductors. However, the influence of...
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馨丹 张18/11/2021, 10:00Poster
Like quasi-isotropic conductor has the characteristics of high current-carrying, high engineering current density, and flexibility, which makes it uniquely advantageous when used in industrial scenarios such as nuclear fusion, SMEs, and MRI. In spite of that, the operating conditions of the conductor will be complicated by the screening effect caused by the alternating magnetic field....
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