The influence of cooling on the magnetic properties of the second generation HTS tapes

Anischenko, I. V.; Покровский, С. В.; Rudnev, I. A.

doi:10.1088/1742-6596/945/1/012015

“…24) [47]. The work [47] presents the calculation of a magnet of captured flux based on the HTS-belt stacks with the record-breaking captured magnetic field over 17 T. The publications include many works presenting the associated electrodynamic and thermal calculations of HTSbelt stacks subject to their layered structure [47,79,152,153]. These works deal with 2G HTS-belt stacks in perpendicular magnetic field [79,152] or superconductive rings as elements of a levitation system [153,154].…”

Section: Some Of the Results Of Calculation Models Applicationmentioning

confidence: 99%

“…The work [47] presents the calculation of a magnet of captured flux based on the HTS-belt stacks with the record-breaking captured magnetic field over 17 T. The publications include many works presenting the associated electrodynamic and thermal calculations of HTSbelt stacks subject to their layered structure [47,79,152,153]. These works deal with 2G HTS-belt stacks in perpendicular magnetic field [79,152] or superconductive rings as elements of a levitation system [153,154]. For HTS-belt stacks, calculations of current distributions and captured magnetic fields were performed, as well as calculations of levitation forces for belt stacks with the height from 5 to 700 belts in a stack within a wide range of temperatures [54] (Fig.…”

Section: Some Of the Results Of Calculation Models Applicationmentioning

confidence: 99%

Physical principles of development of magneto-levitation systems based on the second generation high temperature superconducting composites (Review)

I.A.

¹

,

Anischenko

²

2022

Technical Physics

0

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An overview of experimental and theoretical studies of the characteristics of maglev systems using high-temperature superconductors (HTSC) is presented. Materials used in maglev technologies, namely bulk superconductors and HTSC tape composites, are considered. The main experimental data obtained on both bulk and tape superconductors assembled in stacks of various configurations are demonstrated. The factors influencing the magneto-force characteristics are analyzed: geometric parameters, the influence of external alternating magnetic fields, temperatures, relaxation phenomena. A significant part of the review is devoted to the description of various methods for calculating maglev systems, including those based on stacks of HTSC composites. The features of thermal processes in maglev systems with cryocooler and nitrogen cooling are considered. General recommendations for the creation of optimal maglev systems based on tape HTSC composites are given. Keywords: magnetic levitation, high-temperature superconductors, strip composites, levitation force, lateral force, methods for calculating magnetic force characteristics.

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“…В литературе широко представлены работы, в которых приводятся связанный электродинамический и тепловой расчеты стопок ВТСП-лент с учетом их слоистой структуры [47,79,152,153]. В данных работах в качестве элемента левитационной системы рассматриваются стопки 2G ВТСП-лент в перпендикулярном магнитном поле [79,152] или сверхпроводящие кольца [153,154].…”

Section: некоторые результаты применения расчетных моделейunclassified

“…В литературе широко представлены работы, в которых приводятся связанный электродинамический и тепловой расчеты стопок ВТСП-лент с учетом их слоистой структуры [47,79,152,153]. В данных работах в качестве элемента левитационной системы рассматриваются стопки 2G ВТСП-лент в перпендикулярном магнитном поле [79,152] или сверхпроводящие кольца [153,154]. Для стопок ВТСП-лент проведены расчеты распределений токов и захваченных магнитных полей, а также расчеты силы левитации для стопок лент высотой от 5 до 700 лент в стопке в широком интервале температур [54] при намагничивании.…”

Section: некоторые результаты применения расчетных моделейunclassified

Физические Принципы Создания Магнитолевитационных Систем На Основе Высокотемпературных Сверхпроводящих Композитов Второго Поколения (Обзор)

Руднев¹,

Анищенко²

2021

Журнал Технической Физики

1

0

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An overview of experimental and theoretical studies of the characteristics of maglev systems using high-temperature superconductors (HTSC) is presented. Materials used in maglev technologies, namely bulk superconductors and HTSC tape composites, are considered. The main experimental data obtained on both bulk and tape superconductors assembled in stacks of various configurations are demonstrated. The factors influencing the magneto-force characteristics are analyzed: geometric parameters, the influence of external alternating magnetic fields, temperatures, relaxation phenomena. A significant part of the review is devoted to the description of various methods for calculating maglev systems, including those based on stacks of HTSC composites. The features of thermal processes in maglev systems with cryocooler and nitrogen cooling are considered. General recommendations for the creation of optimal maglev systems based on tape HTSC composites are given.

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“…where E is the electric field, B is the magnetic induction, H is the magnetic field, μ 0 is the relative permeability of free space, relative permeability of air and superconducting elements μ r =1. The specifications of the parameters, which must be entered into the PDE form to turn into expression (1), is given in [20].…”

Section: Hts Composites Computationmentioning

confidence: 99%

Modeling of magnetization and levitation force of HTS tapes in magnetic fields of complex configurations

Irina

¹

,

Покровский

²

,

Rudnev

³

et al. 2019

Supercond. Sci. Technol.

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In many levitation systems superconductors are used in combination with permanent magnets. In this paper we considered three types of magnetic assemblies that are most often used: with magnets oriented in one direction, oppositely oriented magnets and the Halbach array. Based on the H-formalism, we performed modeling of a magnetic field and levitation force in a system consisting of the high temperature superconductor (HTS) tape stack and the assembly of permanent magnets. It was shown that if a spatial distribution of a gradient magnetic field changes in height it is necessary to take into account the magnetic history of the superconductor. The proposed computational model includes a combination of scalar and vector potentials, as well as modeling the real movement of an HTS tape stack in a levitation system. The simulation results were verified by corresponding experiments. The proposed approach is universal for modeling levitation systems of complex configurations.

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The influence of cooling on the magnetic properties of the second generation HTS tapes

Cited by 4 publications

References 2 publications

Physical principles of development of magneto-levitation systems based on the second generation high temperature superconducting composites (Review)

Physical principles of development of magneto-levitation systems based on the second generation high temperature superconducting composites (Review)

Физические Принципы Создания Магнитолевитационных Систем На Основе Высокотемпературных Сверхпроводящих Композитов Второго Поколения (Обзор)

Modeling of magnetization and levitation force of HTS tapes in magnetic fields of complex configurations

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