High-temperature superconducting motors and generators for power grid applications

Bray, J. W.

doi:10.1016/b978-1-78242-029-3.00010-8

Cited by 3 publications

(2 citation statements)

References 35 publications

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“…are advantageous due to their compact size and high power densities, which makes them very interesting for wind generators, marine propulsion motors, and Hyperloop (in its linear motor), among other [5,[7][8][9][10][11][12][13][14][15]. Other modern applications of such rotating machines are superconducting bearings of flywheel energy storage systems [16][17][18][19], and generator-shaped synchronous condensers [20,21].…”

Section: Introductionmentioning

confidence: 99%

Reducing cross-field demagnetization of superconducting stacks by soldering in pairs

Dadhich¹,

Li²,

Solovyov³

et al. 2022

Supercond. Sci. Technol.

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Superconducting stacks can be used as strong permanent magnets in several applications. One of their uses is to build light and compact superconducting motors for aviation, where these magnets can be used in the rotor, but they can demagnetize quickly in the presence of cross fields. In this article, we propose a new configuration of soldered stacks face-to-face, which can be constructed by relatively simple joining techniques. Based on numerical modeling of cross-field demagnetization of stacks of 2 and 16 tapes, we show that such a sample can withstand around twice as high ripple field amplitudes than isolated stacks. The reason is the increase in the parallel penetration field by around a factor 2. For cross field amplitudes below this value, a soldered stack can retain higher permanent magnetization than isolated stacks. This way of reducing cross-field demagnetization does not decrease the power or torque rating of a motor, compared to other strategies like the increase in the gap between rotor and stator.

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Section: Introductionmentioning

confidence: 99%

Reducing cross-field demagnetization of superconducting stacks by soldering in pairs

Dadhich¹,

Li²,

Solovyov³

et al. 2022

Supercond. Sci. Technol.

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show abstract

“…Unconventional electrical machines consist of superconducting materials. They have impressive characteristics as well their very high magnetic flux density [2], the losslessness of DC, increasing the torque density [3], the weakness of loss with AC [4], and the diamagnetic perfectness when the bulk materials are used.…”

Section: Introductionmentioning

confidence: 99%

Design Development and Analysis of a Partially Superconducting Axial Flux Motor Using YBCO Bulks

et al. 2021

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In this work, authors have designed, constructed and tested a new kind of partially superconducting axial flux machine. This model is based on the magnetic flux concentration principle. The magnetic field creation part consists of the NbTi superconducting solenoid and two YBaCuO plates. A theoretical study is conducted of an extrapolated superconducting inductor for low-temperature superconducting and high-temperature superconducting solenoids. The optimization of the inductor is carried out in order to increase the torque and the power density as well. This improvement is done by changing the shape of the elements which form the superconducting inductor. Finally, a prototype is realized, and tested.

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Computational Investigation on the Crack in Kevlar Based Composite Materials at Cryogenic Temperatures to be used in Superconducting Motors

Handa

Dondapati

Kumar

et al. 2018

Materials Today: Proceedings

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High-temperature superconducting motors and generators for power grid applications

Cited by 3 publications

References 35 publications

Reducing cross-field demagnetization of superconducting stacks by soldering in pairs

Reducing cross-field demagnetization of superconducting stacks by soldering in pairs

Design Development and Analysis of a Partially Superconducting Axial Flux Motor Using YBCO Bulks

Computational Investigation on the Crack in Kevlar Based Composite Materials at Cryogenic Temperatures to be used in Superconducting Motors

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