Flux Trapping Implementation in High-Temperature Superconducting Magnets for Superconducting Electric Machines

Adrian-Laurentiu Barbu; Matteo Iacchetti; Alexander C. Smith; Paul Tuohy; Alexandru-Vlad Rusu

doi:10.1109/TASC.2024.3380591

Flux Trapping Implementation in High-Temperature Superconducting Magnets for Superconducting Electric Machines

Adrian-Laurentiu Barbu, Matteo Iacchetti, Alexander C. Smith, Paul Tuohy, Alexandru-Vlad Rusu

Research output: Contribution to journal › Article › peer-review

Abstract

This paper investigates a novel flux-trapping technique in Type II High-Temperature Superconducting (HTS) rotor coils. This method can be implemented in superconducting electrical machines to take advantage of in situ magnetisation by using the stator coils to energise the rotor HTS coils. This study investigates the feasibility of energizing a rotor HTS coil using a stator winding. The methodology includes modelling and test-rig development and aims to improve practical HTS system implementation for aerospace propulsion applications. Experimental results show that the design is feasible by observing a slow decay of the magnetic field in the air-gap after the external current source has been turned off. The rate of decay of the magnetic field in the airgap is dependent on the resistance of the HTS joint.

Original language	English
Article number	5202705
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	34
Issue number	5
DOIs	https://doi.org/10.1109/TASC.2024.3380591
Publication status	Published - 22 Mar 2024

Keywords

Flux trapping
high-temperature Superconductor
superconducting Electric machines

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10.1109/TASC.2024.3380591

Cite this

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title = "Flux Trapping Implementation in High-Temperature Superconducting Magnets for Superconducting Electric Machines",

abstract = "This paper investigates a novel flux-trapping technique in Type II High-Temperature Superconducting (HTS) rotor coils. This method can be implemented in superconducting electrical machines to take advantage of in situ magnetisation by using the stator coils to energise the rotor HTS coils. This study investigates the feasibility of energizing a rotor HTS coil using a stator winding. The methodology includes modelling and test-rig development and aims to improve practical HTS system implementation for aerospace propulsion applications. Experimental results show that the design is feasible by observing a slow decay of the magnetic field in the air-gap after the external current source has been turned off. The rate of decay of the magnetic field in the airgap is dependent on the resistance of the HTS joint.",

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AU - Barbu, Adrian-Laurentiu

AU - Iacchetti, Matteo

AU - Smith, Alexander C.

AU - Tuohy, Paul

AU - Rusu, Alexandru-Vlad

PY - 2024/3/22

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N2 - This paper investigates a novel flux-trapping technique in Type II High-Temperature Superconducting (HTS) rotor coils. This method can be implemented in superconducting electrical machines to take advantage of in situ magnetisation by using the stator coils to energise the rotor HTS coils. This study investigates the feasibility of energizing a rotor HTS coil using a stator winding. The methodology includes modelling and test-rig development and aims to improve practical HTS system implementation for aerospace propulsion applications. Experimental results show that the design is feasible by observing a slow decay of the magnetic field in the air-gap after the external current source has been turned off. The rate of decay of the magnetic field in the airgap is dependent on the resistance of the HTS joint.

AB - This paper investigates a novel flux-trapping technique in Type II High-Temperature Superconducting (HTS) rotor coils. This method can be implemented in superconducting electrical machines to take advantage of in situ magnetisation by using the stator coils to energise the rotor HTS coils. This study investigates the feasibility of energizing a rotor HTS coil using a stator winding. The methodology includes modelling and test-rig development and aims to improve practical HTS system implementation for aerospace propulsion applications. Experimental results show that the design is feasible by observing a slow decay of the magnetic field in the air-gap after the external current source has been turned off. The rate of decay of the magnetic field in the airgap is dependent on the resistance of the HTS joint.

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JF - IEEE Transactions on Applied Superconductivity

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Flux Trapping Implementation in High-Temperature Superconducting Magnets for Superconducting Electric Machines

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