Trapped Field and Levitation Performance of a YBCO Superconductor Magnetized in Different External Magnetic Fields

Jiang, Jing; Zhao, Yong; Li, Yuhang; Zhao, Lifeng; Yong, Zhang

doi:10.1007/s10948-018-4912-4

Cited by 7 publications

(1 citation statement)

References 32 publications

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“…Superconducting magnets have the great advantage of offering higher magnetic field intensity compared with traditional PMs; utilizing a superconducting magnet as magnetic field source can obtain much greater levitation force than PMs. Under a high background magnetic field, some new properties are obtained which could not be observed in PMs' magnetic fields [10][11][12]. To promote more profound understanding of the interaction mechanisms between HTSs and high external magnetic fields, a levitation force measurement system composed of a 6T NbTi conduction-cooled superconducting magnet has been built in our laboratory.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Analysis and Testing of Conduction-Cooled Superconducting Magnet for Levitation Force Measurement Application

et al. 2023

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High-temperature superconductors have great potential for various engineering applications such as a flywheel energy storage system. The levitation force of bulk YBCO superconductors can be drastically increased by increasing the strength of the external field. Therefore, a 6T conduction-cooled superconducting magnet has been developed for levitation force measurement application. Firstly, to protect the magnet from mechanical damage, reliable stress analysis inside the coil is paramount before the magnet is built and tested. Therefore, a 1/4 two-dimensional (2D) axisymmetric model of the magnet was established, and the mechanical stress in the whole process of winding, cooling down and energizing of the magnet was calculated. Then, the charging, discharging, and preliminary levitation force performance tests were performed to validate the operating stability of the magnet. According to the simulation results, the peak stresses of all coil models are within the allowable value and the winding maintains excellent mechanical stability in the superconducting magnet. The test results show that the superconducting magnet can be charged to its desired current of 150 A without quenching and maintain stable operation during the charging and discharging process. What is more, the superconducting magnet can meet the requirements for the levitation force measurement of both low magnetic field and high magnetic field.

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Section: Introductionmentioning

confidence: 99%