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Electrical and Thermal Modeling of Pulsed Magnets Using Finite Element Analysis

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5 Author(s)
Yunxing Song ; Wuhan Pulsed High Magn. Field Center, Wuhan, China ; Tao Peng ; Li, L. ; Yiliang Lv
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A precise and efficient finite element model has been developed to solve the coupling of the magnetic field and heating in pulsed coils energized by a capacitor bank. The magnetic field and the current density distribution in each conductor layer of the coil are simulated, taking into account the eddy current, magneto-resistance and heat conduction. The temperature distribution in the conductor during the discharge is also calculated. Eddy currents and magneto-resistance result in a large temperature gradient across the layers. The calculated pulsed field waveform is in good agreement with experimental results for a large range of pulsed coils; this provides useful insight for optimized coil design.

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Applied Superconductivity, IEEE Transactions on  (Volume:20 ,  Issue: 3 )