Abstract
Abstract Multiple studies have reported information about the magnetization by pulses applied in YBCOsuperconducting pellets. “Electrical machines” is one of the areas where it is possible to take advantage of using superconducting magnetized pellets by the high magnetic trapped field. However, it is well known the strong dependence of the maximum value of remanence with temperature. The relaxation experienced by the HTS, once the pulse magnetization has finished, and the heat generated in the superconductor by the effect of the “supercritical” currents generated during the flux penetration, make the maximum trapped field lower than expected considering a critical state model. In this work we present simulations performed, with a commercial finite element program, about the resulting magnetization in the HTS superconducting pellets, taking into account the influence of temperature.
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