Losses in HTS Tapes due to AC External Magnetic Field and AC Transport Current
نویسندگان
چکیده
The E-J power law as electric characterization of the HTS material in Finite Element computations has shown good agreement with measurements of field-dependent critical current density and losses due to transport current. We use this technique to investigate the loss caused by AC transport current in self-field and in applied AC magnetic field in both rectangular monocore and multicore tapes, where the current is generated by means of a voltage source. The current density is first kept constant and then varied with the local flux density. Furthermore, the simulations show that the transfer current decreases due to the screening currents induced by the external field.
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