Parametrised Preisach Modelling of Hysteresis in High Temperature Superconductors

摘要: We present a parametrised Preisach-type model that describes the hysteresis exhibited by high temperature superconductors (HTSC); is main cause for losses in subcritical domain. The model, combination with electrical measurements, independent of geometry, number filaments and other physical measures, identified novel method uses lock-in (loss) measurement technique, which greatly enhances signal to noise ratio. Identification results from measurements on Bi-2223 multi-filamentary tapes are presented. have further derived exact models hysteretic strip elliptic geometry strips, where energy were calculated Norris. paper contains analysis Preisach Model, its suggested parametrisation.