Parameterized hysteresis model for high-temperature superconductors

High-temperature superconductors (HTS) exhibit hysteresis, which is the mai n cause for losses in the subcritical domain. This behavior is well predict ed by Bean's critical-state model, which is a subset of the classical Preis ach model. We present a parameterized Preisach model that describes the hys teresis of HTS specimens in self-field, where the parameters are identified from electrical lock-in (loss) measurements. That means the model can be u sed independent of geometry, number of filaments, and other physical measur es as long as Bean's model applies. An advantage of the model is that it ca n predict outputs (flux, voltage) and losses for arbitrary input currents o nce the HTS has been characterized from measurements. We have further deriv ed exact models for the hysteretic losses in strip and elliptic geometry st rips, where the energy losses were calculated by Norris.