Abstract
A finite element method code based on the critical state model is proposed to solve the ACloss problem in YBCO coated conductors. This numerical method is based on a set ofpartial differential equations (PDEs) in which the magnetic field is used as the statevariable. The AC loss problems have been investigated both in self-field condition andexternal field condition. Two numerical approaches have been introduced: the firstmodel is configured on the cross-section plane of the YBCO tape to simulate aninfinitely long superconducting tape. The second model represents the plane ofthe critical current flowing and is able to simulate the YBCO tape with finitelength where the end effect is accounted. An AC loss measurement has been doneto verify the numerical results and shows a good agreement with the numericalsolution.
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