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3-D Finite Element Analysis of Electromagnetic Characteristics of Composite HTS Conductor

With the development of high-temperature superconducting (HTS) magnetic energy storage (SMES) devices, the superconducting electrical equipment becomes lighter and lighter and power density becomes higher and higher. It is an inevitable trend to make SMES magnets with composite HTS conductors. The critical current(Ic) of the composite conductors is affected by the magnetic field and the angle between magnetic field and composite conductor. At the same time, the magnetic field distribution also affects the AC loss in the composite conductor. Therefore, the electromagnetic analysis of the superconducting composite conductor is very significant. By establishing a three-dimensional (3D) finite element simulation model in ANSYS, we can draw the conclusion that the magnetic flux density at the edge of the composite conductor is larger than that of at the middle. Compared with a single superconducting tape, magnetic flux density distribution of composite conductors is more uniform.