Parameter Analysis Method of Cold Insulated Superconducting Cable Based on Field-Circuit Coupling

Unlike conventional cables, the zero resistance and strong coupling between conductive layer and shielding layer of superconducting cables make the characteristics of superconducting cables have new characteristics. Therefore, it is of great significance to study the analysis method of superconducting cables' line parameters. This paper presents a simulation analysis method of three-phase cold-insulated superconducting cable line parameters based on the field-circuit coupling model. The magnetic field model calculates the shield induced electric field, the circuit model calculates the time-domain current in the superconducting cable loop, and the coupling induced electric field and time-domain current calculates the positive and zero-sequence line parameters of the superconducting cable line.