Transient Simulation and Analysis for Saturated Core High Temperature Superconducting Fault Current Limiter

In this paper, the transient performance of a magnetic core fault current limiter (FCL) saturated by high temperature superconducting (HTS) DC bias winding is investigated by using 3-dimensional (3D) field-circuit coupled simulation. A high voltage is induced on the DC HTS winding during the fault current state. The induced voltage is computed and some possible methods to reduce it are studied. The numerical computations are verified by the experiment results on an FCL prototype