Performance analysis of a 380V three-phase saturated iron-core superconducting fault current limiter using Jiles-Atherton hysteresis model

A saturated iron-core superconducting fault current limiter (SISFCL) is capable of limiting fault currents by virtue of its ability to change the magnetic state of its core material between saturation and unsaturation. On account of this, the incorporation of the effects of magnetic hysteresis is essential for providing greater accuracy in the analysis. In this paper, a mathematical model of a three-phase SISFCL is developed utilizing Jiles-Atherton´s hysteresis model. The mathematical model is simulated in MATLAB software and its performance is analyzed for three different types of faults, specifically, three-phase to ground, single-line to ground and double-line to ground faults. A comparison is also made regarding the effect of a three-phase to ground fault on the circuit current with and without the FCL.