Performance analysis of saturated iron core superconducting fault current limiter using Jiles–Atherton hysteresis model

• Published in: Journal of magnetism and magnetic materials 2015-10, Vol.390, p.100-106
• Main Authors: Sarkar, D., Roy, D., Choudhury, A.B., Yamada, S.
• Format: Article
• Language: English
• Subjects: Current limiters; Direct current; Electric potential; Fault Current Limiter; Faults; FCL; Hysteresis; Iron; Jiles–Atherton; J–A model; Mathematical models; Saturated Core; Shorted ring; Superconducting coil; Voltage
• ISSN: 0304-8853
• DOI: 10.1016/j.jmmm.2015.04.071

In this paper study of the Saturated Iron Core Superconducting Fault Current Limiter (SISFCL) has been carried out. Since in an SISFCL, the iron core plays a key role in distributing the magnetic flux, the hysteresis property of the core material has been introduced in a mathematical model to get a more accurate result. In this paper the Jiles–Atherton hysteresis model has been used for modeling the core. The equations are solved through numerical method and performances of SISFCL are analyzed for both normal and fault conditions. On further analysis it is observed that for suppression of higher value of fault current a high voltage develops across the DC source. Hence there is a chance of the DC source being damaged by the rise in voltage under fault condition. In order to protect the DC source, a shorted ring is introduced in the SISFCL circuit and its effects have been analyzed. It is noticed that the shorted ring has successfully reduced the voltage across the DC coil during fault condition while the performance of the limiter remains the same. •Mathematical modeling of SISFCL has been established.•Hysteresis effect has been included using J–A model.•Mathematical model of SISFCL using the Shorted Ring have been established.•Comparisons are drawn between the responses with and without shorted ring.