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System-Level Studies of a \hbox {MgB}_{2} Superconducting Fault-Current Limiter in an Active Distribution Network

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8 Author(s)

Superconducting fault-current limiters are being considered as a potential technology for restricting fault current to acceptable levels without extensive and costly network asset replacement. Such an issue currently arises primarily from the connection of a distributed generation. This paper first investigates the fault studies of an active medium-voltage distribution network with several superconducting fault-current-limiter deployment strategies and then considers their impact on circuit-breaker transient recovery voltage. These circuit-breaker characteristics at various voltage levels have been studied, and it is demonstrated that the superconducting fault-current limiter is capable of reducing both the magnitude and the rate of rise of the transient recovery voltage.

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Applied Superconductivity, IEEE Transactions on  (Volume:20 ,  Issue: 2 )