Analysis the Response of Single and Multiple Superconducting Fault Current Limiters in Smart Grid for Symmetrical Faults

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Author(s) Priyanka Mahajan | Paresh J. Shahb | Rakesh Saxena
Pages 417-425
Volume 5
Issue 7
Date July, 2015
Keywords SFCL, Smart Grid, Power Quality, THD, Symmetrical Faults

Abstract

Superconducting conducting fault current limiters (SFCL) are being considered as a potential technology for reducing fault current to acceptable level, without expensive network replacement. One of the important applications of SFCL for upcoming smart grids is to its possible effect on reduction of fault current. In this paper the fault current reduction using single SFCL and multiple SFCL is investigated by simulating symmetrical faults. For power system security limiting short circuit current is very important. SFCL is most attractive solution to reduced fault current. As the demand is increasing day-by-day, resulted increase in size of generating stations and interconnected distribution network. This leads to the risk of increasing abnormal operation. This increasing level of fault current will result in replacing a large number of devices in power systems, like transformers and circuit breakers. SFCL is one of the most novel alternate solutions to avoid the problem of fault current. It improves power system reliability, power quality and transient stability by reducing the fault current instantaneously. Thus in recent power system, fault current reduction research has been directed towards the superconducting fault current limiters. This paper first present a resistive type SFCL model by integrating in Simulink-Matlab and then simulates various symmetrical faults at different locations in smart grid. Also analysis the response of smart grid without SFCL, single SFCL and multiple SFCL.

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