Abstract
Transient stability is the ability of the power system to maintain synchronism when subjected to a severe disturbance, such as a short circuit on a transmission line. To improve stability, inductive type superconducting fault current limiter (SFCL) and shunt FACTS Controller (SVC) can be effectively used. This paper proposes the use of combined model based SFCL and SVC for enhancing the transient stability of a multi-machine power system considering the automatic voltage regulator. The main role of the proposed combined model is to attain at the same time a flexible control of reactive power using SVC Controller and to reduce fault current using superconducting technology based SFCL. In the present work, modification of the admittance matrix method is used for modeling of SFCL; Critical Clearing Time (CCT) has been used as an index for evaluated transient stability. The transient stability is assessed by the criterion of relative rotor angles, using numerical integration method. The effectiveness of the proposed combined model is tested on the IEEE benchmarked four-machine two-area test system applied to the case of three-phase short circuit fault in one transmission line. A simulation results are presented in this document. DOI: http://dx.doi.org/10.11591/telkomnika.v13i3.7175
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