Indonesian Journal of Electrical Engineering and Computer Science
Vol 18, No 3: June 2020

Fuzzy controlled SVC for power system damping

Zalina Kamis (Universiti Teknikal Malaysia Melaka)
Mohd Ruddin Ab. Ghani (Universiti Teknikal Malaysia Melaka)
Muhammad Nizam Kamaruddin (Universiti Teknikal Malaysia Melaka)
Hairol Nizam Mohd Shah (Universiti Teknikal Malaysia Melaka)



Article Info

Publish Date
01 Jun 2020

Abstract

This paper presents the ability of the fuzzy logic-based stabilizer used to generate the supplementary voltage control signal of the SVC to improve the damping of the inter-area mode oscillation in the power system. The base system is symmetrical, consisting of two identical areas connected by a relatively weak tie line. The SVC is chosen to be installed at the tie line midpoint. The active power of the local line will be used as an input signal for the stabilizer. The additional signal is calculated using fuzzy membership function to determine the quantity of reactive power supplied absorbed by SVC. The system oscillation is indicated by a 3-phase-to-ground short circuit occurring at 0.2s of the simulation and subsequently clearing after 100ms. Simulation with the sample power system shows that when subjected to a disturbance, fuzzy logic-based SVC stabilizer provides good damping in inter-area mode oscillation for the system. The effectiveness of the stabilizer applied with and without PSS will also be investigated.

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