Dynamic Stability Improvement of Multimachine Power Systems using ANFIS-based Power System Stabilizer

Abstract: Modern power system are very vurnerable to against load fluctuation during their operation. Load fluctuation is identified as small disturbance that it is very important in small signal stability (dynamic stability) testing. This research consisted of large scale power system symplification. And, ANFIS-based power system stabilizer (AP) is proposed to improve the dynamic stability of multimachine. The ANFIS method is proposed because the ANFIS computation is more efective than Mamdani fuzzy computation. Simulation results show that the proposed PSS is able to maintain the dynamic stability by decreasing peak overshoot to the value   3,37  10  5 pu and accelerating settling time to the time 4.01 s for rotor speed deviation of Machine-2. Also, the peak overshoot is decreased to the value   1,34  10  5 pu and the settling time is accelerated to the time 3.98 s for rotor speed deviation of Machine-3.
Keywords: Stability improvement, dynamic, multimachine, PSS, ANFIS
Author: Agung Budi Muljono
Journal Code: jptkomputergg150164

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