Waluyo, Waluyo and Krisshandy, Gregorius Grady and Taryana, Nandang (2019) Investigation of Parameters on Small Signal Stability of 206.1 MV A Generators. Journal of Engineering and Applied Sciences, 14 (20). pp. 7457-7465. ISSN 1816-949X

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Abstract

This research was investigation on small signal stability on two generators. The analyses were based on the single machine infinite bus with the increasing load as 25% of 1751vfW and 85 MV AR. It was yielded the damping ratios, oscillating frequencies and stability conditions. Furthermore, it could be calculated the system synchronizing and damping constants. The results for the active and reactive powers and for the terminal and bus voltages in both generators were the same as the oscillating in 8-9.3 sec. The chosen data for the computations were at the time before the increasing load in 7.8 sec with every sampling oscillation as 0.05 sec. The results were the system in asymptote stables with the 0.0043-0.0044 damping ratios, 1.2108-1.2132 Hz for oscillating frequencies, around 1.47 pu torque for synchronizing constant and 0.50 pu torque per changing speed for the damping constant. Key words: Asymptote stable, damping constant, damping ratio, synchronizing constant, small signal stability, oscillation

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