Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Permanent URI for this collectionhttps://hdl.handle.net/11147/11
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Conference Object Citation - Scopus: 3Effect of Levy Type Load Fluctuations on the Stability of Single Machine Infinite Bus Power Systems(IEEE, 2017) Yılmaz, Serpil; Savacı, Ferit AcarIn this paper, the stochastic excitations in single machine infinite bus power systems have been modeled as alpha-stable Levy processes. Through the simulations of the corresponding stochastic differential equations, we have shown that the impulsiveness and/or asymmetry in the distributions of the load fluctuations can cause the instability of the rotor angle. Hence, the synchronism is lost and the rotor angle although it is stable in the sense of probability, it might not be stable in the mean square sense. However, by properly choosing the parameters of Levy type fluctuations the rotor angle stability can be improved in the sense of probability as the beneficience of noise.Conference Object Citation - WoS: 1Citation - Scopus: 4Basin Stability of Single Machine Infinite Bus Power Systems With Levy Type Load Fluctuations(Institute of Electrical and Electronics Engineers Inc., 2018) Yılmaz, Serpil; Savacı, Ferit AcarIn this paper, the basin stability of single machine infinite bus power systems with alpha-stable Levy type load fluctuations are investigated over the parameter space of mechanical power and damping parameter. The probabilities of returning to the stable equilibrium point are calculated for different characteristic exponent and skewness parameters of alpha-stable Levy noise to see the effect of impulsive and asymmetric load fluctuations.