This master's thesis discusses electromechanical disturbance propagation in an electric power system in simple terms. The basic idea is to explain the phenomenon of electromechanical disturbance and its propagation to every reader, either a layman or a future student of electrical power engineering.
The thesis comprises:
• a theoretical study, which introduces the basics and the concepts necessary to understand this topic;
• the main part with practical cases providing an insight into the topic in various ways. The cases do not include complex network topologies of today's actual systems, but basic topologies, which are in fact a part of large power systems. However, the complexity of the practical cases increases throughout the thesis; all the while using the same elements. The networks are modeled with busbars, which are linked to synchronous generators with inertia constant H and rotor angle δr through transient reactance X'd; the links between the busbars, however, are modeled only with imaginary part of impendance, reactance Xv. The phenomenon was observed by changing the parameters that significantly affect the propagation, or rather the speed of electromechanical disturbance propagation for different topologies. These parameters are inertia constant and transmission line reactance, which are also the main components of the observed networks;
• the conclusion, where the findings from the main part of the thesis are summarized, and recommendations for improving and upgrading this thesis and related papers are provided.