Piotr Suchorolski
supervisor: Adam Smolarczyk
Parallel ferroresonance is a disturbance that often occurs in industrial medium voltage networks. Both the explanation and analysis of this phenomenon requires knowledge of many areas, such as the theory of nonlinear dynamical systems, electrical transients in power systems and electrical power protection relays theory. Ferroresonance is a challenge both during attempts to analyze it, but also during the implementation of algorithms for its detection or methods of effective elimination.
The undertaken doctoral thesis focuses on the mathematical description and simulation modeling of harmonic and subharmonic ferroresonance oscillations in medium voltage networks, researching the impact of these oscillations on the operation of protection relays used in industrial distribution networks and finally the development of a model (concept) of an adaptive ferroresonance oscillations damper that would cooperate with protection relays systems.
In addition, as part of the research work, recordings of ferroresonance oscillations excited in physical model of the medium voltage network will be performed. The obtained recordings will then be used to develop a computer simulation model, its tuning and validation of the simulation results.
Both the recorded waveforms and those created by simulation models will be used to study the effect of ferroresonance on the operation of protection relays and the damping efficiency of the developed adaptive ferroresonance oscillations damper.