The goal of the postgradual doctoral (PhD) study is the education for scientific work in the area of power electrical engineering and power systems. Graduates of PhD find occupation either as scientific or research workers including industrial development, either as universty teachers and in higher manager functions as well

PhD-graduate obtains high theoretical knowledge and will learn to solve complicated scientific and technological problems by oneself PhD-graduate is ready for further professional rise with a high degree of adaptivity Graduates of PhD find occupation either as scientific or research workers including industrial development, either as universty teachers and in higher manager functions as well

The graduate obtains broad knowledge of subject of high power engineering. The knowledge is build mainly on theoretical background of the subject. Moreover the graduate will obtain deep special knowledge aimed in direction of his/her thesis. The graduate will be able to perform scientific and/or applied research based on up to date theoretical knowledge. The graduate will be able to organize and lead a team of researchers in the studied subject.

doc. Dr. Ing. Miroslav Patočka

1. DC Power Systems Voltage Quality

   With increasing number of DC power network related applications, necessity of the power/voltage quality assessment in those DC Power Systems can be expected. The aim of the work is to develop DC voltage quality indices starting from DC traction systems and AC public distribution systems voltage quality assessment practice. The theme takes a part of a research project in cooperation with K M B systems company. More information: drapela@feec.vutbr.cz.

   Tutor: Drápela Jiří, prof. Ing., Ph.D.

2. Chromatic flicker perception modeling in flickermeters

   Visible light variation may leads to disturbance of human’s visual perception. The origin of such negative effect is in the eye anatomy and physiology. The major influence on the flickering light perception can be found in eye viewing field, photoreceptors (cones of three types and rods) and their distribution at retina as a part of eye anatomy and in eye adaptation mechanisms like pupil, photo-chemical and neural adaptation (response) to luminous variations (including the photoreceptors spectral luminous efficiency) as a part of eye physiology. The human eye can be seen as specialized luminance multi-detector where the stimulation contrast is as important as radiant density. There are differentiated three types of flicker: temporal, spatial and chromatic. All of these flickers are joyless and may involve many psychological interactions. In artificially illuminated areas, lamps light variations due to variations in supply voltage may also lead to flicker perception. Such lamp possibly will produce light with time-varying radiant flux and its spectral distribution. The lamps flickering is produced by a voltage Phase Modulation (PM), mainly by Phase Jumps (PJ) and by Interharmonic Voltages (IH) superimposed on a voltage waveform. Thesis is focused on the voltage fluctuation to lamps time-varying radiant flux and its spectral distribution fluctuation transfer analysis and on the utilization of the analysis results for development and realization of an objective flickermeter having response to both the temporal luminance and chromatic flicker. The thesis aim is the realization of the new flickermeter types implemented in LabVIEW, with the experimental verification. The thesis covers theoretical-analytical, developmental and also practical-experimental part of study. More information: drapela@feec.vutbr.cz.

   Tutor: Drápela Jiří, prof. Ing., Ph.D.

3. Investigation of influence of modified nuclear fuel rods surfaces on critical heat flux for flow boiling

   Student will operate and utilize unique experimental facility being built at Department of Electrical Power Engineering of FEEC BUT. Facility is design for investigation of flow boiling crisis at medium-low pressure of light water. Objective of PhD research is to bring new informations about modified and innovative surfaces influence on boiling crisis parameters. Data will be crucial for safety analyses and accidental conditions analyses of pressurized and boiling water reactors.

   Tutor: Katovský Karel, doc. Ing., Ph.D.

4. Low-Frequency Electro-Magnetic Compatibility in Low- and Middle-Voltage Distribution Systems Highly Penetrated by Distributed Nonlinear, Dynamic and Parametri

   Low-Frequency Electro-Magnetic Compatibility in Low- and Middle-Voltage Distribution Systems Highly Penetrated by Distributed Nonlinear, Dynamic and Parametri

   Tutor: Drápela Jiří, prof. Ing., Ph.D.

5. New concept of surge protection in distribution networks

   The main aim of the thesis is design of the new concept of lightning and switching surge protection of generators, motors, transformers and decompensation coils in distribution networks.

   Tutor: Toman Petr, prof. Ing., Ph.D.

6. Power system with electric energy accumulation

   Stability of electric power supply is - as a term - closely related with electrical energy production gained from renewable power sources (mainly from wind and photovoltaic power plants). The research will be focused on possibilities of accumulation of electric energy produced from renewable power sources with the help of modern technologies while focusing on hydrogen (VRB systems) utilization and pumped storage hydro plants for its accumulation. The result of the work will be the draft measures in the energy system, which can solve time disproportion between electrical energy supply and take-off from the renewable power sources. The solution is connected with computer simulation (Matlab) and experimental measuring on a real model.

   Tutor: Mastný Petr, doc. Ing., Ph.D.

7. Substation earthing system optimisation through the application of quantified risk analysis

   The main aim of the work is detailed risk analysis of electrical networks operated with faults and proposal of methodology for earthing system optimization.

   Tutor: Toman Petr, prof. Ing., Ph.D.

8. The possibilities of load control in distribution networks

   The main aim of the work is the proposal of algorithms for load prediction based on history and on evaluation of needs and proposal of implementation into control of distribution networks.

   Tutor: Toman Petr, prof. Ing., Ph.D.

9. Using of the partial discharge for identification of fault in distribution networks.

   The power system reliability is high priority of present society. The main aim of the thesis is the analysis of present methods of condition evaluation of distribution network equipments and using the got information for fault detection in distribution networks. The example could be worse insulation state of transformers, grommets, single phase fault in line with covered conductors etc.

   Tutor: Toman Petr, prof. Ing., Ph.D.

10. Utilization of advanced electricity meters for distribution systems control

    The aim is to define expected functionalities of the revenue meters and their integration to individual security-technical layers of a distribution system management, furthermore to optimize metering features and data concentration for individual tasks.

    Tutor: Drápela Jiří, prof. Ing., Ph.D.

11. Voltage regulation in active distribution systems

    The aim is to propose coordination of voltage regulation techniques and to develop voltage regulation scheme for future active distribution systems considering entire set of available technical assets.

    Tutor: Drápela Jiří, prof. Ing., Ph.D.