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. Analysis and measurement of dynamical effects in power electronics

   Thema is focused on analysis methods of turning-on and turning-off processes of power switching transistors. A research in the field of current sensors with a bandwith at least 150 MHz is a part of the work. Next to the theoretical design of these sensors an experimantal proof of accuracy of output signals will be required. An application in power circuits with IGBTs, MOS-FETs and extremely fast SiC MOS-FETs is expexted.

   Tutor: Vorel Pavel, doc. Ing., Ph.D.

2. High speed induction motors for dynamometers

   The aim of the research is to calculate and design high speed induction machine for dynamometers. Induction machine parameters are 200kW, 20000 r.p.m. Such machine has to fulfil high requirements for dynamic behaviour, it means to have low inertia torque, high stiffnes, high efficiency and reliability. Machine optimalization using artificial inteligence algorithms, simulation and measurement of dynamic properties will bet he goal of the research. Pattern of the machine will be produced to prove calcualtions and simulations. The research is in the frame of project Centrum and with cooperation of VUES Company.

   Tutor: Ondrůšek Čestmír, doc. Ing., CSc.

3. High speed permanent magnet synchronous machines for dynamometers

   The aim of the research is to calculate and design high speed synchronous machine with permanent magnets for dynamometers. Synchronous machine parameters are 120kW, 30000 r.p.m. Such machine has to fulfil high requirements for dynamic behaviour, it means to have low inertia torque, high stiffnes, high efficiency and reliability. Machine optimalization using artificial inteligence algorithms, simulation and measurement of dynamic properties will be the goal of the research. Pattern of the machine will be produced to prove calculations and simulations. The research is in the frame of project Centrum and with cooperation of VUES Company.

   Tutor: Ondrůšek Čestmír, doc. Ing., CSc.

4. Independent thermal power measurement of an accelerator driven subcritical nuclear reactor with spallation neutron source

   Experimentaly focused PhD topic which will be solved in cooperation with JINR Dubna. Long-term fellowship in the group dealing with transmutation of spent nuclear fuel using accelerator driven systems is a part of the PhD study. Main objective of the thesis is to propose and validate alternative method for thermal power measurement, especially: get familiar with temperature measurement techniques and choose the most appropriate one (e.g. thermocouple), temperature changes will be within the range of tenths of Kelvins; design and construct tool for temperature changes measurement; deploy sensors in different places of spallation target and calculate integral values after experiments; compare results with different methods (multifoil activation method) and with calculations. Co-superviser of the thesis will be researcher of Joint Institute for Nuclear Research Dubna from Department of Nuclear Spectroscopy from group lead by Dr.Alexander Alexandrovich Solnyshkin.

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

5. Induction motor control with respect to efficiency operating in a wide range of speed and torque

   Thema is focused on problems of exact modelling of losses in IM to express all dominant losees at given torque and speed as a function of rotor frequency and flux density. Then the local minimum and corresponding optimum slip frequency and flux density can be found. This analytic task requires an accurate motor model and also to take into consideration the over-saturation of magnetizing inductance which occurs in real opeartion.

   Tutor: Vorel Pavel, doc. Ing., Ph.D.

6. Nanotechnologies in electromechanical systems

   Thesis is focused to nanotechnologies that are used in electromechanical systems, especially with the slide contact. Thesis will continue in extensive knowledge gained in this field of study.

   Tutor: Veselka František, doc. Ing., CSc.

7. Neutron flux and power quantities measurement of an accelerator driven subcritical nuclear reactor with spallation neutron source

   Experimentaly focused PhD topic which will be solved in cooperation with JINR Dubna. Long-term fellowship in the group dealing with transmutation of spent nuclear fuel using accelerator driven systems is a part of the PhD study. Main objective of the thesis is to measure neutron field parameters and power related quantities of an ADS system with conventional methods (e.g.multifoil activation method) and results compare with calculations (and with results of other methods if available). Co-superviser of the thesis will be the head of Czech group in Joint Institute for Nuclear Research Dubna, Dr.Alois Kovalik, and researcher from Department of Nuclear Spectroscopy from group lead by Dr.Alexander Alexandrovich Solnyshkin.

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

8. Physical values measurement on the rotating parts

   This topic is focused to the measurement of small distances and deformations of the rotating parts of electrical machines. This phenomenon effects machine operating conditions.

   Tutor: Veselka František, doc. Ing., CSc.

9. Problems of contact connection in low voltage switchgear

   Based on requirements for contact materials, suitable contact materials will be investigated in various switchgear design. Consequently, the selected materials will be analyzed in detail in order to find cruciable quantities involved in numeric simulations of switchgear behavior with the contact connection taken into account (electrical and thermal resistances, ..).

   Tutor: Aubrecht Vladimír, prof. RNDr., CSc.

10. Raditive heat transfer in electric arc plasmas

    Solution of energy balance in an arc plasma with respect to the radiative heat transfer. Influence of various spectral intervals and various molecular species on the radiative heat transfer in the arc plasma. Development of computer code for calculation of absorption coefficients of given thermal plasmas.

    Tutor: Aubrecht Vladimír, prof. RNDr., CSc.

11. Slide contact dynamic features study

    This topic is realted to the sliding contact issue in special electromechanical systems which is oprating in dynamic operating conditions with high nominal current, voltage, rotation speed, speed and defined environment parametres.

    Tutor: Veselka František, doc. Ing., CSc.

12. Utilization of TANGRA facility (TAgged Neutrons and Gamma RAys) for determination of the elemental structure of materials and fusion neutrons reaction rates

    The new experimental setup TANGRA, for the investigation of neutron induced nuclear reactions, e.g. (n,xn), (n,xng), (n,g), (n,f), on a number of important isotopes for nuclear power, science and engineering (235,238U, 237Np, 239Pu, 244,245,248Cm) is under construction and being tested at the Frank Laboratory of Neutron Physics (FLNP) of the Joint Institute for Nuclear Research (JINR) in Dubna. Student will be a member of research team of the TANGRA project and will contribute to development and utilization of the facility especially for nuclear power research. A long-term fellowship in Joint Institute for Nuclear Research Dubna, Russa is a part of PhD study of the theme. Co-supervisor of the thesis will be Dr. Yurij Nikolaevich Kopatch, the researcher of Frank Laboratory of Neutron Physics and the Head of Sector of investigations of neutron-nuclear interactions.

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