Přístupnostní navigace
E-application
Search Search Close
Branch Details
Original title in Czech: Silnoproudá elektrotechnika a elektroenergetikaFEKTAbbreviation: PP-SEEAcad. year: 2013/2014
Programme: Electrical Engineering and Communication
Length of Study: 4 years
Profile
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
Key learning outcomes
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
Occupational profiles of graduates with examples
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.
Guarantor
doc. Dr. Ing. Miroslav Patočka
Issued topics of Doctoral Study Program
The aim is to develop and verify new voltage quality parameters applicable for voltage quality on-line monitoring, optimization of mitigation techniques, etc.
Tutor: Drápela Jiří, prof. Ing., Ph.D.
The aim is to create a database of fault records and measured data during experiments, which have been carried out in a real distribution network. Through such quality database should be possible to evaluate the measured currents and voltages and transients during each of faults or fault circuit parameter changes. This is especially the evaluation frequency, maximum value or time constant of transients. It assumes working in an accessible database program.
Tutor: Orságová Jaroslava, doc. Ing., Ph.D.
One of the issues in the lighting technology in recent years is the question of illuminance and luminance measurement in the outdoor environment in the long term, so-called monitoring. The issue is particularly joined with so-called "light pollution" phenomenon. As the technology for these purposes is not widely available, there arise a number of sub-issues to solve. Difficult issues are especially long-term measurements stability, automated data collection, autocalibration processes, processing of large sets of measurement, data processing in real-time, processing of image data from digital cameras for luminance analysis, etc. Within the thesis student could work, depend on availability of laboratory, on development measurement systems that are capable of long and accurate capture desired photometric quantities in outdoor environments, where it is necessary to count with influences such as temperature and humidity and exposure to extreme radiation - the solar spectrum, UV and IR radiation. Use of such devices are offered in the monitoring of sunshine and above-mentioned monitoring and obtrusive light.
Tutor: Baxant Petr, doc. Ing., Ph.D.
Fault protection of power systems is actual topic. In this time the utillities implement the digital communication according the standard IEC61850. A part of this process could be transfer of measured values from instrument transformers or sensors in digital form. The main aim of this tesis is development of protection function using input data in digital form and optimalization of this function in workload point of view of each element of the system.
Tutor: Toman Petr, prof. Ing., Ph.D.
The theme is focused on especially long-term tests for electrical machines, particularly with a sliding contact. The work builds on the extensive knowledge and skills in this area, which were obtained on UVEE FEEC the application of modern technology, not only in the design of electrical machines, but also sliding contact. The aim is to identify the dependencies and relationships between components, parameters in various design and technological design of machines linked eg EMC .. The problem is solved UVEE continuously and is achieved interesting results published on an international level. The Institute has a special measuring workplace for practical verification of theoretical assumptions and cooperates with leading companies not only in this country but also abroad.
Tutor: Veselka František, doc. Ing., CSc.
The development of electromechanical systems in particular is currently associated with the requirement of high reliability and durability as defined in connection with the transition to higher levels of performance and speed. Therefore, the topic is focused on assessing the impact of failures on the part of the electromechanical system's operating characteristics. The aim is to complete the study and diagnosis of electromagnetic and mechanical properties on the vibration generation and application of supply current. The work consists of theoretical, experimental and practical part. The issue is to continuously UVEE resolved within several projects.
The main aim of the thesis is the analysis of available method of earth fault location, working up of the method of additional earthig of affected phase and evaluation of possible negative influences on network safety.
This topic is focused on research of high efficiency electric motors, loss analysis and methods of loss reduction. Analysis of winding, space harmonics, elimination of parasitic space harmonics, special rotor designs, employment of recent materials of permanent magnets. Motor design using program Ansoft-RMxprt, FEM based simulation of designed motors using Ansoft-Maxwell 2D/3D, optimization. Realization and testing of the laboratory samples of motors is assumed.
Tutor: Vítek Ondřej, doc. Ing., Ph.D.
This topic is focused on research of high-speed electrical machines, especially induction motors and permanent magnet synchronous motors. Analysis of winding, utilization of special rotor designs, employment of recent materials of permanent magnets, reduction of losses. FEM based simulation of designed motors using program Ansoft-Maxwell 2D/3D. Realization and testing of the laboratory samples of motors is assumed, especially up to 12 kW and 45000 rpm.
Low-Frequency Electro-Magnetic Compatibility in Low- and Middle-Voltage Distribution Systems Highly Penetrated by Distributed Nonlinear and Dynamic Loads.
The theme is focused on the measurement of very small distances and deformation of rotating electrical parts. machines that have a significant effect on the operating characteristics of machines and equipment. The measurement is made modern measuring, recording and evaluation techniques. The aim is to assess and optimize the partial impacts of physical quantities on the characteristics and parameters of electromechanical systems. The work consists of theoretical, experimental and practical part. The issue is UVEE continuously addressed in the grant project, forthcoming international cooperation. Results are regularly published.
The topic is aimed at the analysis of present method for testing of insulation of devices for 110 kV and 22 kV distribution networks. The solver will deal with insulation testing methodology under electric stress of high ac, dc and impulse voltages in test laboratories, dry and wet tests, pollution test, corona and voltage distribution tests on insulators. With respect of this tests the measurement of insulation resistance, dielectric response analysis, recovery voltage, capacitance and tan, partial discharges, must be analyzed as well. This work assumes introduction to relevant national and international standards for above mentioned tests, which the technical project of HV laboratory should be based on.
The thermal plasma is being widely technologically employed. One of the possible plasma sources is the plasma torch. It produces the plasma by means of axially blasted electrical arc. The aim of this work is to suggest mathematical-physical model of arc and to compare with simplified model. The values measured on plasma torch will be used for verification of the created model.
Tutor: Lázničková Ilona, doc. Ing., Ph.D.
The aim of the work is research in field of monitoring and satte evaluation of accumulatros foccused on the independent electric traction. The foccus will be held on modern lithium accumulators. The work will be oriented on finding of suitable models and their parammeters evaluation during accumulator lifetime and on methods of quantitative representatioan of accumulator state.
Tutor: Klíma Bohumil, doc. Ing., Ph.D.
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.
This theme is focused on a synthesis of substitutional networks of induction machines usable for accurate modelling of all dominant losses of machines operating in a wide range of speed and torque. New control strategies using these mentioned models create a part of this theme. The control algorithms will be focused on maximum efficiency of the system DC/AC inverter + induction machine.
Tutor: Vorel Pavel, doc. Ing., Ph.D.
Using high speed photography for an analysis and computational reconstruction of switching arc behavior in a switchgear under real conditions. Analysis of spectral filterring inflence on the switching arc digital image quality. Development of a software for high speed framing acquisition and subsequent digital image processing.
Tutor: Aubrecht Vladimír, prof. RNDr., CSc.
The aim of the work is the algorithms formulation for electric machines design with maximum efficiency and optimal utilization of material properties.
Tutor: Ondrůšek Čestmír, doc. Ing., CSc.
The thesis is focused on optimizing the operation of power system - will be utilized multivalent energy system providing heat and electrical energy. The system also includes storage system. The aim is to design and optimize the operation of the hybrid system available in the light at the correct energy balance and economic operation. The optimization process will be based on real measuring in the energy system and of mathematical modeling of operation.
Tutor: Mastný Petr, doc. Ing., Ph.D.
Electronuclear reactors are perspective hybrid systems coupling together reactor and akcelerátor technologies, fusion technologies variantly. Systems are offering high level of safety and spent fuel transmutation capability or thorium utilization. Design and construction of the system have problems with technological and funding, physical challenges should also be taken into account. Problems of physical calculation and measurements should be analyzed within proposed dissertasion thesis.
Tutor: Katovský Karel, doc. Ing., Ph.D.
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.
The subject of the topic is the study and development of methodologies for the design, development and certification of electrical drives in applications with high secutity demands such as aviation, railway and automotive applications. Work will focus on the development of control systems hardware and the software development for drives with high reliability.
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 and experimental measuring on a real model.
The theme includes issues of sliding contact in high-end applications of electromechanical systems operating in dynamic operating conditions (Starting, regulation, etc.) with high ratings of current, voltage, speed, power, speed, and defined the parameters of the surrounding environment. Since the development of electromechanical systems in particular is currently associated with a requirement for high reliability and durability as defined, should be to extend the life of work sliding contact, reducing degradation of the stationary and moving parts of the sliding contact, eliminating the influence of the surroundings on the current flow between the stationary and moving part of the sliding contact. Partial information will be obtained during the analysis and field current.
The aim of the dissertation is to design a protection system using a digital process data (sensors with communication IEC61850). Individual protective functions of the system will be tested through a simulation model of the system, which will protect the selected protection functions. Thus the work will give a methodology for testing to verify the correct function of protection in combination with sensory measurement of current and voltage with a digital output IEC 61850-9-2. Based on this methodology will be optimized algorithm protective function receiving process data of current sensors and evaluate its benefits compared to solutions with traditional instrument transformers with analog output.
The theme is focused on the application of nanotechnology in electrical machines, particularly with a sliding contact. The work builds on the extensive knowledge and skills in this area, which were obtained on UVEE FEEC in the application of modern technology in the design of electrical machines. The aim is to identify the dependencies and relationships between components in different design and application version with a link such as EMC .. The problem is solved UVEE continuously and is achieved interesting results published on an international level. The Institute has a special measuring workplaces for practical verification of theoretical assumptions and cooperates with leading companies.
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.
Utilization of advanced electricity meters for distribution systems control.
The method seems to be powerful for transients description of the systems with parameters dynamic variability.
The theme is focused on the measurement and vibration analysis of electric machines. Specifically, the diagnostic spectrum measured vibration acceleration amplitudes and asynchronous motors. The main objective is to create a method based on neural networks, which has to recognize various types of failures of electrical machinery and enable their prediction.
Tutor: Janda Marcel, Ing., Ph.D.
Voltage regulation in active distribution systems