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. Modern technologies for power DC/DC converters with high output voltage

   This topic is focused on problem analysis of DC/DC converters with pulse transformers, with standard input voltage 300V or 600V (rectified net), output voltage 1kV-10kV and output power of several kW. Specific problems with construction of the secondary rectifier have to be solved. Further parasitic capacity of the output choke and transformation of secondary side parasitic capacity to the primary circuit represent another problems. Several power circuit topologies can be used to eliminate these problems. Modern switching semiconductors based on silicon-carbide (SiC) - diodes and transistors - enable to use topologies unaccepltable for earlier classical switching devices. High switching frequency can be achieved using these modern devices. This brings a dimension minimisation of transformers and chokes and further an elimination of the mentioned problems with parasitic capacities and with insulation problems. However the usage of fast SiC devices brings a necessity to solve new technical problems - transistor driving circuits, corresponding ringing problems etc. Available topologies with respect to the usage of SiC devices will be researched in the work theoretically and also practically.

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

2. The models of electrical machines at adaptive CAD systems

   Aims of the thesis: - Search documentation on exchange data formats - Specification of possibility CAD systems cooperation with external databases. - Usage analasys of parametrs at Inventor for items and component database creation. - The creating of Library centrum at Autodesk Inventor. - Specification of possibility CAD systems cooperation with Kinematics analysis

   Tutor: Kuchyňková Hana, doc. Dr. Ing.