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Steady state and short-circuit conditions within E.ON 110 kV power network at parallel operation of nodal areas of Otrokovice substation and Sokolnice substation
Mikulinec, René ; Janda, Petr (referee) ; Blažek, Vladimír (advisor)
This thesis deals with the steady operation and short-circuit conditions in the 110 kV network E.ON in a separate and parallel operation of nodal areas of Otrokovice substation and Sokolnice substation. The theoretical part is devoted to the calculation of steady state high-voltage systems using Newton's iterative method, transient phenomena that may occur in the power system short-circuit calculations and theories. The practical part deals with the actual calculations of steady state and short-circuit conditions in a separate and parallel operation of nodal areas Sokolnice-Otrokovice, which were calculated using the dispatching program. These calculations are then evaluated for possible use of involvement in actual operation. At the end there are suggestions on operational measures in the network 110 kV.
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Stabilized operation and short - circuit conditions within E.ON 110 kV power network supplied from Čebín 110kV switching station, during the period of 2011
Chrástek, Radim ; Janda, Petr (referee) ; Blažek, Vladimír (advisor)
The aim of this thesis is to project an operation of bridge connection in distribution network in Čebín’s nodal area. The main task is to check a fulfilment of voltage tolerance in distribution substations 110 kV, load transformer control (400/110 kV, 110/VN kV), distribution power line 110 kV control and short - circuit conditions control. Relevant calculations are performed by dispatching control system, which works with the actual parameters of all distribution network‘s 110 kV facilities. The theoretical part of this thesis is devoted to the way of the calculation of stabilized operation and the short-circuit conditions. In practical part, first we perform an analyse of stabilized operation and the short-circuit conditions of distribution network 110 kV in actual operation. Next step deals with bridge connection design and analysing its operation. The operation of bridge connection is verificated even in specific conditions (disturbance state, increased load). The next section evaluates the results of the calculations. First we deal with actual operations evaluation and proposed the bridge connection. In the next section we evaluate the operation of the bridge connection in the specific operating conditions. Finally, we evaluate the losses in the distribution network 110 kV. If the calculations of the stabilized operation or the short-circuit conditions of distribution network discovers that some of its elements are overloaded, we propose changes to ensure safe and reliable operation of the distribution network.
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Stabilized operation and short - circuit conditions within E.ON 110 kV power network supplied from Sokolnice 110kV switching station, during the period of 2011
Jandora, Jiří ; Janda, Petr (referee) ; Blažek, Vladimír (advisor)
While changing the connection of the power transformators we have to find out if the powered distribution network can accept this change and if it will fulfil the set conditions. Important is to keep the range of permitted voltage on separate distribution points of this network and to find out proportions on separate circuits. This is connected with a circuit load which cannot exceed its limit (transmission capacity). The network is checked against outages of separate circuits (N-1) and we try to find out if other circuits are not overloaded during the transmission of the outaged circuit’s power. We can also suggest various other possible outages. It is also important to find out whether separate distribution points agree with their short-circuit capabilities. Overall we investigate advantages of this circuit. The theoretical part describes the means of calculation of the network functioning and short-circuit conditions. All the calculated results (dispatcher control system Sinaut Spectrum) for the given circuits of power transformators are processed and evaluated in the practical part of the thesis.
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Design of operation of a new 120 MW Maloměřice heating plant power source in E.ON 110 kV power distribution network
Janda, Petr ; Vaculík, Petr (referee) ; Blažek, Vladimír (advisor)
Before putting new power distribution installation into operation and before the connection to grid is needed to validate connectivity of the installation. Purpose of verification is to check compliance with the technical conditions of relevant regulations. Ones of the most important conditions include compliance with the prescribed connection voltage tolerance at the connecting device – and even in the worst-case – and provide necessary short-circuit capability of the other devices in a connected grid. Main task of my master’s thesis is just checking that the voltage tolerance and the control of short-circuit resistance. The calculations were performed by using the dispatching control system that works with the current parameters of the distribution system equipment 110 kV. Theoretical part of thesis describes two main points of the method of calculating the network operation and the method of calculating short-circuit conditions. Based on these theoretical processes are relevant input data processed and evaluated in the dispatching control system. The calculation and evaluate results are presented in the final part of the master’s work.
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Production of anchor foot
Janda, Petr ; Císařová, Michaela (referee) ; Lidmila, Zdeněk (advisor)
The present bachelor thesis deals with a design of anchor foot used for fixing wooden beams in the manner that, prevents a direct contact of the beam and the subsoil. It is made of bent metal sheet of 4 mm thick steel 1.0038 in the production run of 80 000pcs/year. A combination of shearing and bending at a follow tool was selected from among various options as the most appropriate. On the basis of technological, structural and control calculations, tool were designed and the technical documentation was elaborated. A blank sheet of metal with dimensions of 4 x 1500 x 3000mm (using 94%) was chosen as a semi-finished product. On the basis of the total shearing force, which was greater that the bending force, the same press CDCS 2500 P81 made by the company Dirinler was selected for both tools. Using the economic evaluation, production costs per one anchor foot were calculated in the amount of 102,3CZK, including 30% profit of the company. According to the calculated turning point, the production becomes profitable after manufacture of 12106pcs.
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Telepresence
Parkan Janda, Petr ; VOJTĚCHOVSKÝ, Miloš (advisor) ; BLAŽÍČEK, Martin (referee)
The aim of my thesis Telepresence, from art to everyday life is to outline the basic facts about evolution of Telepresence. In specific cases, I try to illustrate its shapes and forms. My thesis is based on work of seven artists, which reflects changes in telepresence from the eighties to the present. I examined the fact, that telepresence changed from exclusive art into everyday media. At the end, I ask myself question, how society adapted to the massive growth of telepresence in everyday life.
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The characteristic work of paramedic in the operations centre- stress factors and possibilities of their elimination
JANDA, Petr
In my bachelor thiesis of the Characteristics of the paramedical rescuer´s job at the control centre - stress factors and possibilities of their elimination, I concentrated on the Health control centre and the employees working there. Particularly, on their work and stress factors that affect these employees. The issue of a job at the Health Control Centre of Health Rescue Service is really wide and interesting. In a wide range, operators are able to increase the quality of human rescue due to their knowledge and skills. The theoretical part of my thesis concerns paramedics, health rescue service, the topic of work at health control centres, further stress, reactions to stress, as well as possibilities of stress eliminations. In the research part, I focused on the stress situacions that occur in this profession and that affect every operator. The research was carried out with the qualitative form, where the qualitative research was performed with the technique of a controlled dialogue. The data acquisition was realized with the questioning method followed by registracion and evaluation. The first aim of the thesis was to analyze paramedicals´ work processes at the control centre. As the second aim, I set to find out the stress factors specific for the operator´s profession, to characterize them more closely and suggest their elimination. It resulted from the research thatemployees working at the control centre know their work procedure, their proceed in accordance with them and are further educated in their branch. Moreover, it turned out that operators constantly face stress situacions and tasks which they have to solve. However, these situacions can be partly influenced, as written at the end of this thesis. In conclusion, I would like to mention that this thesis contains my opinions on this topic and suggestions for the improvement of the present situacion. At the same time, the thesis offers space for a discussion and consideration.
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Copyright Protection of Computer Programmes
Obermajer, Miloslav ; Hejda, Jan (advisor) ; Janda, Petr (referee)
Diploma thesis defines the elements of legal protection of copyright and intellectual property rights, which plays an important role in nowadays software development. It contains a general evaluation of the legal protection of copyright and its dynamics in the near future, which depends on the situation on the IT market, changes in the structure of customers, including their requirements. Maps the feedback between copyright law and the problems of business processes accompanying technical side of software development and modifications. Maps software links with third party products, development tools and its relationship to copyright issues. It describes distribution models and promotion to promote protection of computer programs.
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