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Simulation of Broken Conductor in Distribution Network by ATP-EMTP Program
Pacula, Václav ; Novotný, Jan (referee) ; Paar, Martin (advisor)
When broken conductor will impact on the ground. In isolated networks to ground fault occurs. For fault detection is the most commonly used method of zero-sequence voltage. The principle of the method is the sum of the voltage in all phases in the symmetric systém is the sum zero. The aim is to compare this method with the method of symmetrical sequence method and timeshiftomg. The method of symmetrical sequences compares sequency currents. To change the status of the systemis changed period, this method is based on the time shift.For comparison is used the ATP-EMTP program, that simulates the electrical transients. In this program are designed network model in which, these methods are investigated. It is a simple model of an idealized model and part of distribution network. After the simulation waveforms of events are processed and the results found faultdetection. Protection used today are based on measurements of zero-sequence voltage. A newer method of protection that extends further the possibility of detection and localization.
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Measurement of wind oscilatory waves on reservoir
Kotaška, Stanislav ; Pelikán,, Petr (referee) ; Špano, Miroslav (advisor)
This diploma thesis deals with the measurement of wind oscillation waves on reservoirs, especially with regard to the determination of wave properties with a focus on the spectral density. The thesis presents the basics of the theory of creation and propagation of wind oscillation waves, the recherche of measuring devices and a description of the pilot measurement with the processing of measured data in the MATLAB environment using the software tool WAFO. Attached to the CD are sample scripts for data processing from the resistance sensor.
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Static and modal analysis of construction
Krzywoň, Filip ; Nevařil, Aleš (referee) ; Vlk, Zbyněk (advisor)
The bachelor thesis compares the behavior of different models of concrete tower structures influenced by earthquake load. There were several models made in Scia Engineer software and also one model for each tower for manual analysis. The results of modal analysis were further used along with Eurocode 8: Design of structures for earthquake resistance. The deformed models were compared with each other.
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CAD systems and design documentation
Kučera, Jaroslav ; Veselka, František (referee) ; Kuchyňková, Hana (advisor)
Project is specialized to work on modern CAD systems. Introduction treats of the development technical drawing and separates it into periods. There are compared two programs from Autodesk – AutoCAD a Inventor in the next part. Program Autodesk Inventor 2008 Suite is shown in more detail and project show innovations in this program compared to last versions. Work on Autodesk Inventor is shown at production of model of elementary electrotechnic equipment, technical documentation and presentation. This model, engineering drawings and presentation are the part of enclosure project. In end of project is attempt at the look to future of technical drawing.
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Nonlinear dynamic analysis of structures with seismic loads
Navrátilová, Martina ; Nevařil, Aleš (referee) ; Vlk, Zbyněk (advisor)
Diploma thesis compares the methods for the calculation of the response of structures with seismic loads. Linear and nonlinear analyses are used for the calculations. In the case of linear analysis response spectrum method is applied. For nonlinear analysis pushover method is used. These two methods are compared in programs AxisVM and RFEM on the examples of high-rise building and space frame.
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Probability-based model for network traffic
Bednár, Peter ; Jelínek, Mojmír (referee) ; Molnár, Karol (advisor)
This work identifies several basic types of traffic in IP networks and describes main features. The basic network services such as HTTP, VoIP and electronic mail are discussed focusing mainly on HTTP and VoIP probability-based models for network traffic which are applied to the software simulation of real network.
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Differences of understanding and remembering of antique tale red by pupils, compared with antique tale worked out through methods of D.I.E.
Ježková, Kristýna ; Svobodová, Radmila (advisor) ; Hanyš Holemá, Irena (referee)
A diploma thesis is concerned with research. The research is focused on compare of effectiveness and differences of two opposite techniques, which are using in school environment. Methods and techniques of drama in contrast of clasics method of frontal teaching. A primary aim of diploma thesis is finding out, if these particular methods has got influences for better or worst understanding and remembering subject metter and how big are these influences. The diploma thesis is devided on two parts. First is theoretics and second is practics part. Thoretics part is making efforts to sketch these problematics of technical viewpoint. It is woking mainly with specialized literature. Theoretics part is creating foundations for practics part. Practics part is asking about researches questions first and choosing exploratives methodes for research. Like researchs method is selecting of analysis of tests from children from both of classes. Test was created on the basis of taked places of lessons. Starting point for practics part was book names "Old greece mythos and legends" from author Eduard Petiška. In this book I choosed one of them. Choosed legend is "Trója". The end of practics part is reflecting of lessons and knowledges, which was achiaved in this research. In the end will be maked summary and...
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