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Models of distribution systems integrating distributed resources in PSCAD and simulation of chosen operational regimes
Bezecný, Ján ; Kopička, Marek (referee) ; Drápela, Jiří (advisor)
The content of this Master´s Thesis is creating of dynamic models of distributed energy sources in PSCAD and their validation in chosen operation regimes. In the introduction of this thesis is summarized theoretical knowledge about methods for power systems analysis and there is a comparison of static and dynamic methods for power systems analysis. Static methods are used to calculate electric variables in grid nodes. In compare with them, dynamic methods are used to study instantaneous electrical and mechanical variables not only in grid nodes, but also at components of power system. Secondly, we individually designed distributed energy sources in according to requirements, we made a topology of distribution grid and we integrated these energy sources to the distribution grid. Finally, we chose some operation regimes, and studied a behavior of energy sources during these operation regimes.
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Optimizing of air distribution in schools
Cigánková, Kristýna ; Šíma, Jiří (referee) ; Šikula, Ondřej (advisor)
The thesis deals with the issue of indoor air quality of schools and kindergartens. It focuses particularly on the inadequate ventilation and the application of forced ventila-tion in these types of buildings. The proposed solution is applied to a kindergarten in Kuřim. Measurements of the C02 concentration levels were performed in the presence and absence of air conditioning. To elaborate the proposed solution a simulation was made using a software called ANSYS Fluent. Input values for the simulation were obtained from an experimental measurement of a ventilation diffuser made by a company called Climecon ROX using the PIV method. This diffuser was then installed in the kindergarten. The measure-ments were carried out in the framework of the project the experimental validation of numerical models of the air flow in buildings marked with FAST-S-6-3387.
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The measurement of the velocity of abrasive particles at the suction part of the cutting head
Foldyna, Josef ; Zeleňák, Michal ; Klich, Jiří ; Hlaváček, Petr ; Sitek, Libor
To be able to optimize the design of the abrasive cutting head using numerical simulation, it is necessary to gather as much information about processes occurring in the cutting head as possible. The development of the numerical model of processes occurring in the abrasive water jet cutting head during the process of creation and forming of abrasive water jet is currently in progress at the Institute of Geonics in Ostrava. The verification of the model requires, among others, to determine the behaviour of abrasive particles at the input of the cutting head. Therefore, the visualisation of abrasive particles at the input using various parameters of abrasive jet and its subsequent analysis was performed using shadowgraphy (backlighting) technique and the results are presented in the paper.
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Plný tet: UGN_0398575 - DOC
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Simulation methods and risk management
Šemnická, Eliška ; Kuncová, Martina (advisor) ; Borovička, Adam (referee)
Project management is a field in which risk management can be applied. There must be a business case for any project to recognize its benefits for the company. A business case generally uses point estimation of input parameters and evaluates financial criteria for individual variants such as the net present value, pay-back period or internal rate of return. A simulation enables to design a model for the business case analysis while making use of the probability distribution. The model then turns from a deterministic into a stochastic one. The Monte Carlo simulation method, calculating a large number of variants, is employed in projects. The simulation can identify major risk factors, assess their probability and the significance of the impact on the evaluated financial criterion. The analysis outputs suggested by the simulation are the fundamentals of proper risk management. The Crystal Ball simulation software was employed for the calculation in this thesis.
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Lokalizace zdrojů akustické emise pomocí neuronových sítí na základě časových profilů
Chlada, Milan ; Blaháček, Michal ; Převorovský, Zdeněk
Correct localization of acoustic emission (AE) sources is a basic requirement in AE analysis and consequent evaluation of damage mechanism. The localization procedures using artificial neural networks (ANN) represent today highly effective, alternative approach to classical triangulation algorithms. Nevertheless, their application possibilities are limited due to problematic collecting of sufficiently extensive training and testing data sets together with the non-portability of particular trained network to any other object. A new ANN-based approach, using so-called signal arrival time profiles, is proposed to overcome both limitations. Such approach provides the ANN training on numerical models and allows the application of learned ANN on real structures of various scales and materials. This enables considerable extension of ANN application possibilities. New method is illustrated on experimental data obtained during pen-tests on a steel plate, and its remarkable advantages are discussed.
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The role of coaching in organization
Muellerová, Ivonne ; Voráček, Jan (advisor) ; Čopák, Alexander (referee)
The subject of my thesis is "The role of coaching in organization". My study compares management of various companies through interviews and questionnaires to find out the reality about coaching in Czech republic. The result of this thesis is an expert analysis for companies that are not knowledgeable in this field and need quick orientation that will help them to decide if they need coaching. The theoretical part introduces the concept of coaching in organizations. This includes a basic knowledge of coaching, coaching in management, how coaches look at management, shows differences in types of coaches and also coaching models that currently exist. The central part of the thesis is the practical part. It contains three parts and final practical. In first part I mention existence of numerous studies and from those I selected three to focus on. Second part reveals the real situation in companies through structured interviews with management. The third part describes evaluation of coaching from the perspective of the target group. The main conclusion and contribution of this thesis is in the practical part. It includes expert analysis and recommendations for various types of companies according to their size and financial possibilities.
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Interbank contagion under the Basel III regulatory framework
Chleboun, Jakub ; Jakubík, Petr (advisor) ; Lešanovská, Jitka (referee)
This study assesses the impact of the Basel III regulatory framework on interbank contagion. It focuses on the direct interbank contagion that spreads via interbank foreign claims among national banking sectors. A balance sheet-based network model employs the quarterly consolidated banking statistics, collected by the Bank for International Settlements, to simulate the consequences of credit and funding shock under stressed market conditions. Compared to the Basel II, the Basel III regulatory framework reduces the probability of interbank contagion (following a simulated default of one banking sector) from 31% to 14% and lowers the impact of contagion by 63% in terms of average loss for a banking sector. The simulations under both regulatory frameworks show that relatively smaller banking sectors can trigger severe interbank contagion comparable to large banking sectors. Throughout the 2005-2009 period, the Basel III regulatory framework stabilizes the fluctuations of the scope of interbank contagion.
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Modelling and simulation of robotic applications
Šťastný, Martin ; Heriban, Pavel (referee) ; Šťastný, Jiří (advisor)
The aim of this master thesis is to make research of Open Source software, which are used for simulation autonomous robots. At the begining is performed research of selected robotic simulators. In the first part of this work is to get familiar with robotic simulator Gazebo and robotic framework ROS. The second part of this work deals with simulating and subsequent implementation of choosen robotic tasks through the simulator Gazebo and the ROS framework.
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The influence of oligopolistic structure on the performance of banking system from the point of game theory
Tisoň, David
The paper tries to grasp the phenomenon of procyclical behavior of oligopolistic banking sector using game theory models. The simulation is based on a Bayesian game that models the environment of a conflict situation with imperfect information. The result implies that the dominant bank strategy, regardless of the actions of other players, is very aggressive strategy with low risk aversion and therefore the choice of riskier and potentially more profitable portfolio in times of economic prosperity. In addition to the known causes of procyclicality comes into play also the oligopolist rivalry. Conclusion the paper provides is a starting point in the form of open banking cartels (co-operating oligopoly) to coordinate strategy. The goal may be appropriate choice of credit expansion of the banking system (credit restrictions vice versa) with an acceptable profit and risk for banks and manageable terms for borrowers suitable for the economic cycle.
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