
Proposal of measures in the low voltage network for the implementation of renewable sources and electromobility according to scenarios NAP SG
Vojtěch, Jan ; Kučera, Michal (referee) ; Ptáček, Michal (advisor)
The thesis analyzes legislative and strategic documents of the European Union and the Czech Republic which set targets in environment and energy area in 2030, alternatively in 2040. The individual chapter is dedicated to national action plans, where the most important is National Action Plan for Smart Grids setting specific requirements for future development of smart grids. The thesis contains analysis of distribution network in the municipality of Následovice and simplifying assumptions for the implementation of calculation. There are also introduced scenarios which have been used for the calculation of the distribution network with its results. Potential defects of the distribution network are commented with suggested solutions. The calculations were repeated to verify the solutions. Results are recapitulated in an individual chapter. Graphical outputs of the calculations can be found in the attachement.


Overview of the Current State of the Art of Existing Energy Community Concepts in Europe and their Possible Implementation in the Czech Republic
Vojtech, Jan ; Ptacek, Michal
This paper presents an overview of the current stateof the art of energy communities in Europe and discusses realexamples/concepts implemented in some countries that fulfill theissued EU directives by different technical ways. Therefore,it brings socalled allocation keys used in the individual energycommunity concepts for the distribution of produced energybetween consumers and shows the important differences of thesekeys and their impacts (benefits/disadvantages) for consumersor distribution system operators, so distribution tariffs and thefuture evaluation of allocation keys are also presented.Furthermore, there is the discussion which energy communityconcepts (implemented in European countries) or their specificparts can be transferred to the Czech Republic, especially in thecontext of the current laws and their preparations.


Evaluation of the energy community concept in the Czech Republic conditions
Vojtěch, Jan ; Galík, Tomáš (referee) ; Ptáček, Michal (advisor)
The thesis is divided into six main parts. The first part deals with the description of European directives, regulatory instruments, and support instruments in the field of energy communities in the countries of the European Union, specifically Austria, Germany, France, and Spain. The second part is devoted to a study predicting the future development of domestic decentralized sources and their installed capacity potential. The third part deals with the current legislative state of domestic energy communities, including an outline of the possible future form of energy communities. The fourth part deals with the description of usable allocation keys and the differences between them, as well as distribution tariffs of the public distribution network and their possible adjustments and discounts related to energy communities. The fifth part deals with the description of the model and the scenarios used for its analysis, including the presentation of the results and the impact on distribution tariffs. The last part presents recommendations for distribution system operators, the Energy Regulatory Office and for energy communities.

 

Proposal of measures in the low voltage network for the implementation of renewable sources and electromobility according to scenarios NAP SG
Vojtěch, Jan ; Kučera, Michal (referee) ; Ptáček, Michal (advisor)
The thesis analyzes legislative and strategic documents of the European Union and the Czech Republic which set targets in environment and energy area in 2030, alternatively in 2040. The individual chapter is dedicated to national action plans, where the most important is National Action Plan for Smart Grids setting specific requirements for future development of smart grids. The thesis contains analysis of distribution network in the municipality of Následovice and simplifying assumptions for the implementation of calculation. There are also introduced scenarios which have been used for the calculation of the distribution network with its results. Potential defects of the distribution network are commented with suggested solutions. The calculations were repeated to verify the solutions. Results are recapitulated in an individual chapter. Graphical outputs of the calculations can be found in the attachement.


Extreme Value Theory in Operational Risk Management
Vojtěch, Jan ; Kahounová, Jana (advisor) ; Řezanková, Hana (referee) ; Orsáková, Martina (referee)
Currently, financial institutions are supposed to analyze and quantify a new type of banking risk, known as operational risk. Financial institutions are exposed to this risk in their everyday activities. The main objective of this work is to construct an acceptable statistical model of capital requirement computation. Such a model must respect specificity of losses arising from operational risk events. The fundamental task is represented by searching for a suitable distribution, which describes the probabilistic behavior of losses arising from this type of risk. There is a strong utilization of the PickandsBalkemade Haan theorem used in extreme value theory. Roughly speaking, distribution of a random variable exceeding a given high threshold, converges in distribution to generalized Pareto distribution. The theorem is subsequently used in estimating the high percentile from a simulated distribution. The simulated distribution is considered to be a compound model for the aggregate loss random variable. It is constructed as a combination of frequency distribution for the number of losses random variable and the socalled severity distribution for individual loss random variable. The proposed model is then used to estimate a fi nal quantile, which represents a searched amount of capital requirement. This capital requirement is constituted as the amount of funds the bank is supposed to retain, in order to make up for the projected lack of funds. There is a given probability the capital charge will be exceeded, which is commonly quite small. Although a combination of some frequency distribution and some severity distribution is the common way to deal with the described problem, the final application is often considered to be problematic. Generally, there are some combinations for severity distribution of two or three, for instance, lognormal distributions with different location and scale parameters. Models like these usually do not have any theoretical background and in particular, the connecting of distribution functions has not been conducted in the proper way. In this work, we will deal with both problems. In addition, there is a derivation of maximum likelihood estimates of lognormal distribution for which hold F_LN(u) = p, where u and p is given. The results achieved can be used in the everyday practices of financial institutions for operational risks quantification. In addition, they can be used for the analysis of a variety of sample data with socalled heavy tails, where standard distributions do not offer any help. As an integral part of this work, a CD with source code of each function used in the model is included. All of these functions were created in statistical programming language, in SPLUS software. In the fourth annex, there is the complete description of each function and its purpose and general syntax for a possible usage in solving different kinds of problems.
