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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 so-called 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.
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Electrical system designs of the hotel complex with wellness
Veselý, Vít ; Bátora, Branislav (referee) ; Ptáček, Michal (advisor)
The bachelor thesis deals with the implementation of the technical solution - the distribution of the electrical network of the hotel with wellness. The theoretical part of the thesis presents an analysis of the basic elements used for the design of substations and busbars and introduces the basic computational apparatus for sizing transformers and lines. The practical part presents the various technical solutions for the design of the electrical network of the site, specifically addressing the design of low voltage (LV) cable lines for two variants providing 100 % backup of the electrical supply to the site and two other variants providing 50 % backup. In addition to the technical design of the individual options, the work also presents for each option their detailed financial budgets, including their overall economic comparison.
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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.
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Application of the risk index matrix principles to electric power distribution system elements
Bruzl, David ; Hála, Vojtěch (referee) ; Ptáček, Michal (advisor)
The master thesis deals with the evaluation of the use of the risk index matrix (RIM) principle for distribution system elements. It evaluates the current use of RIM in EG.D, a.s., examines the individual RIM inputs and also reveals the bottlenecks. An updated method of assigning elements to the RIM is proposed that addresses the problems described and is also generally applicable to other distribution system elements at medium and low voltage levels. At the same time, a sensitivity analysis is performed to investigate the influence of different factors on the RIM and to verify the stability of the categorization of the resulting RIM. The thesis also serves as a methodology for assigning elements to the RIM and includes recommendations for the distribution system operator (DSO).
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Use of the MAWIS Photo solution for data collection and creation of 3D building models
Viktorin, Tomáš ; Wasserbauer, Vojtěch (referee) ; Ptáček, Michal (advisor)
This bachelor thesis deals with the use of the MAWIS Photo service for data collection and creation of 3D models with a specific focus on cable routes. In this context, the thesis provides a basic overview of the legislation and technical standards relevant to the implementation of projects and the control of cable route construction. It also focuses on a detailed description of the MAWIS Photo web application, including it`s usability, basic principles of operation, advantages and disadvantages. The thesis also discusses GIS systems and surveying in relation to energy construction. In the practical part of the thesis, the applicability of the application in practice is verified, specifically the description of the measured cable route, measurements, creation of a 3D model of the structure, subsequent creation of drawing documentation and evaluation of the achieved results. Following the direct experience gained with the use of MAWIS Photo application, the thesis also provides a critical evaluation of the applicability of the application itself in the practice of power structures.
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Design of technical measures in LV distribution network with a high value of short-circuit currents
Šmehlík, Daniel ; Bátora, Branislav (referee) ; Ptáček, Michal (advisor)
This bachelor thesis discusses the sizing and the possibility of reducing large short circuit ratios. For a specific scheme of an industrial building, which will be fed from three transformers, the sizing will be done by means of the SICHR program. The specific objective of the technical solution is to be able to use modular circuit breakers with a ripping capability of short-circuit currents up to 10 kA in the terminal switchboards. Another objective of the work is to perform an economic evaluation of the proposed solution, or to optimize the design from the point of view of the economic aspect in meeting the technical requirements.
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Comparison of free available software for the calculation of electric network parameters
Dvořák, Radim ; Janík, Daniel (referee) ; Ptáček, Michal (advisor)
The aim of this bachelor thesis is to compare freely available software for calculating the parameters of electrical networks. The first part is used to give an idea how to operate in the programs Sichr, DOC, Spider (xSpider) and ~ SIMARIS design and their evaluation in terms of usability, requirements, graphical interface and controllability. Furthermore, a technical analysis of specific topologies of specified distribution networks is performed in the work. In the second part, the calculation of network parameters was performed using the SW above. Finally, the realized calculations of voltage drops and short-circuit currents using individual programs were compared with each one another.
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Aging curves of elements of the distribution network
Bočan, Tomáš ; Malínský, Vladimír (referee) ; Ptáček, Michal (advisor)
The bachelor thesis deals with the evaluation of the current methodology, provided by the client EG.D, a.s., for the creation of aging curves of distribution system elements, specifically the evaluation of the provided input data, from which a new methodology is subsequently created. The new methodology is applied to the high voltage support points and compared with the original methodology. The paper also includes an analysis of the ageing of distribution system elements and its application to each regional distribution network operator, as an important illustrative and general overview to better understand the individual context.
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Island operation of the waste to energy facility
Doležal, Václav ; Paar, Martin (referee) ; Ptáček, Michal (advisor)
The purpose of this bachelor’s thesis is mainly a technological explanation of, be it present-day or potentionally future, possibilities of waste-to-energy facilities technology in Czech Republic and explanation of technological devices used in SAKO Brno institution for successful transition to island mode operation. A significant part is a research on the role of the discussed waste-to-energy facilities during power recovery in distribution network, while taking into consideration the ability to transition to the island mode operation, thanks to which it can hold an important position during the process and the analysis of a possible scenario of black-out, that the waste-to-energy facilities of SAKO Brno company couldn’t cross over to island mode operation, based on the results of the black system event that took place in the year 2013.
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