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Electric vehicles as energy storage element for electrical grid
Novák, Martin ; Minařík,, Daniel (referee) ; Baxant, Petr (advisor)
This master´s thesis deals with possibilities of accumulation electric energy with the electric vehicles and their use for electric grid regulation services. In the introduction of this thesis is characterized the current world-wide state of electromobility, including the Czech Republic. Furthermore are summarized main advantages and disadvantages of the expanded involvement of the electric vehicles in the traffic. In the second part if this Master´s thesis the vehicles are divided into three main groups. The third part of the thesis describes the energy storage and generation units used in vehicles. In this part of the script are each of the energy storage parameters compared. The other chapter includes the list of current battery electric vehicles with all their important technical parameters. The fifth chapter summarizes the possibilities of the use of electric vehicles in the Vehicle-to-grid system. This chapter also discusses in detail the ancillary services of the electric grid in the Czech Republic. In the last part of this Master´s thesis there is calculated an economical potential of electric vehicles providing the primary and secondary regulation.
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Modeling of energy flows in the municipality with battery systems
Řehořek, Tomáš ; Krátký,, Milan (referee) ; Paar, Martin (advisor)
This thesis studies battery systems and possibilities of their utilization together with PV systems mainly for domestic purposes. Furthermore, the thesis deals with the impact of increased number of BEVs on load demand. The aim of the thesis is to simulate and investigate the power flows, within a selected grid, with high levels of PV generation paired with battery systems. The calculation of the power flows is performed in OpenDSS and the input data for the simulations are generated in Matlab. The theoretical part of the thesis describes the technology of the battery systems and how they operate. The thesis also partly touches on the use of battery systems for grid applications. In the practical part, an evaluation of simulations investigating the capability of battery systems to limit peaks of surplus generated energy is performed. As well as that the impact of increased load caused by BEV charging and the possibilities of reduction of this load via use of battery systems is also investigated.
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Battery Systems for Distribution Networks
Filip, Robin ; Radil, Lukáš (referee) ; Paar, Martin (advisor)
Bachelor’s thesis is focused on problematics of battery storage systems in distribution network. The thesis introduces methods of electrical energy storage with emphasis on battery storage systems. It also deals with possibilities of using these systems in the network. Additionally, an overview of current and planned projects with a description of the legislative environment of the area in the Czech Republic is included. The practical part deals with the design of battery storage capacity regarding to development of power consumption, electromobility as well as photovoltaics.
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Infrastructure for electromobility
Smutková, Karolína ; Böhm, Michael (referee) ; Štětina, Josef (advisor)
This thesis deals with the issue of charging electric vehicles, including a number of sub-questions. It provides an overview of current charging stations, connectors, communication between vehicle and charger during charging and of the resulting price for charging. It also takes into account the need for large amounts of energy mostly from renewable sources, coupled with battery storage facilities. The last point is a comparison of current electric vehicles mainly by battery capacity, price and range. The whole thesis is primarily related to the territory of the Czech Republic.
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Analysis of Smart Grid devices
Kolacia, Tomáš ; Šlezingr, Jan (referee) ; Radil, Lukáš (advisor)
This work deals with smart grids and smart metering in power grids. The first part of the thesis is focused on the comparison between classic topology of electrical grid and smart grid concept including the benefits, which could be achieved. The other parts of smart grid concept are described as well, such as energy storage and electromobility including charging points infrastructure. The second part of the thesis deals with smart metering devices and it describes routing protocols for smart grids. The following chapters summarize practical experience with addressed issues in Europe and in the Czech Republic. The last part is dedicated to evaluation of smart metering implementation in the Czech Republic.
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Prospects for electric individual transport
Skoupý, Martin ; Strecker, Zbyněk (referee) ; Mazůrek, Ivan (advisor)
The aim of the thesis was to create a complex summary of the possibilities of the use of electric vehicles in individual transport, identification of the problems connected with the implementation of electromobility and listing the possibilities of their solutions. The thesis therefore dealt with the benefits in terms of emissions production, with the capacity of infrastructure or the trends in transportation. The need of the changes in the system of transportation was concluded based on the gathered information, i.a. greater use of lighter vehicles or shared transport. At the same time, more measures will need to be taken in the field of electricity production, which is still largely dependent on fossil fuels.
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The use of soft computing as support for business decision-making
Pekárek, Jan ; Jašek, Roman (referee) ; Lenort, Radim (referee) ; Zinecker, Marek (referee) ; Dostál, Petr (advisor)
The presented dissertation deals with the problem of deploying the charging infrastructure for electric vehicles in the Czech Republic. The core of the thesis is a mathematical optimization model, which is implemented in the language of MATLAB computing software. The model consists of several sub-units representing separate models of studied sub-problems. The individual chapters of the work describe successively these sub models. The sub models are: demand model of the charging service, model of charging supply, charging simulator model, optimization model and its resolving optimization method. The optimization model is accelerated by parallelization on the graphics card. The optimization method is designed as a case-specific implementation of genetic algorithms on a population of tree-structured individuals. The final chapter deals with an economic aspect of the problem under consideration, the implications of the findings and the role that the optimization model plays in the context under consideration. The main benefit of the work lies in the formulation of the problem as a mathematical model, the accompanying analyses and the provided justifications. Any user with updated data can then use this work along with the attached scripts to find answers to questions about the relationship between electromobility and the charging infrastructure.
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Impact of massive electromobility on the Czech Republic
Řeha, David ; Vančura, Jan (referee) ; Hejtmánek, Petr (advisor)
This bachelor thesis deals with the impact of the massive development of electromobility in the Czech Republic. Its importance is compounded by the fact that there are more and more speculations about the sustainability of our planet's development. This document describes the current state of electromobility, the state's position on this issue and the prediction of the number of these vehicles. It also analyzes the impact of a gradual increase of electric cars and the impact of using only electric vehicles, in terms of energy, where a large increase in electricity production and consumption is expected, ecological, where emissions are expected to decrease, and economic, where an increase of investment is expected and a decrease in state budget revenues.
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Power Systems Ranges of Main Parameters
Řehořek, Tomáš ; Gála, Michal (referee) ; Paar, Martin (advisor)
The thesis deals with description of the power system, parameters of it’s components and the range of outputs and consumption. In the first part the structure of the power system is described as well as the fundamental division of electric grids. In this part the work also touches on the ways of supllying the elctric traction. Furthermore the amount of production and consumption is mentioned. In the second part this work focuses on description of selected components of the power system and their real parameters. Furthermore the work also touches on the matter of electromobility and battery energy storage systems. In the last part of this work a few simple methods of consumption estimation are presented. This work also includes two infografics, that describe the power system.
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