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Substation model with double busbar system
Kopáček, Petr ; Jurák, Viktor (referee) ; Wasserbauer, Vojtěch (advisor)
The goal of my Bachelor´s Thesis is to rebuild a single busbar medium voltage Switchgear substation model with two sections where one Switchgear cubicle represents the incoming breaker of the busbar section. Furtherly, the goal is to configure the model, test and put it into the operation for laboratory exercise. The base problems for model rebuild are described in the theoretical part which is followed by the description of rebuild for this particular case and solution of control and instruments interlocking configuration using CAP505 program. The updated drawings after the rebuild completion are attached. The conclusion of my Bachelor Thesis summarizes the problems identified during testing and their resolution. Few laboratory exercises are also included in the Thesis.
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Calculation of the network steady state on the voltage level 110 kV
Macháč, Petr ; Vaculík, Petr (referee) ; Mastný, Petr (advisor)
This thesis deals with load flow calculation of electrical network 110 kV before and after the connection to the 70MW gas supply and the 58MW steam and gas supply. This grid can be powered from two 400/110kV substations, namely Sokolnice and Otrokovice. The load flow calculation is realized for the power supply either from Otrokovice or Sokolnice. Furthermore, the calculation of the uni-phase and three phase short circuits in the substations of 110kV network is realized in this thesis. The result of the thesis is the assessment of the voltage ratio in the network, current load of the power line and short circuit resistance of the substations.
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Reconstruction of discharging shakeout machine electric installation
Bednář, Vojtěch ; Blecha, Martin (referee) ; Pazdera, Ivo (advisor)
This Diploma work is concerned with the design of project documentation for discharging shakeout machine electric installation. This work continues in the Semestral project 2 in which the background of a new machine was made. Then, this work deals with the replacement of a switch room with required devices including the design of a new connecting cables and power streams. In the first part, the work deals with the control part of the device and the design of control and signal cables including the product documentation of the device. In the second part, the work deals with the proposal of building electro installation in which a new lighting and its use is described. The last part focuses on the coordination during the realization of a suggested device. In this part, all problems coming from the particular working procedures including a proposal of possible solutions are described. According to the project documentation and following realization, the documentation of final concept reflecting the real status of the device is described.
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Design of a 22 kV network in the Lipno area after the integration of the new 110/22 kV transformer station
Žižlavský, Jakub ; Koudelka, Jan (referee) ; Ptáček, Michal (advisor)
This diploma thesis deals with the design of a new 110/22 kV substation in Horní Planá. The substation design addresses, for example, the issue of reducing the load of surrounding power lines from 110/22 kV substations, reducing the size of short-circuit ratios in the surrounding system, reliability and continuity of supply, etc. Furthermore, loads of individual outgoing feeders from the surrounding substations are analyzed, in case they will be connected to a new substation. Following this, the work also addresses the related new decay points of the lines, which are determined by calculation and simulation in the Grizzly program. The simulation results could be used to compare the current load status of individual lines and contribute to the assessment of the possible benefits of both the new substation and the implementation of other modern technologies for faster and more efficient measurement and handling during operating and fault conditions.
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Management of the energy transmission system polygon
Bohačík, Antonín ; Musil, Petr (referee) ; Blažek, Petr (advisor)
The diploma thesis is focused on the creation of a control interface for a polygon simulating the electrical distribution network of the Czech Republic, where communication between substations is realized by IEC 60870-5-104 protocol. The theoretical part of the thesis explains the basic principles, properties and possibilities of communication standards IEC 60870 and IEC 61850. The next part is focused on the actual implementation and subsequent implementation of the control interface, including the implementation of the IEC 61850-80-1 module for data transfer between the mentioned standards. The last part describes the created behavior scenarios or the analysis of communication itself.
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Graphic Description of Electric Energy System in Selected Areas
Šácha, Tomáš ; Fiala, Zbyněk (referee) ; Paar, Martin (advisor)
The bachelor thesis deals with graphical description of power system for selected areas. Based on publicly available materials and materials provided by E.ON Distribuce, a.s., a graphic description of electricity consumption and performance of selected cities, municipalities and power lines are created. The thesis describes the structure of the power system and its main parameters, including the distribution of networks in terms of their arrangement. It also contains information on the selected municipality from the data provided by the Czech Statistical Office. Graphically processed consumption values, both selected cities and municipalities, as well as selected areas and also electric traction vehicles are shown.
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Assessment of connectivity of the new source to the 110 kV network
Kopečný, David ; Fojtík, Martin (referee) ; Orságová, Jaroslava (advisor)
This thesis focuses on the connectivity problems of the new sources to the electrical network. The first part of the thesis deals with the description of the new source and the method of its connection to the electrical network. Furthermore, in work, there are elaborated the blocking conditions for substation TR Neratovice expanded distribution point. A distribution network operator must receive an attachment application for connecting before the actual connection. The attachments consist of study cases of conjunction that values the inverse influence on the distributional network and informs the operator about the required measures for the reliable service with the new source. PSS Sincal computer software was used to survey the inverse influences on the distributional network. Based on processed data, the evaluation of conjunction of the synchronous generator to the grid at TR Neratovice substation was reconsidered.
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Analysis of parallel operation of nodal areas of 110 kV Krasikov and Neznasov transformers stations
Kostkan, Petr ; Kopička, Marek (referee) ; Ptáček, Michal (advisor)
Currently, the nodal areas of Neznášov substation and Krasíkov substation, which belong to ČEZd distribution network 110 kV – East, are operand as separate units. In the defined setting, each nodal area comprises of two 400/110 kV transformers. In the case of failure of the transformer T401 or T402, the criterion N-1 for twenty percent of the rated output is not met. Such problem can be solved by parallel operation of nodal areas of Neznášov substation and Krasíkov substation. The principal as well as practical aim of this thesis is to interconnect the bridge operated connection in separated areas into parallel/loop operation of nodal areas (supplied by 400/110 kV transformers). Computing software is used to calculate the steady state and short-circuit conditions in the distribution network 110 kV for separate and parallel operation of mentioned nodal areas. Power flow analysis is aimed at assessment and evaluation of voltage conditions, transformers loading (400/110 kV and 110/vn) as well as 110 kV lines loading. Obtained short-circuit indices is used to examine short-circuit, withstand capability of the 110 kV substation. Finally, benefits as well as drawbacks of the separate and parallel operation are compared and evaluated. If necessary, the technical arrangements are proposed/designed in order to allow parallel operation of nodal areas Neznášov substation and Krasíkov substation.
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Substation model with double busbar system
Kopáček, Petr ; Jurák, Viktor (referee) ; Wasserbauer, Vojtěch (advisor)
The goal of my Bachelor´s Thesis is to rebuild a single busbar medium voltage Switchgear substation model with two sections where one Switchgear cubicle represents the incoming breaker of the busbar section. Furtherly, the goal is to configure the model, test and put it into the operation for laboratory exercise. The base problems for model rebuild are described in the theoretical part which is followed by the description of rebuild for this particular case and solution of control and instruments interlocking configuration using CAP505 program. The updated drawings after the rebuild completion are attached. The conclusion of my Bachelor Thesis summarizes the problems identified during testing and their resolution. Few laboratory exercises are also included in the Thesis.
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