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Super Grids Conception
Chodura, Przemysław ; Prokop, Václav (oponent) ; Paar, Martin (vedoucí práce)
The aim of bachelor’s thesis “Super Grids Conception” is to provide complex overview of Super Grids topic in terms of describing the background, concept itself, available technology, experience and further development, possible energy sources and particular concepts and studies. In the beginning, reasons which lead to need of next-gen electrical grids are identified in global goal to reduce environmental impact of power generation, growing electricity demand and emerging need to integrate renewable energy sources. Possible energy sources of the future are discussed in broader context as well as in sense of current limitations and further development. In second part, concepts of Smart Grids, Super Grids and SuperSmart Grids are described focusing on benefits, basic principles and systemic point of view. The author then elaborates on Super Grids Conception. HVDC and HVAC technologies are compared from technical and economical point of view, resulting typical usage is mentioned. Later a detailed overview of state-of-the-art HVDC systems technology is provided, including basic principles and design, components description, limitations of available technology, practical experience and possible development areas. Challenges in HVAC field towards Super Grids are introduced, as well as the issues related to hybrid AC/DC corridors and lines. In the last part, differences in historical development and present attitude between different parts of the world are explained. Considered Super Grid conceptions are introduced with special aim to visionary DESERTEC Foundation Concept and techno-economic study OffshoreGrid.
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Design of protection system using an sensor technology in MV substation
Strapko, Miroslav ; Prokop, Václav (oponent) ; Topolánek, David (vedoucí práce)
Master's thesis deals with use of electronic instrument transformers (sensors) in the protection system in medium-voltage substation. Substation consists of 2 incoming feeders, 2 outgoing feeders for motors, 2 outgoing feeders for power transformers, measuring, bus coupler and bus riser feeder. Incoming feeders are connected to distribution system E.ON by cable lines which were proposed. Protected machines (power transformers and motors with rated power) are connected to switchgear panels of UniGear ZS1 type by cable lines too. Proposed protection system is based on the short-circuit conditions, standard CSN 33 3051 recommendations as well as theoretical backgrounds acquired from technical papers and other publicated literature according to the bibliography. For selected protection functions are defined their parameters. Control, monitoring and protection functions provides REF 542plus relay. Consequently, secondary tests which are part of the commissioning, are given in the practical part of thesis. Secondary tests were performed by relay test system FREJA 300 by Megger. Results of tests are displayed in tripping characteristics.
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Super Grids Conception
Chodura, Przemysław ; Prokop, Václav (oponent) ; Paar, Martin (vedoucí práce)
The aim of bachelor’s thesis “Super Grids Conception” is to provide complex overview of Super Grids topic in terms of describing the background, concept itself, available technology, experience and further development, possible energy sources and particular concepts and studies. In the beginning, reasons which lead to need of next-gen electrical grids are identified in global goal to reduce environmental impact of power generation, growing electricity demand and emerging need to integrate renewable energy sources. Possible energy sources of the future are discussed in broader context as well as in sense of current limitations and further development. In second part, concepts of Smart Grids, Super Grids and SuperSmart Grids are described focusing on benefits, basic principles and systemic point of view. The author then elaborates on Super Grids Conception. HVDC and HVAC technologies are compared from technical and economical point of view, resulting typical usage is mentioned. Later a detailed overview of state-of-the-art HVDC systems technology is provided, including basic principles and design, components description, limitations of available technology, practical experience and possible development areas. Challenges in HVAC field towards Super Grids are introduced, as well as the issues related to hybrid AC/DC corridors and lines. In the last part, differences in historical development and present attitude between different parts of the world are explained. Considered Super Grid conceptions are introduced with special aim to visionary DESERTEC Foundation Concept and techno-economic study OffshoreGrid.
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Design of protection system using an sensor technology in MV substation
Strapko, Miroslav ; Prokop, Václav (oponent) ; Topolánek, David (vedoucí práce)
Master's thesis deals with use of electronic instrument transformers (sensors) in the protection system in medium-voltage substation. Substation consists of 2 incoming feeders, 2 outgoing feeders for motors, 2 outgoing feeders for power transformers, measuring, bus coupler and bus riser feeder. Incoming feeders are connected to distribution system E.ON by cable lines which were proposed. Protected machines (power transformers and motors with rated power) are connected to switchgear panels of UniGear ZS1 type by cable lines too. Proposed protection system is based on the short-circuit conditions, standard CSN 33 3051 recommendations as well as theoretical backgrounds acquired from technical papers and other publicated literature according to the bibliography. For selected protection functions are defined their parameters. Control, monitoring and protection functions provides REF 542plus relay. Consequently, secondary tests which are part of the commissioning, are given in the practical part of thesis. Secondary tests were performed by relay test system FREJA 300 by Megger. Results of tests are displayed in tripping characteristics.
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