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## Analiza oddziaływań zakłócających w strefie styku systemów trakcji elektrycznej 3 kV DC i 25 kV 50Hz

### Marek Patoka

#### Abstract

Electrified transport is strongly assorted, due to long term development and use of diversified solutions, particularly in the scope of electrical engineering considering the following aspects: nominal voltage of power supply system, vehicles main circuits and electrical drives. The problem of compatible work of varied railway systems in mutual interaction regions, despite of diverse researches, still appears to remain unsolved. This dissertation presents an analysis of issues concerning railway mutual interaction regions emerging as a consequence of future introduction of new traction power supply system in Poland. The study defines and determines the problem of mutual interaction regions, which appears complex and multistage in traction systems. Issues concerning introducing new traction power supply system into the area of Polish railway infrastructure 3kV DC require examination of phenomena present in the electric power engineering system and in the areas of electrified railway lines. This question was comprehensively depicted in the thesis. The dissertation comprises a review of AC and DC traction power supply systems. The study presents simulation models of traction system electrified with AC and DC voltage, considering subsystems of power supply system, power supply lines, traction substations and electrified railway lines. The study depicts analyses concerning mutual interaction of AC and DC traction substations and interactions of each traction system to the power grid. The thesis includes specifications and examinations of traction voltage changeover areas and parallel work regions. The estimation of voltage unbalance caused by AC traction substations to the power system and its influence on the distortions caused by DC traction substations was examined. The study contains specific software created to support estimation of safe distances between voltage diversified railway lines (from the point of electrocution voltages), concerning the configuration of these systems and environmental conditions in which they function. The dissertation researches galvanic couplings in the ground between 3 kV DC and 600 V DC traction systems through potential analysis in the ground in the average conditions. The thesis concentrates on study case of introducing lines electrified with 25 kV AC voltage into 3 kV DC railway junction.
Record ID
WUT0b4c3aa798ac49198a0da805ff816eac
Diploma type
Doctor of Philosophy
Author
Marek Patoka Marek Patoka,, The Institute of Electrical Machines (FoEE/IEM)Faculty of Electrical Engineering (FoEE)
Title in Polish
Analiza oddziaływań zakłócających w strefie styku systemów trakcji elektrycznej 3 kV DC i 25 kV 50Hz
Language
(pl) Polish
Certifying Unit
Wydział Elektryczny (FoEE)
Discipline
electronic engineering / (technology domain) / (technological sciences)
Status
Finished
Start date
29-06-2011
Defense Date
05-11-2014
Title date
19-11-2014
Supervisor
Pages
177
Keywords in English
railway mutual interaction regions emerging as a consequence of future introduction of new traction power supply system in Poland
Abstract in English
Electrified transport is strongly assorted, due to long term development and use of diversified solutions, particularly in the scope of electrical engineering considering the following aspects: nominal voltage of power supply system, vehicles main circuits and electrical drives. The problem of compatible work of varied railway systems in mutual interaction regions, despite of diverse researches, still appears to remain unsolved. This dissertation presents an analysis of issues concerning railway mutual interaction regions emerging as a consequence of future introduction of new traction power supply system in Poland. The study defines and determines the problem of mutual interaction regions, which appears complex and multistage in traction systems. Issues concerning introducing new traction power supply system into the area of Polish railway infrastructure 3kV DC require examination of phenomena present in the electric power engineering system and in the areas of electrified railway lines. This question was comprehensively depicted in the thesis. The dissertation comprises a review of AC and DC traction power supply systems. The study presents simulation models of traction system electrified with AC and DC voltage, considering subsystems of power supply system, power supply lines, traction substations and electrified railway lines. The study depicts analyses concerning mutual interaction of AC and DC traction substations and interactions of each traction system to the power grid. The thesis includes specifications and examinations of traction voltage changeover areas and parallel work regions. The estimation of voltage unbalance caused by AC traction substations to the power system and its influence on the distortions caused by DC traction substations was examined. The study contains specific software created to support estimation of safe distances between voltage diversified railway lines (from the point of electrocution voltages), concerning the configuration of these systems and environmental conditions in which they function. The dissertation researches galvanic couplings in the ground between 3 kV DC and 600 V DC traction systems through potential analysis in the ground in the average conditions. The thesis concentrates on study case of introducing lines electrified with 25 kV AC voltage into 3 kV DC railway junction.
Thesis file
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Citation count
2

Uniform Resource Identifier
https://repo.pw.edu.pl/info/phd/WUT0b4c3aa798ac49198a0da805ff816eac/
URN
urn:pw-repo:WUT0b4c3aa798ac49198a0da805ff816eac

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