Energieversorgung elektrischer Bahnen

Biesenack, Hartmut; Braun, E.; George, Gerhard; Girbert, Karl-Heinz; Hofmann, Gerhard; Klinge, Ralf; Puschmann, Rainer; Röhlig, Steffen; Schlechter, Ewald; Schmieder, Axel; Schneider, Egid; Stephan, Arnd

doi:10.1007/978-3-8351-9052-8

Cited by 23 publications

(8 citation statements)

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“…2. Thus, the overhead contact line is protected by means of a multi-step distance protection system (21 relay) with two zones [63,65,66,[68][69][70]. This system is based on the two following premises: (i) the protection needs to be discriminative to ensure that only the two circuit breakers associated with the faulted line section are tripped; (ii) the prospective fault current levels at the SP and CP are progressively smaller and may be lower than rated current.…”

Section: -Kv Ac Rts Protectionmentioning

confidence: 99%

Overview of electrical protection requirements for integration of a smart DC node with bidirectional electric vehicle charging stations into existing AC and DC railway grids

Sánchez-Sutil

Hernández

Tobajas³

2015

Electric Power Systems Research

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Section: -Kv Ac Rts Protectionmentioning

confidence: 99%

Overview of electrical protection requirements for integration of a smart DC node with bidirectional electric vehicle charging stations into existing AC and DC railway grids

Sánchez-Sutil

Hernández

Tobajas³

2015

Electric Power Systems Research

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“…That means within the valid limits the output voltage is freely adjustable [2]. Therefore it is feasible to model the power stations as constant voltage sources.…”

Section: Application Examplementioning

confidence: 99%

“…Railway vehicles may be interpreted as energy sources or sinks that are moving in an inhomogeneous network, see e.g. [2]. The network consists of catenaries or third rails that are supplied by power stations and may or may not be separated in isolated sections.…”

Section: Introductionmentioning

confidence: 99%

The Modeling of Energy Flows in Railway Networks using XML-Infrastructure Data

Heckmann¹,

Streit²

2012

Linköping Electronic Conference Proceedings

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This paper introduces a new Modelica package called RailwaySystem Library that provides the capabilities of simulating the energy flow in electrical railway networks on which a fleet of railway vehicles is running.The focus of the library is set upon the interaction of the vehicle and its energy infrastructure, so that energy management aspects may be investigated from a holistic point of view taking the vehicle and the energy supply by the electric power grid into account. However this intention substantially relies on the provision of reliable data of the infrastructure, on the railway network and its power grid. To this purpose the library refers to an open XML-based data format dedicated to railway IT applications. Furthermore, the library is supposed to be used together with arbitrary component libraries to model the energy subsystems such as the vehicle or the power station.

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“…Capacitor-based reactive power sources (RPS) are an effective means to enhance electrical energy quality in traction power supply systems (TPSS) of AC railroads [1][2][3][4][5][6][7][8][9][10]. Capacitors overloads by higher harmonics (HH) currents are possible due to the presence of significant harmonic distortions in TPSS which are generated by rectifying electromotives.…”

Section: Introductionmentioning

confidence: 99%

Non Sinusoidal Modes of Traction Power Supply Systems Equipped with Reactive Power Compensation

Zakaryukin¹,

Cherepanov²

2019

Proceedings of the International Conference on Aviamechanical Engineering and Transport (AviaENT 2019)

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Rectifier electric locomotives create essential harmonic distortions in tractive electric power supply systems. Because of the higher harmonics, overloads on capacitor banks are possible. Capacitors are a basic element of reactive power sources applied in power supply systems. In case of harmonic increased levels such overloads can lead to out of reactive sources operation. Therefore the task of possible overload prediction has the practical significance. It acquires special relevance when planning the pass of increased mass trains. In article the computer simulation technique allowing to define an capacitor batteries overload in the presence of higher harmonics currents is described. It is shown that the task of overload prediction can be solved by means of nonsinusoidal mode simulation for the schedulable amount of train movement by the methods and means developed at the Irkutsk state transport university. Simulation was carried out by the program Fazonord complex for the tractive power supply system including five inter substation zones of 27.5 kV two-way tractive network section. The received results showed that overloads of capacitor banks can be lowered to acceptable values by means of the protective reactor. In case of reactor switch-off an overload coefficients become unacceptably big. The offered computer simulation technique gives the chance to define capacitor batteries overloads in the presence of a non-sinusoidal curve currents and voltage. Technique application in practice will allow avoiding emergency situations which can lead to failure of the expensive equipment.

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Energieversorgung elektrischer Bahnen

Cited by 23 publications

References 0 publications

Overview of electrical protection requirements for integration of a smart DC node with bidirectional electric vehicle charging stations into existing AC and DC railway grids

Overview of electrical protection requirements for integration of a smart DC node with bidirectional electric vehicle charging stations into existing AC and DC railway grids

The Modeling of Energy Flows in Railway Networks using XML-Infrastructure Data

Non Sinusoidal Modes of Traction Power Supply Systems Equipped with Reactive Power Compensation

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