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1

Passenger accumulator fed railcars in regional railway traffic

Doleček R., Černý O., Mlynařík L., Sýkora P.

Transport Problems

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2015

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T. 10, z. 2

99--107

EN

This paper is focused on contemporary posibilities of replacement diesel-powered railcars by accumulator powered railcars in regional railway traffic. In the first part of the paper, there are described advantages and disadvantages of this replacement. In the second part are presented the simulation counts and the simulation results of the drive of an accumulator powered railcar on the railway line Šumperk - Kouty nad Desnou. At the last part of this paper is shown the experimental accumulator powered railcar, which was built at University of Pardubice, and the energy research, that is realized with this railcar at railway line Mladějov na Moravě - Hřebeč.

DE

Dieses Beitrag ist auf zeitgenössische Möglichkeiten Ersatz Diesel-Triebwagens durch den Akkumulator Triebwagens im Regionaleisenbahnverkehr ausrichtet. Im ersten Teil des Beitrages gibt es beschriebenen Vorteile und Nachteile dieser Ersatz. Zweiten Teil präsentiert die Simulations zählt und die Simulation Ergebnisse der Antrieb eines Akkumulators angetrieben Triebwagen auf der Bahnstrecke Šumperk - Kouty nad Desnou. In der letzten Teil dieser Arbeit ist die experimentelle Akkumulator betrieben Triebwagen, die an der Universität Pardubice gebaut wurde, gezeigt und der Energieforschung, dass mit dieser Triebwagen auf Eisenbahnlinie Mladějov na Moravě - Hřebeč realisiert ist.

2

The conception of the experimental rail vehicle

Doleček R., Černý O.

Archives of Materials Science and Engineering

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2013

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Vol. 60, nr 2

82--86

EN

Purpose: The article deals with the advance configuration and the installation of vehicle components to the experimental rail vehicle powered by the traction battery. Particularly the paper focus on the research problems of the construction of the experimental rail vehicle (bogie), the structure of electrical equipment of experimental rail vehicle (traction drive, control system, power supply system and the research problems of the influence between the different systems placed on the experimental rail vehicle are mentioned as well. Design/methodology/approach: The design of the experimental rail vehicle which has a foursome mechanically independent drives and each drive has own DSP controller, is specific. The mentioned configuration ensures the coordination of the traction forces between traction drives, which create one bogie with independently rotating wheels, provides the necessary energy flows. For the reason of the effects of the control to running characteristics the experimental rail vehicle has a lot of sensors and the other measuring devices. Findings: The problems of EMC - influence elimination of traction drive with PMSMs, control and measurement are solved. The sophisticated structure of the conception of the vehicle, which is expected to minimization of influence to the sensitive precision measuring equipment from, was designed during the development of the experimental rail vehicle (the minimization was achieved by LCD and LC filter modules). Research limitations/implications: The vehicle with four PMSMs form the whole traction vehicle drive with the total nominal power of 5 kW because of the budget is limited. Originality/value: The special conception of rail vehicle, which is mechanically designed by Rolling Stock Research Institute, is constructed at the JPTF for the purposes of experimental research on vehicles with independently rotating wheels.

3

Problems of power-supply system of 25 kV, 50Hz at present

Doleček R., Černý O.

Prace Naukowe Politechniki Warszawskiej. Transport

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2007

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z. 63

43-49

EN

The paper deals with behaviour of traction power-supply system of 25 kV, 50 Hz at Czech Railways. The main problem is explanation of transient effects during short-circuits at various lengths of contact linę of conneetion structures. These effects can arise during failure in traction circuit. The goal is an adjustment protection design of traction circuit. Simulation diagrams have been created. This design can be utilisable for the feeding station with filter-compensation device which is designed for EMI rcduction.

PL

Artykuł poświęcony jest zachowaniom systemu zasilania trakcyjnego 25kV, 50Hz. stosowanego, w kolejach Czeskich. Głównym problemem jest wyjaśnienie efektów stanów nieustalonych występujących podczas zwarć w sieciach o różnej strukturze i różnych długościach odcinków zasilania. Te efekty mogą powstać podczas uszkodzenia w obwodzie trakcyjnym. Celem badań jest dostosowanie zabezpieczeń w sieci trakcyjnej. Zostały stworzone diagramy symulacyjne. Projekt może być przydatny dla stacji zasilających z zastosowanymi filtrami kompensacji zakłóceń EMI.