Wyniki wyszukiwania - BazTech

1

New technical solutions of using rolling stock electrodynamical braking

Liudvinavičius L., Lingaitis L.

Transport Problems

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2009

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T. 4, z. 2

23-35

EN

The paper considers some theoretical and practical problems associated with the use of traction motor are operating in the generator mode (in braking). Mathematical and graphical relationships of electrodynamic braking, taking into account the requirements raised to braking systems in rail transport are presented. The latter include discontinuity of braking process, braking force regulation, depending on the locomotive speed, mass, type of railway and other parameters. Schematic diagrams of the locomotive braking and ways of controlling the braking force by varying electric circuit parameters are presented. The authors suggested contact-free regulation method of braking resistor for controlling braking force in rheostatic braking, and resistor parameters regulate with pulse regulation mode by semiconductor devices, such as new electrical components for rolling stock - IGBT transistors operating in the key mode. Presenting energy savings power systems, which are using regenerative braking-returning energy and diesel engine or any form of hybrid traction vehicles systems, circuit diagrams, electrical parameters curves.

2

Locomotive energy savings possibilities

Liudvinavičius L., Lingaitis L.

Transport Problems

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2009

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T. 4, z. 3, cz.1

35-41

EN

Economic indicators of electrodynamic braking have not been properly estimated. Vehicles with alternative power trains are transitional stage between development of pollution- free vehicles. According to these aspects the investigation on conventional hybrids drives and their control system is carried out in the article. The equation that allows evaluating effectiveness of regenerative braking for different variants of hybrid drive are given. Presenting different types of locomotive energy savings power systems, which are using regenerative braking energy any form of hybrid traction vehicles systems, circuit diagrams, electrical parameters curves.

3

Kilka uwag na temat rekuperacji w trakcji elektrycznej

Dąbrowski J.

Nowa Elektrotechnika

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2008

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nr 12 (52)

10--13

4

Efektywność odzysku energii hamowania elektrodynamicznego w komunikacji miejskiej

Czucha J., Karwowski K., Mizan M., Pazdro P.

Przegląd Elektrotechniczny

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2004

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R. 80, nr 10

1016-1019

PL

W referacie przedstawiono metodę aktywnego sterowania ruchem pojazdów komunikacji miejskiej dla zwiększenia wykorzystania energii hamowania zwracanej do sieci. Przedstawiono wyniki badań eksperymentalnych w metrze i komunikacji tramwajowej oraz analizy teoretycznej z wykorzystaniem komputerowych metod modelowania i symulacji. Wskazano nisko inwestycyjne możliwości realizacji dynamicznego konstruowania rozkładu jazdy, aby w maksymalnym stopniu skojarzyć w czasie procesy rozruchów i hamowania pojazdów.

EN

The paper presents the method of the active traffic control in urban transport to maximise the utilisation of recuperated braking energy. It was investigated by the experiments in metro and tramway service, and by theoretical analysis in which the computer methods of modeling and simulations were used. The proposed algorithms of traffic control might be used without high investments cost to dynamic designed timetable by correlation of processes starting and braking the vehicles.