Overview of different concepts of traction drives with regard to high-speed PMSM

Veg, Lukáš; Laksar, Jan; Pechánek, Roman

doi:10.1109/epe.2017.7967236

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…In [1], the use of various concepts of traction drives in the Czech Republic and in the world is discussed and evaluated, the advantages and disadvantages of the new concept and the possibility of using systems with outdated types are evaluated.…”

Section: Literature Reviewmentioning

confidence: 99%

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Improving the Energy Performance of Traction Electric Drive Vehicles in Solving Electric Braking

et al. 2021

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The effectiveness of the electric braking system largely depends on how the braking is carried out, whether the braking characteristics that it forms are acceptable for a given vehicle, how simple and reliable the technical solutions embedded in the system are, and where the braking energy is used. With electric braking, it is possible not only to extinguish the electrical energy on the braking resistor, but also to send it back to the storage device and again use it in traction mode. This paper analyzes the most common methods of electric braking used in electric braking systems for traction electric drives that are in operation on vehicles. As the main criterion for evaluating the method of electric braking, its energy indicators are selected. The results of scientific research of the proposed new method of electric braking, which provides better energy performance and new technical solutions for its implementation, are considered. When implementing this method, DC motors are operated by sequential excitation generators. The current in the field windings is regulated by a DC-DC-converter. Energy in the power circuit is accumulated in storage devices and used in traction mode. When the storage devices are filled, the energy in the power circuit is extinguished by the braking resistor, and the energy from the output of the DC-DC-converter is used for own needs. In this case, braking characteristics are formed as in generators of independent excitation. To increase the braking efficiency at low speeds, it is necessary to smoothly regulate the resistance of the braking resistors by shunting them with transistor switches.

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Section: Literature Reviewmentioning

confidence: 99%

“…In accordance with the scheme of the device, the output current of the DC-DCconverter is equal to 1 .…”

Section: Descriptionmentioning

confidence: 99%

Improving the Energy Performance of Traction Electric Drive Vehicles in Solving Electric Braking

et al. 2021

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“…In [4], various concepts of traction drive in the Czech Republic and in the world are discussed and evaluated, the advantages and disadvantages of the new concept and the possibility of using outdated systems are considered.…”

Section: Analysis Of the Latest Achievements And Publicationsmentioning

confidence: 99%

Analysis of Characteristics of Electric Braking Systems

Herasymenko

Pliuhin

Shpika

2020

MEC

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The technical and energy characteristics of the most commonly used electrical braking systems are analyzed, their disadvantages are indicated. An electrical braking system with variable structure and DC motors with the best technical and energy performance is proposed. In the braking mode, the motors operate in series excitation, and the current in the excitation windings is controlled by a DC-DC converter. Keywords: electric motor, excitation windings, electrical braking, energy performance, high frequency converter.

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“…The traction engine control system of the modernized tram Tatra-3E was considered in the scientific work of V. K. Krivovyaz et al (2009) which allows to increase significantly its electromechanical characteristics and solve the problem of critical wear of the city electric transport fleet. The use of different concepts of traction drives in the Czech Republic and in the world is discussed and evaluated, the advantages and disadvantages of the new concept and the possibility of using systems with obsolete types are evaluated in the scientific work of L. Veg et al (2017).…”

Section: Literature Reviewmentioning

confidence: 99%

Increasing energy performance of urban electric transport

Shpika

Smyrnyi

Herasymenko

et al. 2019

PKG

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In the 21st century new approaches to urban electric transport improvement are required. As a tram is one of the best means of passenger transportation it is essential to enhance its operation. So the aim of this article is to consider improving the energy performance of the electric traction drive of urban electric transport by improving its electrical equipment. The analysis of traction systems of electric trams which are in operation in the cities of Ukraine is carried out, their disadvantages are displayed. A new structure and control algorithms for the electric traction drive system with pulse converters of tram cars are proposed. The structure makes it possible to reduce the number of semiconductor devices in pulse converters and improve the energy performance of the electric traction drive.It allows to reverse tram trajectory without using contact equipment,to provide a smooth field weakening of traction motors, limit the voltage of the traction motors at the nominal level, provide redundancy of the equipment in pulse converters, as well as ensure electric braking. A modernized field attenuation circuit using a DC/DC converter for traction electric motors of sequential excitation is suggested. The results of research are given. The comparative characteristics of various traction drive systems in terms of energy indicators are provided.

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Overview of different concepts of traction drives with regard to high-speed PMSM

Cited by 7 publications

References 6 publications

Improving the Energy Performance of Traction Electric Drive Vehicles in Solving Electric Braking

Improving the Energy Performance of Traction Electric Drive Vehicles in Solving Electric Braking

Analysis of Characteristics of Electric Braking Systems

Increasing energy performance of urban electric transport

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