Electric power accumulators in system of supplying railways with traction energy by direct current

The article describes core criteria, which define efficient application of energy accumulators in railway traction power supply system. Installation points for energy accumulators in electric power system of train electric drivers, where application is most effective, are identified. These points are railway sub-stations, electric traction network and traction power system. The main types of energy accumulators, which essentially can be used on railway transport in traction power system – traction sub-stations and traction network, electric motive power, are examined. They can be used on railway transport and. The quality factors of work for traction energy power and electric motive power are presented, improvement of which can be performed using energy accumulators. International experience of energy accumulators application for railway transport is presented. Russian developments and implementation of energy accumulators from domestic manufacturers are examined, both in the traction power system and in the electric rolling stock. The polygons for the most efficient use of energy storage in the traction power supplying system are identified.

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Improvement of the regenerating energy accounting system on the direct current railways

Archives of Transport ◽

10.5604/08669546.1185200 ◽

2015 ◽

Vol 36 (4) ◽

pp. 35-42 ◽

Cited By ~ 2

Author(s):

Valeriy G. Kuznetsov ◽

Oleg I. Sablin ◽

Alenka V. Chornaya

Keyword(s):

Power Supply ◽

Practical Importance ◽

Rolling Stock ◽

Accounting System ◽

Quantitative Indices ◽

Energy Accounting ◽

Traction Power Supply ◽

Electric Traction ◽

Regenerative Energy ◽

Traction Power

Purpose. Monitoring of current state of quantitative indices of regenerative energy in the suburban movement, the analysis of the factors influencing its volumes and improvement the principles of the train regenerative energy accounting on the basis of it. Relevance. Development of effective measures of increase the regeneration efficiency of the electric power in system of electric traction demands comprehensive completeness of information on quantitative indices of regeneration energy volumes at all possible levels of its analysis, in particular on the corresponding sections of RS movement that will allow to establish the influence on the level of regeneration of various factors, such as parameters of traction power supply and the organization of train service. As the existing system of the regenerative energy accounting does not allow to consider the specified factors, development of the principles for increasing the efficiency of the analysis of volumes of return energy to a contact line during regenerative braking on DC rolling stock is the actual direction of researches. Collective monitoring of regeneration energy volumes by specialists of locomotive service, power supply and traffic operating departments will be essentially new approach to definition of real factors and taking effective decisions for increasing of using of regenerative energy. Scientific novelty. It’s offered to consider the influence on quantitative indices of regenerative energy the parameters of traction power supply and the organization (sizes) of traffic service on sections. Practical importance. Increasing the efficiency of the regeneration energy accounting is an important element in drawing up the balance of energy for electric traction system, development of the effective methods for improvement of the conditions of regeneration in it and in estimation of its power indicators in general.

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Cophase Power Supply Control Technology in the Application of the Electric Traction Locomotive

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.513-517.3938 ◽

2014 ◽

Vol 513-517 ◽

pp. 3938-3941

Author(s):

Xin Yu Sun

Keyword(s):

Power Supply ◽

Control Technology ◽

Power Development ◽

Traction Substation ◽

Traction Network ◽

Traction Power Supply ◽

Electric Traction ◽

Supply Mode ◽

Power Supply Mode ◽

Traction Power

China's current traction net unilateral power supply mode and the existing traction substation connection and phase change connection determine the existence of stationary phase of traction network. Therefore, the application of modern power electronics and microprocessor control technology and the development of cophase power supply technology with independent intellectual property rights are the way to realize the innovation of traction power supply technology, which will achieve a win-win situation for cophase power and electric power development, it has the vital significance.

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The concept of a hybrid traction power supply system

MATEC Web of Conferences ◽

10.1051/matecconf/201929401014 ◽

2019 ◽

Vol 294 ◽

pp. 01014 ◽

Cited By ~ 1

Author(s):

Viktor Sychenko ◽

Valeriy Kuznetsov ◽

Yevheniy Kosarev ◽

Petro. Beh ◽

Yuriy Sayenko ◽

...

Keyword(s):

Power System ◽

Distributed Generation ◽

Power Supply ◽

Power Supply System ◽

Electric Energy ◽

Supply System ◽

Rolling Stock ◽

Specific Power ◽

Traction Network ◽

Traction Power

The growing shortage of energy resources to provide heavy traffic and high-speed traffic necessitates the development of a new power supply scheme for a traction network using sources of distributed generation of electric energy. Application of asymmetric distributed traction power system with the use of distributed generation allows to increase electric energy efficiency of the feed system of rolling stock, reduce its material capacity and increase the reliability of the functioning of the railway system as a whole. The proposed structure of the hybrid electric traction system involves the creation of a new paradigm aimed at ensuring high demands on the voltage and specific power in the traction network, which will allow to improve the quality and safety of the transportation process when increasing the energy performance indicators. This paradigm will allow to form a new philosophy of building traction power systems. The key elements of this philosophy are decentralization of generation and consumption of electric energy, the use of intelligent electric equipment, distributed power supply management in a single information space of the energy process during transportation. The peculiarity of the proposed work is the optimal combination of technological processes of transmission, consumption of electric energy and transportation, taking into account the specific conditions of functioning of the electrified section: points of connection of power sources and their type, profile of the track, schedule of trains, types of rolling stock and equipment. Conceptually, the hybrid traction power system is an electric hub, in which the inputs are generating points, and the output is the power supply system of the rolling stock. The internal structure of the electric power objects of the hub is determined by the type of transformation and accumulation of electric energy and ways of managing these objects in real time.

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Application of the recurrent mathematical model for estimating the electric-traction NetWare parameters at their dynamic change

Journal of Physics Conference Series ◽

10.1088/1742-6596/2131/4/042071 ◽

2021 ◽

Vol 2131 (4) ◽

pp. 042071

Author(s):

A A Kapkayev

Keyword(s):

Control Systems ◽

Dynamic Change ◽

Rolling Stock ◽

Successive Approximations ◽

Design Stage ◽

Electric Rolling Stock ◽

Traction Power Supply ◽

Electric Traction ◽

And Control ◽

Traction Power

Abstract The article is devoted to the possibility of applying the methods of successive approximations in the analysis of the instantaneous scheme of the electric-traction netware. The described approach makes it possible to improve the accuracy of modeling the dynamic modes of traction power supply sections operation, and also makes it possible to significantly improve the process of modeling diagnostic and control systems for electric rolling stock at the design stage, based on a more accurate model of dynamically changing input parameters of the electric-traction netware, depending on their required level.

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