Backup power supply of railway transport facilities based on intelligent network technologies

2018 ◽  
Vol 239 ◽  
pp. 01033
Author(s):  
Vasily Cheremisin ◽  
Yury Demin ◽  
Alexander Komyakov ◽  
Vladimir Ivanchenko

The paper is devoted to the development of technology for reducing the consumption and losses of electrical energy of railway transport enterprises on the basis of the concept of “smart enterprise”. A design solution to the monitoring and management system for energy efficiency indicators was proposed; monitored parameters and influencing factors were determined. The application of the simulation model in the MATLAB/Simulink program for determining the set values of the monitored system parameters, namely, power losses and power factor depending on the influencing factors, is considered. The approximating equation is obtained. Specific power losses were calculated for various control options.


2021 ◽  
Vol 2021 (4) ◽  
pp. 601-610
Author(s):  
Iliya A. TEREKHIN ◽  
◽  
Alexander Yu. BALAKIN ◽  

Objective: To assess the possibility of using alternative sources of electrical energy to power auxiliaries of traction substations of power supply divisions on the example of ECHE-20 “Bronevayaˮ. Methods: Alternative energy is used on the railways. Results: Equipment was selected and a solar power plant was designed, economic effi ciency from the introduction of an alternative energy source and its payback period were calculated. Practical importance: The designed alternative source of electrical energy makes it possible to increase the energy effi ciency indicators of production processes of railway transport


2019 ◽  
pp. 36-41
Author(s):  
Kachan Yu ◽  
Kuznetsov V

Purpose. Identify the features of operation of wind farms as an auxiliary supplier of electricity for non-traction consumers of railway networks and analyze the main factors that directly affect the use of wind farms due to the random nature of wind flow and additional factors due to the above conditions in different climates. The research methodology is based on modern methods of computational mathematics, statistics and information analysis using modern computer technology. Findings. The need to use renewable energy sources in the power supply systems of non-traction consumers of railway transport is obvious. Given the constant growth of prices and tariffs for electricity in Ukraine, more and more attention is paid to its savings and the search for the cheapest and most affordable alternative sources. The authors consider issues related to the possibility of using additional generation of electricity in the power supply systems of railway transport through the use of wind turbines, including for non-traction consumers. The analysis of wind flow features in some regions of Ukraine was carried out, and the measurement of wind speed in Zaporizhia and Dnipropetrovsk regions was obtained with the help of a compact wind speed sensor manufactured by Micro-Step-MIS LLC (Russia). The obtained values of wind speed were recorded and stored digitally. The received information of the above device was processed. The authors conclude that in the case of using wind turbines as an additional power source in the networks of non-traction consumers of railway power supply systems it is economically advantageous to connect them directly to these networks and fully use all electricity produced by them, reducing its consumption from this power supply system. The originality is that the use of renewable energy sources in the power supply systems of non-traction consumers of railway transport, in particular wind turbines, is proposed. Practical implications. Introduction of wind power plants as an auxiliary supplier of electricity for non-traction consumers of railway power grids in order to minimize electricity costs. Keywords: renewable energy sources, quality of electric energy, wind power plant, power supply networks of railway transport, non-traction consumers of railway electric networks, electricity production, wind speed.


2019 ◽  
pp. 54-60
Author(s):  
Kachan Yuriy ◽  
Kuznetsov Vitaliy

Purpose. Describe the tools used by the authors for experimental research on the possibilities of using renewable energy sources in the power supply systems of non-traction consumers of railway transport. The methodology of research is based on modern methods of computational mathematics, statistics and information analysis using modern computer technology. Findings. To date, there is no comprehensive approach and specific reasonable measures for the introduction of re-newable energy sources in the energy supply of non-traction consumers. The article presents examples of the introduction of renewable energy sources in the power supply systems of railways abroad. It is noted that when using different renewable energy sources in the power supply systems of non-traction consumers, it is necessary to have a volume of statistical information to determine their technical and economic indicators. The classification of wind power plants with a horizontal axis is given. The schematic diagram and general view of the developed experimental wind power plant are given. The schematic diagram and general view of the developed experimental photovoltaic plant are given. The equipment used for research of wind flow and intensity of solar radiation in places of possible location of wind power or photovoltaic installations is considered. The presented experimental wind power and photovoltaic plants, which serve for a comprehensive study of the possibilities of using wind and solar sources in the power supply systems of non-traction consumers, are generalized and allow to clarify the necessary data for decision making. The originality is the introduction of renewable energy sources in the power supply system of non-traction consumers of railway transport. Practical implications. The use of additional renewable energy sources to supply non-traction consumers minimizes electricity consumption. Keywords: renewable energy sources, quality of electric energy, wind power plant, photovoltaic plant, power supply networks of railway transport, traction and non-traction consumers, electricity production


2017 ◽  
Vol 107 (09) ◽  
pp. 603-609
Author(s):  
S. Weckmann ◽  
D. Schaab ◽  
T. Kuhlmann ◽  
A. Sauer

Im Zuge einer wachsenden Volatilität in der Energieversorgung stehen Industrieunternehmen zunehmend vor der Herausforderung, sich flexibel dem Energieangebot anzupassen. Ein neuer Ansatz für eine industrielle Energieversorgung, die den zukünftigen Anforderungen der industriellen Produktion gerecht wird, ist die Umstellung der klassischen Wechselspannungsversorgung (AC) auf eine Gleichspannungsversorgung (DC). Eine auf diese Weise mit Energie versorgte Produktion bietet zahlreiche Vorteile. Der Einsatz eines intelligenten Netzmanagements ist der „Schlüssel“, um flexibel und robust auf schwankende Netzqualität sowie Energieangebote zu reagieren.   Due to an increasing volatility in the energy supply, industrial companies are faced with the challenge of flexibly adapting their energy consumption to the energy supply. A new approach to an industrial power grid, that meets the future requirements of industrial production, is the conversion of the classic AC power supply to a DC power supply. A DC power supply provides numerous advantages for an industrial plant. Intelligent network management is the key to react flexibly and robustly to fluctuating power quality and energy supply.


2020 ◽  
pp. 86-90
Author(s):  
Alexey Anatolyevich Kovalev ◽  
◽  
Timur Talgatovich Shayukhov ◽  
Sergey Alexeevich Chebakov ◽  
Alexander Takhirovich Sharapov ◽  
...  

The paper considers the analysis of the most important indicators of electric power efficiency in non-tractive power supply systems of railway transport on the example of a specific traction substation feeder. The authors propose variants of solving problems of discrepancy between the indicators and standard requirements. As a result, they discuss the advantages of using the active filter in comparison with other methods of filtering upper harmonics.


2021 ◽  
Vol 19 (1) ◽  
pp. 280-283
Author(s):  
V. A. Sharov

The book under review examines the historical milestones in development of railway transport in the Russian Federation, analyses its rise and main directions of development in the forthcoming period and up to 2030. The authors propose preferable models and methods for decision- making regarding traffic control at the level of stations and sections, describe optimal management decision-making regarding wagon fleet and technology of train and cargo operation, methods and algorithms for decision-making referring to management of locomotive fleet and locomotive crews. Heuristic methods and algorithms for decision-making while solving the problems of forecasting and standardisation of train and cargo operation are studied regarding railway and network dispatching. Methods and models of decision-making ensuring an increase in railway safety are also examined. The examples concern efficient models of decision-making in traffic controlling in the context of network technologies and methods for assessing the economic efficiency of decision-making based on development of intelligent and digital technology.


Author(s):  
K. Jurayeva ◽  
E. Iksar ◽  
I. Khalilova

The article considers the calculation of the modes of occurrence of subharmonic components in traction power supply networks of railway transport, containing traction converters, controlled and uncontrolled rectifiers. The processes of the appearance of harmonic components during the operation of electric locomotives with zone-phase and pulse control using a four-quadrant 4q-S converter in power circuits are considered. Harmonics related to the fundamental and subharmonic components are determined by the harmonic balance method.


2020 ◽  
Vol 1 (4) ◽  
pp. 345-351
Author(s):  
O. V. Bykova

Discussed issues that affect the reliability of various elements of the infrastructure of railway transport, such as the railway track, power supply devices, artificial structures, rolling stock, automation devices, telemechanics and communications. The main technical devices of railway transport are listed. The classification of failures in the operation of technical means of transport is given, depending on their category; classification of technical equipment, the failures of which are subject to obligatory accounting or to be accounted for in cases of their influence on the transportation process in accordance with regulatory documents in force in railways. As a result of working with the initial data on failures that caused train delays, the main services involved in the occurrence of failures in the operation of technical equipment at the Northern Railway training ground were identified; also provides an analysis of failures in the operation of technical equipment in the regions of the Northern Railway. Classifier of the causes of failures in the operation of technical facilities by services and the causes of the occurrence on the Northern Railway, which most failures fall on, is formed; identified the main reasons for the failure of the relevant units of the railway transport. The dependence of the available bandwidth on the reliability coefficient is given.


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