scholarly journals Ways to improve operation reliability of traction electric motors of the rolling stock of electric transport

2017 ◽  
Vol 5 (8 (89)) ◽  
pp. 22-30 ◽  
Author(s):  
Tatyana Pavlenko ◽  
Vyacheslav Shavkun ◽  
Aleksandr Petrenko
Keyword(s):  
Rolling Stock ◽  
Electric Transport ◽  
Electric Motors

scholarly journals DEVELOPMENT OF ALGORITHMIC MODELS FOR RESEARCH OF RELIABILITY PARAMETERS OF TROLLEYBUS TRACTION ELECTRIC MOTORS IN THE OPERATION PROCESS

2020 ◽  
Vol 2 ◽  
pp. 39-46
Author(s):  
Vyacheslav Shavkun ◽  
Tatyana Pavlenko ◽  
Olha Kozlova
Keyword(s):  
Block Diagram ◽  
Rolling Stock ◽  
Diagnostic Tools ◽  
Electric Transport ◽  
Electric Motors ◽  
Reliability Indicators ◽  
Reliability Parameters ◽  
Operational Factors ◽  
Reliability Of Operation ◽  
Algorithmic Model

The analysis of the reliability parameters of traction engines during the operation of trolleybuses in different modes is done. The presented groups of operational factors are lead to the emergence of censored samples. The methods of express analysis of engine reliability using technical diagnostic tools are determined. A block diagram of an algorithmic model for studying the reliability parameters of traction electric motors of trolleybuses during operation has been developed. It allows at any time to evaluate the influence of operational factors on the reliability indicators of traction electric engines and to more clearly and reasonably assign organizational, technical and preventive measures. It has been established that the effective and reliable operation of urban electric transport, in particular trolleybuses, depends on the reliability of individual components and assemblies of rolling stock, as well as on the quality and timely control of their parameters during operation. In practice, it has been proved that failure of traction electric motors (TEM) of trolleybuses leads to significant material losses at electric transport enterprises. And one of the main parameters of reliability of traction electric motors of trolleybuses is the reliability of operation during operation. Based on the research results, practical recommendations are developed on the rational choice of diagnostic parameters. Their implementation at electric transport enterprises will increase the reliability of traction electric motors as a whole up to 10 %. The developed methodology allows the study (assessment) of the reliability parameters of any type of traction engine of a trolley during operation

scholarly journals Effect of transient processes on the switching stability of dc machines

2018 ◽  
Vol 239 ◽  
pp. 01036 ◽  
Author(s):  
Viktor Kharlamov ◽  
Pavel Shkodun ◽  
Andrey Ognevsky
Keyword(s):  
Magnetic System ◽  
Significant Proportion ◽  
Electrical Energy ◽  
Operating Conditions ◽  
Fine Tuning ◽  
Transient Processes ◽  
Rolling Stock ◽  
Electric Motors ◽  
Electric Rolling Stock ◽  
Switching Stability

Effective use of fuel and energy resources is one of the main tasks in modern industry and transport. The main directions of increasing the energy efficiency of the electric rolling stock of railways are considered in the paper. For the electric rolling stock of railways, a significant proportion of electric power consumption falls on traction needs. The consumption of electrical energy and its recovery directly depends on the proper operation and fine-tuning of the magnetic system and switching of traction electric motors of the rolling stock. The methods of testing traction electric motors currently used in railway transport do not fully correspond to their operating modes during operation. For more reliable control of their condition, a methodology for estimating the nature of the operation of traction electric motors in conditions close to real ones was proposed. Studies of the influence of transient processes on the quality of switching of traction electric motors taking into account operating conditions are carried out. Based on the results of the study, the analysis of the data obtained is carried out, and a criterion for estimating the switching stability of traction electric motors in transient operation modes is proposed. The proposed criterion allows carrying out quality control of the tuning of the magnetic system and switching of the traction electric motor, and also estimating the nature of its operation in various modes, taking into account the operating conditions.

scholarly journals OVERVIEW OF DISTANCE ENERGY TRANSMISSION MEANS FOR POWERING AGRICULTURAL MACHINERY TAKING INTO ACCOUNT FACTORS AFFECTING HUMAN SAFETY

2021 ◽  
Vol 4 (164) ◽  
pp. 10-13
Author(s):  
V. Halil ◽  
S. Zakurdai ◽  
V. Scurikhin ◽  
O. Donets ◽  
D. Zubenko
Keyword(s):  
Combustion Engine ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Electric Transport ◽  
Electric Motors ◽  
Agricultural Machinery ◽  
Transport Equipment ◽  
Agricultural Equipment ◽  
Electric Traction ◽  
The Impact

This article discusses the issues of autonomous operation of electrical agricultural equipment based on the transmission of electricity over a distance. The main point of this article is that tractors that work in the field are driven by electric motors, with the need to use expensive batteries. The issues of the impact and safety of this technology on the environment and humans are considered. The main problem of the creation, maintenance and operation of transport equipment, including agricultural equipment, is the high cost of maintenance and fuel, which are constantly increasing. In addition, the environmental problem, which has become so acute in recent years, global warming, the fuel crisis and the need to transfer all transport equipment to electric traction, make us look for new ways to solve the problem of environmental pollution and save resources, especially non-renewable energy sources. The use of electrical energy for traction of agricultural machinery that work in the fields or in other industries has been used for a long time, and in the early stages of the development of transport, it was electric transport that occupied the main part, before the invention of the internal combustion engine. Including at the Kharkov Tractor Plant there were developments (and still are), a prototype of the use of electric motors as the main unit for movement. Based on the above, it is obvious that electric traction for transport is obviously environmentally friendly and safe, although there are a number of limitations in this matter as well, but the unresolved problems of the limited use of the storage battery force us to look for new sources of energy. This article proposes to consider the possibility of using electric traction for agricultural machinery with the supply of operating tractors in the fields with the help of a directed electromagnetic wave with its transformation into electrical energy, which will be supplied to the electric motor.

scholarly journals On the Issue of Regulatory Support for Passenger Electric Vehicles Operation

2020 ◽  
Vol 18 (1) ◽  
pp. 196-211
Author(s):  
M. A. Kudryashov ◽  
A. V. Prokopenkov ◽  
R. S. Ayriev
Keyword(s):  
Electric Vehicles ◽  
Environmentally Friendly ◽  
Economic Assessment ◽  
Intermediate Stage ◽  
Transport Infrastructure ◽  
Rolling Stock ◽  
Electric Transport ◽  
Electric Bus ◽  
Environmental Goals ◽  
Charging Stations

The article provides the results of an intermediate stage of research on development of a project to create infrastructure for operation of highly environmentally friendly electric vehicles. The transition to electric transport is one of the promising methods to solve the problem of emissions and achieve environmental goals. An electric bus is a relatively new type of rolling stock, requiring a balanced and objective justification for selection of certain possible options for technical, technological, economic and other aspects of organisation of its operation. To achieve the goal of developing a project to create infrastructure for operation of environmentally friendly electric vehicles, an initial analysis of legal acts, technical characteristics of electric buses and the parking and on route infrastructure approaches to organizing transportation by electric buses with various charging concepts was performed. The analysis of the concepts of charging electric bus batteries allowed to divide them into 5 classes and group into 3 groups according to charging speed. An analysis of the required infrastructure for operation of electric buses showed that conceptually there are 2 types of charging stations. The calculations and evaluation of various options for organizing operation of electric buses on a fixed route with various concepts of charging were performed. A necessary direction for further research is economic assessment of operation of electric buses with various charging concepts and the necessary transport infrastructure. The methods used include analysis, evaluation of previously performed analytical studies, legal acts and a synthesis of domestic and foreign experience.

Proactive Control of Rolling Stock with Traction Asynchronous Electric Motors

2021 ◽  
Author(s):  
Valery Dmitrienko ◽  
Valentin Noskov ◽  
Alexander Zakovorotniy ◽  
Nikolay Mezentsev ◽  
Sergey Leonov ◽  
...  
Keyword(s):  
Rolling Stock ◽  
Electric Motors ◽  
Proactive Control ◽  
Asynchronous Electric Motors

scholarly journals Formation and development of main-line electric locomotive engineering in independed Ukraine (1991 – 2008)

2021 ◽  
Vol 29 (1) ◽  
pp. 105-112
Author(s):  
М. Ruban ◽  
B. Baka
Keyword(s):  
Development Strategy ◽  
Machine Building ◽  
Engineering Industry ◽  
Main Line ◽  
Rolling Stock ◽  
Electric Transport ◽  
Electric Locomotive ◽  
Long Time ◽  
Railway Engineering ◽  
Historical Tradition

The Ukrainian transport engineering industry has a deep historical tradition that goes back to the activities of the Odesa railway workshops and the establishment of specialized locomotives in Kharkiv and Lugansk. The electric locomotives industry in Ukraine is represented by the products of the Dnipro plant, which for a long time produced electric locomotives of a purely industrial purpose. In the early 1990s, to upgrade the locomotive fleet of Ukrainian railways in the absence of foreign exchange funds for the purchase of traction rolling stock abroad, the management of Ukrzaliznytsia, together with the line ministries, decided to provide the organization of the main-line electric locomotives based on the Dnipro plant. During the implementation of the state program of mainline electric locomotives construction, the Dnepropetrovsk plant developed, and subsequently implemented, projects of a freight DC electric locomotive DE1, an AC cargo and passenger electric locomotive DS3, and also based on DS3 began technical research on a two-system electric locomotive with an asynchronous drive DS4. The Dnipro electric locomotive engineering plant, with its powerful scientific and production potential and clear development strategy, carried out the development and created the next generation's main electric locomotives to meet the needs of Ukrainian railways with modern electric transport. Unfortunately, due to the traditional lack of funding and lobbying on the part of Russian machine-building enterprises, the Dnieper electric locomotives have not become the main locomotives of Ukrainian railways. Unfortunately, due to the economic-financial crisis of 2008, all the prospective achievements of the said enterprise were virtually offset and the plant itself was in a difficult position. However, it is clear that the historical experience of becoming a Ukrainian scientific and production base of railway engineering needs to be properly considered. The proposed study does not deplete the raised problem in the field of the Dnipro electric locomotive plant`s activities, but only provides a general analysis and factual basis for further, more detailed review of the maintenance and development of national railway engineering in independent Ukraine, leaving considerable space for further scientific research.

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