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The article considers the current situation regarding the organization of control over the use of traction and energy resources of JSC «Russian Railways». The main provisions of the proposed method are stated. The influence factors on the specific electric power consumption of electric locomotives of series 2ES6 and VL10, as well as the evaluation of the quality of the constructed models of multiple nonlinear regression were estimated. New scientifically grounded technological solutions and developments are proposed that allow to reduce the specific consumption and unproductive losses of electric energy within the boundaries of the railway accounting areas.

Nowadays fuzzy neural networks are widely used for modeling of complex industrial processes. The paper considers the application of fuzzy logic to generate a mathematical model of electricity consumption in rail transport for example, traction substation Dorogino. Algorithm for choice of the structure of fuzzy neural network including the species and number of membership functions for input and the number of training cycles is presented. Comparative analysis of the structures by evaluating the mean square error is made.

A method for remote diagnosis of suspended porcelain insulators based on the pulse method is proposed. The form of test pulses for diagnosing isolators in the area of the DC contact network is determined. The main diagnostic parameters of the supplied and recorded pulses are given and calculated. The possibility of determining the distance to the faulty garland depending on the amplitude value of the diagnostic pulse has been revealed. The change of the peak value of the pulse decay depending on the resistance of the insulator string is considered. The proposed method allows localizing the position of a faulty insulator string at the DC power supply section, and subsequently reliably determining the faulty insulator in the festoon.

Application intellectual networks (smart grid) technologies for electric power quality management in systems of alternating current railroads’ power supply are considered. The structure of intellectual traction power supply system is described. Classification of management technical means for electric power modes and quality is given. The algorithm of intellectual electrical power traction systems modes’ modeling is offered. This algorithm differs by sharing of imitating and dynamic models of the active smart grid elements in its basis. The modeling results confirm applicability of the developed methods for the solution of electric power quality management’s problems.

The article discusses a question, which is bonded with the traffic safety, namely the integrity’s verification of the braking highway’s of the freight train before the departure. There was given a range of reports in the absence of the braking highway’s integrity’s test by the locomotive crews. There was the verification’s order developed and his testing done. There were made the suggestions for improvement of the safety devices in terms of automation of the integrity’s verification of the braking highway.

The article deals with issues related to theoretical and experimental studies of operating modes of the traction power supply system. The analysis of the comparison of voltages on the tires of traction substations with uncontrolled rectifiers and tires of traction substations with converter units equipped with a system of non-contact automatic voltage regulation is shown, the differences between them are shown. The modes of operation of the active partitioning post with the point of increasing voltage have been studied in detail. As a result of research, it was found that the observation time of maximum voltage values at substation tires above the average no-load voltage level is about 5 -10% of the time of day, about 7 - 8% at active posts, and 10 - 13% at passive posts. The maximum power in the active mode of the post sectioning with the point of increasing the voltage at lower voltage in the contact network is 2.9 MW. The average amount of electricity returned to the contact network point of increase of voltage, in one case is 170 kWh. The average duration of work in active mode for one case is 8,6 minutes.

The known approaches to the classification of factors affecting the energy consumption of the train are considered, and their main disadvantages are identified. The validity of existing classification methods and the completeness of accounting for factors affecting energy consumption are evaluated. It is shown that none of the known approaches to classification gives a complete picture of all the influencing factors and the degree of their influence on the energy consumption of the train, since it does not fully take into account the physical nature of the individual components and the overall power consumption for traction. Based on the analysis of the energy balance of the train articulated principles and criteria for the classification of factors influencing energy consumption, considers the interconversion of different forms of energy and describe their energy diagrams in the different modes of the train movement. The analysis made it possible to identify the factors that affect the power consumption of the train in all modes of movement, and evaluate them according to various criteria. A classification of factors affecting the train's electricity consumption is proposed, which allows us to justify the correct method of accounting for each factor, develop measures to reduce the influence of individual factors on energy consumption, improve the system of analysis, rationing and forecasting of electricity consumption for train traction, and competently solve other problems of electric traction energy.

The question of the possibility of using concrete foundations support of a contact network as earthing. The analysis of the impact of the construction of the foundation for the spreading re-sistance. The results of the calculation of spreading resistance of the anchor bolt foundation metal support on the proposed formula.

The subject of research is the evaluation of the effectiveness of different modes of energy-optimal control of the movement of a freight train of a unified mass by AC freight electric locomotives of the Uz-El series with asynchronous electric motors on the flat section of Kokand - Andijan of the Uzbek railway. Purpose of the study: substantiation of the main performance indicators of electric traction locomotives, taking into account the given traffic schedule, using various options for the optimal mode of controlling the movement of a freight train with a unified train mass on a real flat section of the Uzbek railway. The methods and methodology of the research are the theoretical foundations of locomotive traction, the mathematical theory of optimal object control, as well as the C # programming language (C Sharp) with the development of mock-up applications in the Microsoft Visual Studio 12.0 programming environment.As a result of the study, energy-optimal curves, kinematic parameters of the movement of a freight train and parameters of the main indicators of the energy efficiency of the investigated electric locomotive for different options for traction calculation on the real flat section of Kokand - Andijan of the Uzbek railway were obtained. The obtained kinematic parameters of the movement of freight trains with a unified mass of the train and the parameters of the efficiency indicators for the use of the studied electric locomotives can be used in the Kokand locomotive depot, which will allow developing regime maps for driving freight trains by these electric locomotives, depending on the level of complexity of the track profile and various conditions for organizing rail transportation of goods.

This article provides a detailed analysis of relevant issues related to improving the efficiency of freight operations with railcars at freight railway stations and the adjacent access tracks. The main focus is on reducing excessive idle time of railcars, trucks, and other rolling stock by optimizing the technological sequence of loading and unloading processes, as well as by rationalizing the use of technical equipment. The study substantiates the need to equip freight handling areas with a sufficient number of modern loading and unloading machines to ensure timely handling of cargo arriving in railcars of various categories. In accordance with the actual intensity of cargo flows, the most heavily loaded fronts located on critical paths are identified, and their optimal distribution is proposed, taking into account the quantity, performance, and workload of the technical resources in use. This systematic approach creates real preconditions for timely completion of all freight operations within the established timeframes, minimizes the risk of delays, and ensures a steady workflow at the station. The article also suggests ways to further improve the organization of local station operations through the development of a rational and balanced daily schedule. The use of network planning methods makes it possible to accurately identify critical operations, delays in which may cause schedule disruptions, and ensures reliable coordination of all stages of railcar handling. As a result, comprehensive improvements in the efficiency of freight station management and its operational performance are achieved. To prevent the idle time of transport vehicles during the delivery and removal of these railcars, it is advisable to carry out this process using Microsoft Project software for better organization.

This paper considers a continuous automatic locomotive signalling (CALS) receiver with a correlation decoder. The aim of this paper is to investigate the influence of harmonic interference from a high-voltage power line on the operation of a non-linear CALS receiver with a correlation decoder. The experimental study of the quality of operation of a non-linear CALS receiver with a correlation decoder under the influence of harmonic interference from high-voltage power lines was carried out using the simulation method. Simulation models of interference from a high-voltage power line (VPL), a receiver and a correlation decoder of the CALS channel were used in the study. The analysis of oscillograms obtained as a result of the study has shown that the correlation decoder has a number of features due to the algorithm of its functioning. The correlation decoder more confidently accepts code combinations with a duration of 1.6s (generated by the code track transmitter of CTT-5 type), than the duration of 1.86s (generated by the code track transmitter CTT-7). This is expressed in a shorter time interval of disturbance of the CALS non-linear receiving device. At decoding of the code combination (CC) with the duration of both 1.6 s and 1.86 s the situation of short-term decoding of the more permissive CC «Y» instead of «RY» was observed. However, the duration of these situations did not exceed two code cycles and would not have caused a more permissive light to appear at the locomotive traffic light. In general, the experiments have shown that the CALS CC correlation decoding algorithm needs improvement for more confident decoding of CCs produced by a code track transmitter of the CTT-7 type(1.86 s).

The purpose of this article is to analyze the voltage drop in the contact network caused by poor-quality operation of an alternating current electric locomotive when passing heavy trains. Heavy-haul traffic is considered today as a valid and necessary tool for increasing weight norms and increasing the throughput of railway sections. The article provides statistics on the passage of heavy and connected trains on the Krasnoyarsk railway for 2019 and 2020. For the effective use of heavy traffic, it is necessary to solve a number of problems, one of which is to reduce the voltage in the overhead network when passing heavy trains, this negatively affects the speed of the train along the haul, the conditions for cooling the power equipment of the electric locomotive deteriorate, etc. As a result of the analysis of the operation of the thyristor rectifier-inverter converter, a number of disadvantages were revealed. The reason for the low power factor of the electric locomotive lies in the use of an outdated element base based on thyristors, their closure is carried out only in the next voltage half-cycle, long-term switching and a large opening angle of thyristors leads to a significant reactive current in the contact network. Based on the analysis the voltage losses at the current collector, it was concluded that it is necessary to reduce the duration of the switching process of the arms of the rectifier-inverter converter, in which a short circuit occurs in the secondary winding of the traction transformer. An alternative version of the converter based on fully controlled semiconductor devices - IGBT transistors is proposed. The ability to open and close at any time of such elements allows you to minimize the phase angle and increase the power factor. Due to the almost instantaneous switching of transistors, the distortion in the contact network is minimized.

The article describes the design of a universal measuring pantograph, designed to obtain during the test trips sets of accurate and adequate information on the quality of current collection due to the possibility of modeling parameters and characteristics of advanced domestic and foreign current collectors, mounted on a modern electric rolling stock. Presented the results of his testing at the West-Siberian railway.

The questions of the composition of the design and technology of smelting, casting and heat treatment of alloyed rail steels having high operational stability. Together specialists EVRAZ ZSMK Novokuznetsk and IrGUPS was proposed complex doping scheme of the rail steel and rail rolling floor EVRAZ ZSMK was conducted testing of the technology of smelting and eletropechnoy thermostrengthening superperlitnoy steel of high purity, which has high wear resistance. several experimental batches were produced rails, which are tested on the site of the saddle-point Irkutsk-Slyudyanka VSZHD with an unfavorable combination of operational loads, causing increased wear of the rails. The test results showed high wear resistance experienced rails and expediency of development of industrial production.

The article presents the main results of experimental studies within the boundaries of the Fadino - Novoseletsk, Novoseletsk - Strela interstitial zones of the Entrance - Irtysh section. As a result of the research identified problems that currently hinder the online monitoring of operational parameters of the electric rolling stock (EPS) and power supply devices: a lack of data on the work of the traction substations, the presence of EPS without registration motion parameters (RAPS), the lack of process data collection with RAP, the lack of a single source and process for obtaining data, insufficient memory storage device of cartridge, lack of data latch on the locomotive in General, lack a set of fixed parameters, non-constant sampling of parameter fixing, insufficiently detailed final documentation, imperfect software for exporting data from cartridges and lack of binding to global time. Shown the possibility of joining data from different automated systems of JSC "RZD" and measuring systems OSTU, which will allow us to estimate the losses in the traction network, the expense on own needs of electric rolling stock , the electric power consumption for traction and return of electric energy to contact network, as well as move forward with implementation of predictive control operation modes of the electric rolling stock and power infrastructure and Railways in a changing environment in the transportation process, to ensure the best conditions for the realization of tractive effort, regenerative braking, set train schedules, including in case of critical restrictions on the part of the power supply system, preventing train traffic from stopping.

In the practice of railway transport and the locomotive complex, the average statistical data used in practice are not homogeneous, which is usually called “average temperature in the hospital” in the literature. The homogeneity of data is determined by their unimodality, i.e. the presence of one process in the sample. Unsuccessful sampling leads to its bimodality and even multimodality. It is proposed to check for unimodality of the initial data using the consequence of the law of large numbers, according to which, with an increase in the number of data, homogeneous samples tend to one of the distribution laws of a random variable: normal, exponential, lognormal, or another known law. Therefore, any unimodal sample must meet the goodness-of-fit test, which the article proposes to use the Pearson test (“chi-square”, χ2). The unimodality of the data is proposed to be estimated through the probability of compliance with the law of distribution of a random variable chosen for consideration, considering the probability of more than 0.3 (30%) to be sufficient. On the example of locomotive operation data and on-board microprocessor systems data, data are shown that cannot really be unimodal, but there is data that requires changing the sampling rules to achieve unimodality. For example, when considering the average daily runs of locomotives by series at specific home depots with participation in one type of traffic (main traffic, shunting or switching work), unimodality is achieved. An attempt to enlarge the data (take several series, several polygons, etc.) leads to the loss of unimodality. The article considers the unimodality of these on-board microprocessor control systems MSU-TP for diesel locomotives of the 2TE116U series. The expected operating time for the positions of the driver's controller turned out to be multimodal data. Unexpectedly, the current of the traction motors turned out to be unimodal, regardless of the driving position of the driver's controller.

A mathematical model of thermal processes (dynamic) contact current collector with contact suspension (in motion), which allows to estimate the temperature distribution of heating the current collector during movement. The experimental evaluation of the proposed cooling device performance is given. The thermal model of the current collector in motion mode has been verified.

In connection with the traceable global trend of increasing average speeds in railway transport, more and more often they are trying to exclude the intersection of railways and roads. However, in the Russian Federation, only 40 % of railway crossings are located near settlements or on busy roads, the construction of two-level interchanges at the remaining crossings is not economically profitable, and sometimes difficult due to climatic conditions. Therefore, a different approach is needed to prevent incidents and accidents at crossings. At the same time, the need for an individual construction of a security strategy for each object of the transport infrastructure should be taken into account. At present, in the existing information systems of the Ministry of Transport, the Ministry of Internal Affairs, as well as the owners of the railway infrastructure, a fairly large amount of statistical information has been accumulated on incidents and traffic accidents at railway crossings. But most often these data are used for certificates containing absolute values in each of the departments. At the same time, the relationships between these disparate sources of information are not comprehensively analyzed. Modern technologies for creating intelligent information systems based on existing large databases and tools such as machine learning, intelligent search, neural networks make it possible to build an expert system based on a specific set of rules that can analyze the situation at a particular crossing, assess the likelihood of emergency situations and suggest ways to prevent them. In addition, it is important to analyze not only the infrastructure, but also specific units of vehicles and the accident-free performance of the drivers driving them. This article discusses the prerequisites and technology for building a knowledge base of an intelligent system used to analyze the level of safety at railway crossings, which will allow us to combine currently information about the factors accumulated in various systems that affect traffic safety at crossings and based on the accumulation of knowledge give a forecast of the development of the situation at each specific object.

The minimum of number of operations for a polynomial calculation is found. Results are presented as proofs of one lemma and one theorem.

Results of the analysis of normative and legal documents of the Russian Federation, and also the internal normative documents establishing the main target indicators and requirements to activities for energy saving in «Russian Railways» Holding are given in article. Need of carrying out updating of Power strategy of «Russian Railways» Holding and revision of the list is proved by the mechanism of its realization.

In this paper, the possibility of controlled shunt reactor (CSR) to absorb excess charging capacity in long lightly loaded transmission lines of 110 kV electric networks Nordic branch of JSC "IDGC of Siberia" - "Omskenergo." The emergence of excess reactive power leads to an increase in the voltage at the nodes of the power system and the emergence of significant power loss. The application of CSR, The calculation of the required power, the place of installation, pre-feasibility study.

The purpose of the article is to consider the issue of calculating and selecting the settings for the operation of the short-circuit switch KZKS-3.3 when organizing the protection of a direct current contact network in emergency mode. The shorting circuit is measured by the voltage module. When the triggering conditions are met, it is the voltage module that collects the circuit to turn on the switching device of the short circuit. The important question is to choose the optimal installation location of the short-circuit switches and the voltage trip settings. The initial information necessary for the calculation of the settings is determined. The calculation procedure and equivalent circuits for the most common power supply circuits and sectioning of the contact network are given. For current protection of high-speed circuit-breaker feeders, contact formulas are given for determining the sensitivity zones. To select the optimal installation location of the short-circuit and select the voltage pick-up setting from the allowable range, a potential diagram of the contact network section is constructed. The analysis based on the potential diagram allows us to conclude that the organization of protection of the contact network in emergency mode using short circuits is effective.

Rheostat trials must be carried out after repairing of a diesel locomotive. As a rheostat it is used a complex of equipment and it is taken a separate building for the staff, which must be situated at a set distance from office buildings. In order to keep the building for the staff warm central heating is used. The net cost is extremely high and transit heat losses are often comparable with effective consumption of the heated building. In this work the possibility to utilize the secondary energy resources for heating the stations is considered where rheostat trials are supposed to be carried out. It is noticed in separate depots that the measures of heat energy utilization from load rheostats have already been applied, but they are not widespread. There are external restrictive factors which limit the adoption of heat-recovery installations and also technical and organizational factors as well. There have been proposed principal measures which could be considered in case of the adoption of heat-recovery installations. Calculations are performed by heat energy generation by a rheostat during typical trials of diesel locomotives TEM2 and heat quantity of heat-transfer agent in typical load water rheostats. It is proposed that the plan to utilize secondary energy resources in low temperature heating systems will be effective. It is also mentioned the utilization of low temperature heating systems has many advantages. The required heat energy generation of heat-recovery installation for each month of the year have been calculated, and Station Omsk depot is one of the example where these calculations have been performed. It is noted required quantity of trials for heat loss compensation coincide with station operating schedule of rheostat trials in the majority of depots and would like to apply the indicated trial method. The calculated economical cost of these measures along with capital costs for the speed of completing the building should be considered when calculating the total cost of the station over the open rheostat tank.

This study focuses on the harmonized definition of sets of source data and criteria for creating an optimal container handling model at a terminal of type «dry port» served by rail and road transport. The model development process should consider priority in managing rail and road transport, balancing their interests and the cost-benefit relationship between cargo equipment and inactivity of vehicles and/or containers, depending on the technology and speed of cargo handling. The article noted that in the part of setting the task, many authors have limited approaches to the concept of «optimal terminal operating model» and the applied criteria of optimality. The study proposes a set of initial data intended to create an optimal work model, which includes data on the characteristics of the container flow, terminal, transport and handling mechanisms and processing. When creating the optimal terminal operation model, it is possible to evaluate the efficiency of the process in isolation or in a complex at once in several aspects depending on the purpose of the simulation. The valuation can be performed using a value criterion (cost of processing TEU), a criterion in terms of the natural value (maximum amount of processing to be realized, duration of processing) or an integral criterion (natural-cost value). The work has shown that the completeness of the sets of source data and the determination of calculation parameters in several possible units of measurement make the model adaptive for various modeling tasks and application of different criteria of optimality. For data that is dynamic by nature, the procedure for automated retrieval from existing information management systems significantly accelerates and simplifies calculation, allowing its use for operational planning and management purposes.

In article the reasons of shutdowns of high-speed switches of a direct current are analysed and distribution of the disconnected currents is received. Such numerical characteristics as population mean and a mean square deviation of function of distribution of the currents which are disconnected by the high-speed switch are considered. The hypothesis of distribution of probability of refusal in operation of the switch is checked. Conclusions are drawn on applicability of the given calculation methods for definition of admissible number of shutdowns of high-speed switches on sites of traction network of a direct current.