Scientific work at the department is conducted in three main directions.

– Electromechanical conversion of energy in perspective rail transport (head – prof. Omelyanenko V.I.)

– Resource- and energy-saving technologies on railways
(supervisor – Assoc. Over’yanova L.V..).

– Dynamics of railway rolling stock and its interaction with the rail track (head – prof. Masliev V.G..).

Works of direction Electromechanical energy conversion in perspective rail transport were held on the following topics: Traction electric drive of rolling stock; Trains with tilting bodies; Energy accumulators for railways.

Works by topic traction electric drive of rolling stock headed by prof. Lyubarsky B.H. At this time, theoretical foundations have been created for evaluating the efficiency of energy conversion systems in the traction electric drive based on modern and promising electric motors: asynchronous, synchronous with electromagnetic excitation and excitation from permanent magnets, as well as induction – reactive and with an axial field. On the basis of these principles, a software-algorithmic complex was created, which makes it possible to determine rational types of electromechanical energy converters for suburban, interregional and high-speed trains.

For trains with tilting bodies for the first time in the world, a tilting system drive based on an electromagnetic linear motor was proposed, which provides the conversion of electrical energy directly into the tilting of the car body during its movement in curved sections of the track. The regularities of connections between the geometric and electrophysical parameters of the drive and its operating characteristics have been established.

As a means of energy saving for rolling stock and power supply systems of railways, the department has developed an inertial energy accumulator with a ring-type rotor and an electromechanical energy conversion system in the form of an inverted direct current machine with excitation from permanent magnets and a semiconductor switch. It has been proven that the use of such storage in the traction network can significantly reduce voltage fluctuations in the catenary network, as well as level the daily load schedule. It is shown that the use of this type of storage device as an on-board device on suburban electric trains provides more than 30% electricity savings in each “acceleration-braking” cycle during stops.

The works in this direction were carried out under the state order and in accordance with business contracts.

Works by state order.

“Development of the scientific basis for the creation of an electromechanical drive for the mechanism of tilting trains of high-speed railway transport of Ukraine.”

“Development of the scientific foundations of the creation of a test stand with an energy storage for high-speed trains.”

“Development of practical provisions for the creation of suburban high-speed trains with tilting bodies and energy storage.”

Works performed according to business contracts. NPO “Electrovajmash” and PJSC “Kryukovsky Carriage Plant”.

“Development of a software-algorithmic complex for the design of traction synchronous motors with excitation from permanent magnets.”

“Development of a software-algorithmic complex for the design of engines with a transverse field”.

“Development of a stand for testing the electromechanical energy conversion system for rolling stock.”

“Development of the scientific basis for the creation of an electromechanical drive for the mechanism of tilting cars of high-speed railway transport of Ukraine.”

A number of works were also performed on own initiative.

“Software-algorithmic complex for the study of working and energy characteristics of rolling stock and its power supply systems”. This complex makes it possible to observe in real time the processes taking place in the undercarriage, in the traction power transmission system, as well as in the power supply systems of railways. The software product is protected by the Certificate of Copyright No. 53923 “Computer program for calculating modes of operation and movement of electric traction trains equipped with alternating current traction motors”.

Based on the results of this work, a conceptual project of an electrodynamic traction-levitation system for a cargo platform with a 40-ton container moving at a distance of 80 mm from the guide structure at a speed of 110 m/s was developed.

One doctor’s and seven candidate’s theses were defended on the works of this direction.

Works by direction Resource- and energy-saving technologies on railways were carried out by employees of the department on the order of the Main Department of Electrification and Power Supply of Ukrzaliznytsia and individual railways of Ukraine.

Thus, in 2013, the “Energy Strategy of Ukrzaliznytsia for the period until 2015 and for the perspective until 2020” was created, which was agreed by the Main Departments (order of Ukrzaliznytsia dated 27.11.2012 No. 362-ЦЗ) and approved by the State Administration of Railway Transport of Ukraine on 26.11. 2013

The following works have been completed in recent years.

“Development of a technical task for the creation of an automated system for forecasting the hourly, daily, monthly volume of electricity consumption for the needs of railways.”

“Development of a technical task for the design of an alternating current catenary network for speeds of up to 200 km/h.”

“The concept of schematic and technical solutions for the external power supply of traction substations under the existing modes of operation of energy systems in the conditions of a market economy.”

“Concept of organization of diagnostics of railway power supply devices and their maintenance according to condition”.

“Development of the technical task and technical documentation for the automated current collector diagnostic system.”

“Development of a technical task, technical project for a device for regulating static and dynamic characteristics of switches of DC traction substations”. According to this technical task, a PRV-3,3 circuit breaker adjustment device was manufactured, which was put into operation on the Prydniprovsk railway.

Based on the results of scientific works in this area, three PhD theses were defended.

Direction of Dynamics of railway rolling stock and its interaction with the rail track is a continuation of the works of P. M. Mukhachov and S. M. Kutsenko.

In this direction, by order of PJSC “Luhanskteplovoz”, farm contract works “Research and project work on the creation of pneumatic suspension of a trolley for diesel-electric trains with increased dynamic and operational indicators” and “Development of technical documentation for elastic axial wheel drive with rolling bearings” were performed.

One doctoral and two candidate theses were defended.

The specialized academic council D64.050.15 for the defense of doctoral and candidate theses in the direction 05.22.09 – Electric transport works on the basis of the department.

Books written by employees of the department

Y.P. Goncharov, M.V. Panasenko,  Semenenko O.I., Hvorost M.V. Static converters of traction rolling stock Study guide Kharkiv: NTU “KhPI”, 2007. – 192 p.

Zayonchkovsky V. M., Masliev V. G., D. I. IakuninThe general structure, thermal calculations of power plants and issues of manufacturing technology for the crew part of diesel locomotivesStudy guide Kharkiv: NTU “KhPI”, 2008. – 196 p.

Masliev V. G. Modern designs and dynamics of railway rolling stock Study guide Kharkiv: “Textbook of NTU “KhPI””, 2014. – 106 p.