Статті КЕТЕМ

Permanent URI for this collectionhttp://crust.ust.edu.ua/handle/123456789/1926

ENG: Articles

Browse

Now showing 1 - 2 of 2

Development of a Diagnostic Procedure for Assessing the Performance of a Magnitoplane Navigation System
(TECHNOLOGY CENTER PC, Kharkiv, 2025) Plaksin, Serhiy; Mukha, Andrii M.; Ustymenko, Dmytro V.; Podchasov, Andrii; Holota, Oleksandr
ENG: The object of research is the process of ensuring the reliability of high-speed magnetic levitation. Navigation tasks of high-speed ground transport require high accuracy and reliability along with high speed of obtaining data on the location of the magnetic levitation. The problem to be solved is to ensure the integrity of the magnetic levitation navigation system by means of essential integration into its structure of the diagnostic subsystem, the basis of which is the phase ranging method. It has been established that the diagnostic procedure for determining the operability of the navigation system of a high-speed vehicle in real time is fully ensured by the use of the phase ranging method. A method of continuous precision positioning of a high-speed magnetic levitation vehicle based on the phase ranging method for an arbitrary configuration in three-dimensional space of a fixed track structure, as well as a method of ensuring the integrity of the navigation system of a maglev train, has been substantiated. A new approach to solving the location problem is proposed, which allows using the train communication channel with the traffic control center as a distributed location sensor as an integral element of the radio wave information and control system. The structure of the information packet cycle is proposed. The volume of the information flow and the degree of redundancy introduced into the information flow to ensure the required reliability of information transmission are determined. The developed diagnostic procedure meets the requirements for the safety and reliability of operation of high-speed ground transport based on magnetic levitation technology, the movement of which is controlled using a navigation system topologically connected with the configuration of the track structure.
Identification of the Characteristics of Control Signal Generation for Implementing the Traction Mode of a Physical Model of Magnetic Levitation Transport
(ПП «Технологічний Центр», Харків, Україна, 2026) Chupryna, Yehor; Mukha, Andrii M.; Plaksin, Serhii; Ustymenko, Dmytro V.; Bondar, Oleh I.; Marenych, Oksana L.; Holota, Oleksandr; Antoniuk, Andrii
ENG: The object of this research is the process of generating control signals for implementing the traction mode of a physical model of a magnetic levitation transport system. The problem that was solved was the formation of control signals for implementing the traction mode of the physical model and the method of switching track coils. In the experimental physical model, the traction mode is implemented by control signals formed on the basis of the angular values of the encoder corresponding to the position of the crew. Based on these signals, the traction modules of the stand are commutated to ensure the necessary polarity of the magnetic field, which creates traction force and ensures the movement of the crew past the section. The implementation of the traction mode requires accurate determination of the position of the crew relative to the track structure. For this purpose, an encoder signal is used, the information from which is processed in the control unit of the track structure section. A schematic solution and an algorithm for the operation of this unit for a physical model are proposed. The search for an element base for control boards requires performance verification. From several variations of boards, the one that implements the proposed algorithm with satisfactory process quality was selected. The main research method is an experiment conducted on a physical model stand. A switching control unit for the traction section of the physical model stand has been developed and implemented, which includes: control boards, a motherboard and software on the Arduino platform. A board option with three DC-DC converters was selected, which ensured stable operation of the traction section. The main characteristics of electrodynamic processes were obtained, namely: moments of polarity switching of modules, changes in voltage, current and power during the passage of the crew past the section. The switching range of the traction section is approximately five seconds. The results obtained create the prerequisites for the development of experimental stands and models of maglev transport for further research into traction modes.