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Abstract
Purpose. In order to ensure reliability, security, and the most important the continuity of the transportation process, it is necessary to develop, implement, and then improve the automated methods of diagnostic mechanisms, devices and rail transport systems. Only systems that operate in real time mode and transmit data on the instantaneous state of the control objects can timely detect any faults and thus provide additional time for their correction by railway employees. Turnouts are one of the most important and responsible components, and therefore require the development and implementation of such diagnostics system.Methodology. Achieving the goal of monitoring and control of railway automation objects in real time is possible only with the use of an automated process of the objects state diagnosing. For this we need to know the diagnostic features of a control object, which determine its state at any given time. The most rational way of remote diagnostics is the shape and current spectrum analysis that flows in the power circuits of railway automatics. Turnouts include electric motors, which are powered by electric circuits, and the shape of the current curve depends on both the condition of the electric motor, and the conditions of the turnout maintenance. Findings. For the research and analysis of AC electric point motor it was developed its mathematical model. The calculation of parameters and interdependencies between the main factors affecting the operation of the asynchronous machine was conducted. The results of the model operation in the form of time dependences of the waveform curves of current on the load on engine shaft were obtained. Originality. During simulation the model of AC electric point motor, which satisfies the conditions of adequacy was built. Practical value. On the basis of the constructed model we can study the AC motor in various mode of operation, record and analyze current curve, as a response to various changes of the load on engine shaft.
Highlights
Railway transport is the safest existing transport mode today
The obtained results almost do not differ from the passport data of the switch AC electric engine of MST-0.3 type
Since the simulation results properly coincide with the real operating characteristics of the switch electric engine, so it is possible to set different loads and study the model response suggesting in advance that this response is the same as the response of the object under study
Summary
Railway transport is the safest existing transport mode today. Everyday tens of thousands of employees operate technological process for maintenance and repair of the railway equipment. There are unforeseen situations that could lead to serious consequences. Incidents are not uncommon; sometimes accidents and catastrophes take place. It is impossible to analyze all the cases of violations, because in the majority of cases the workers, if it is possible, try to keep such cases in the dark. They wish to avoid any punitive measures for negligent performance of their duties
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