Article

Received 03.08.2024

Revised 10.11.2024

Accepted 26.12.2024

Retrieved from Vol. 28, No. 2, 2025

Pages 27 -40

Yurchenko, V., Nezlina, O., & Tkachenko, V. (2025). Development of a diagnostic system for the presence of rotor eccentricity in traction induction motors. The National Transport University Bulletin: A Scientific and Technical Journal, 28(2), 27-40. https://doi.org/10.32703/2617-9059-2024-44-2

Development of a diagnostic system for the presence of rotor eccentricity in traction induction motors

Victor Yurchenko Olena Nezlina Valentyna Tkachenko

The  aim  of  research  is  to  develop  a  system  for  functional  diagnostics  of  the  presence  of  rotor eccentricity  in  traction  induction  motors  of  railway  rolling  stock.  To  achieve  the  aim,  the  following objectives were solved in the work: the Prony’s method was adapted to perform the task of diagnosing the eccentricity of the rotor of an induction motor during the operation of the rolling stock; the algorithm of functioning of the system of functional diagnosis of rotor eccentricity based on the adapted Prony’s method is proposed; a structural diagram of the rotor eccentricity diagnosis unit based on the adapted Prony’s  method  is  proposed;  a  structural  diagram of  the  system  of  functional  diagnosis of  rotor eccentricity is proposed. The most important results are obtaining a mathematical model of the Prony’s method, adapted to the task of diagnosing the eccentricity of the rotor of an induction motor during the operation of rolling stock. The adaptation of the Prony’s method algorithm is performed by applying the  Wiener-Hopf  procedure to  the  analyzed  signals. This  will  make  it  possible  to apply  the  proposed algorithm in conditions where the process of changing the analyzed signals is stochastic in nature. This will make it possible to determine the eccentricity degree of the AM rotor with greater accuracy and to make a more correct decision regarding the AM operation with the existing eccentricity of the rotor

asynchronous motor; diagnostics; eccentricity; rolling stock
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https://doi.org/10.32703/2617-9059-2024-44-2