MECHANICAL PARAMETERS CONTROL OF THE NEUTRAL RELAY OF RAIL AUTOMATICS BASED ON WAVELET ANALYSIS
DOI:
https://doi.org/10.15802/stp2016/90493Keywords:
electromagnetic relays, control parameters, the wavelet transformAbstract
Purpose. The scientific paper focuses on development of a method for mechanical parameters control of the neutral relay of rail automatics by current analyzing in the coil and the relay contacts at switching based on wavelet transform. Methodology. The methodology was based on current analysis of the relay coil and contacts currents under its switching and analysis obtained results by using wavelet transform. Findings. The time dependences of the current in coil and in contacts under switching on and off for the operable relays and relays with certain defects have been measured at different voltages applied to coil (10, 12 и 14 V). When voltage applied to coil was increased the rate of coil current increased, but time constant of the circuit was changed with voltage slightly. The current value maximum at which the relay armature begun to move for the operable relays was depended on applied voltage slightly. For the time interval, at which armature was putted to the relay core fully, time constant of the circuit was changed with voltage slightly also. The maximum current value at which the armature starts to move to the relay serviceable little dependent on the applied voltage. For site based in which the anchor is completely dragged constant current rise time is also a little dependent on the applied voltage. Similar results were obtained for the current reduction time constant with turning off the voltage and current confinement. The current pick-up and the current release of the armature increases for the relay with the load anchor is proportional to the weight of cargo, as well as for the relay contact with the rear, bent down, while the flexural rear contact up these currents have smaller values. Large-scale (low-frequency) coefficients of DWT can be used for a more accurate comparison of the current pick-up, and release time constants of the transient. Small scale coefficients fiberboard (HF) can be used as distinguishing traits defects mobile relay system. Originality. For the first time, on the basis of the research proposed to use detailing coefficients of a discrete wavelet transform as a symptom of mobile relay system. The approximation (smoothing) ratios can be used for a more accurate comparison of the current pick-up, and release time constants of the transient to detect defects of the electromagnetic relay system. Practical value. The studies conducted by the author can be used to develop stand-aided control of a technical condition of the relay neutral railway automation.
References
Bondarenko, B. M. (2012). Avtomatizirovannyy kompleks diagnostiki rele zheleznodorozhnoy avtomatiki. Elektro-mahnitna sumisnist ta bezpeka na zaliznychnomu transporti – Electromagnetic Compatibility and Safety on Railway Transport, 3, 68-76.
Bondarenko, B. M. (2013). Akustychnyi kontrol elektromahnitnykh pryladiv zabezpechennia bezpeky rukhu zaliznychnoho transportutu. Elektromagnitna sumisnist ta bezpeka na zaliznitcnomu transporti – Electromagnetic Compatibility and Safety on Railway Transport, 5, 38-45.
Vitenberg, M. V. (1975). Raschet elektromagnitnykh rele. Moscow: Energiya.
Havryliuk, V. I., & Profatilov, V. I. (2002). Avtomatizatsiya kontrolya parametrov neytralnykh rele zheleznodorozhnoy avtomatiki. Informatsiino–keruiuchi systemy na zaliznychnomu transporti – Information and Control Systems for Railway Transport, 4, 5, 83-86.
Havryliuk, V., & Dub, V. Y. (2006). Diagnostirovaniye releyno-kontaktnykh ustroystv zheleznodorozhnoy avtomatiki. Vіsnyk Dnіpropetrovskoho natsionalnoho universytetu zalіznnychnoho transportu іmeni akademika V. Lazaryana, 12, 7-11.
Dub, V. Y. (2009). Diagnostirovaniye sostoyaniya rele s ispolzovaniyem isskustvennykh neyronnykh setey. Vіsnyk Dnіpropetrovskoho natsionalnoho universytetu zalіznnychnoho transportu іmeni akademika V. Lazaryana, 29, 126-130.
Korsunskiy, G. M., Mironenko, A. F., & Fedorets, P. S. (1979). Primeneniye metoda ostsillograficheskogo analiza dinamicheskikh kharakteristik elektromagnitnykh rele dlya yego tekhnicheskoy diagnostiki. Tekhnika sredstv svyazi. Seriya: Tekhnika provodnoy svyazi: nauchno-tekhnicheskiy sbornik, 5(38), 41-50.
Slivinskaya, A. G. (1972). Elektromagnity i postoyannyye magnity. Moscow: Energiya.
Chui, J. T. (1992). An Introduction to Wavelets. Pennsylvania: Academic Press.
Daubechies, I. (1992). Ten Lectures on Wavelets. CBMS-NSF Regional Conference Series in Applied Mathematics. Philadelphia.
Dub, V., & Gavrilyuk, V. (2009). Development of neural network program for automated testing of railway contact blocks. Archives of Transport System Telematics, 2(2), 16-18.
Raulet, M. A., Sixdenier, F., & Marion, R. (2007). Electromagnetic relay modelling: a multi physics problem. Part 2: Dynamical behavior of the relay. Paper presented at Compumag, 2007: 16th Intern. Conf. on the Computation of Electromagnetic Fields, Aachen.
Laboreo, E. R., Sagues, C., & Llorente, S. (2016). A New Model of Electromechanical Relays for Predicting the Motion and Electromagnetic Dynamics. IEEE Transactions on Industry Applications, 52(3), 2545-2553. doi:10.1109/TIA.2016.2518120
Mallat, S. G. (1989). A theory for multiresolution sig-nal decomposition: the wavelet representation. IEEE Transaction on Pattern Analysis and Machine Intelligence, 11(7), 674-693. doi:10.1109/34.192463
Mallat, S. G. (1999). A Wavelet Tour of Signal Processing Representation. San Diego: Academic Press, Elsevier.
Henrotte, F., Nicolet, A., Hedia, H., Genon, A., & Legros, W. (1994). Modeling of electromechanical relays taking into account movement and electrical circuits. IEEE Transactions on Magnetics, 30(5), 3236-3239. doi:10.1109/20.3126275
Wattiaux, D., & Verlinden, O. (2011). Modelling of the dynamic behavior of electromechanical relays for the analysis of sensitivity to shocks and vibrations. Experimental Mechanics, 51(9), 1459-1472. doi:10.1007/s11340-011-9478-z
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2021 V. I. Havryliuk
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright and Licensing
This journal provides open access to all of its content.
As such, copyright for articles published in this journal is retained by the authors, under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0). The CC BY license permits commercial and non-commercial reuse. Such access is associated with increased readership and increased citation of an author's work. For more information on this approach, see the Public Knowledge Project, the Directory of Open Access Journals, or the Budapest Open Access Initiative.
The CC BY 4.0 license allows users to copy, distribute and adapt the work in any way, provided that they properly point to the author. Therefore, the editorial board of the journal does not prevent from placing published materials in third-party repositories. In order to protect manuscripts from misappropriation by unscrupulous authors, reference should be made to the original version of the work.
