Determining the Switching Frequency of a Transistor Converter for a Traction Collector Motor
Keywords:
energy efficiency, rolling stock, traction electric motor, traction system, semiconductor converter, switching frequencyAbstract
The purpose of this work is to determine the switching frequency of a transistor converter for a traction collector motor of a locomotive based on the criterion of permissible current ripple. The stated goal is achieved by solving the following problem: a methodology for determining the consideration of changes in motor parameters when calculating the switching frequency of the transistor converter is proposed. The peculiarity of the proposed approach is that it takes into account the degree of saturation of individual parts of the magnetic system of the electric motor. The most significant result is an increase in the accuracy of calculating the switching frequency by taking into account the change in the inductance of the commutator motor windings when the degree of saturation of the magnetic system changes. The switching frequency for a DC traction motor with a pulse converter is calculated. Two main operating modes of the electric motor are considered: with full magnetic flux and with weakened magnetic flux. As a result of calculations, it was established that the dependence of switching frequency on currents is nonlinear. For the operating mode of the electric motor with full magnetic flux, the switching frequency is determined taking into account the processes in the field winding circuits and in the armature circuit windings. The most important results are the determination of the switching frequency of the pulse converter for powering and regulating the traction motor in all operating modes. The proposed methodology allows the selection of transistor devices for the converter according to the switching frequency.
References
Tartakowsky, E. D., Aulin, D. O., Kovalenko, D. M. & Kotov M.O. (2019). Energy-Saving Technologies in Locomotive Engineering. In textbook, Part 1. Kharkiv: Ukrainian State University of Railway Transport, 130 p. [in Ukrainian].
Goolak, S., I. Kostenko, Nezlina, O., Riabov, & Ie., Demydov O. (2023, October). Improvement of Locomotives for Shunting Work. In Transport Means proceedings of the 27th International Scientific Conference Transport Means 2023, (pp. 202-206). https://doi.org/10.32703/2617-9059-2023-41-1.
Roi S., Kachan A., Tykhonov A., Yeritsyan B., Riabov I. (2023, October). Analysis of Operating Modes of Shunting Locomotives at Industrial Enterprises. In Transport Means proceedings of the 27th International Scientific Conference Transport Means 2023, (pp. 554-557). https://doi.org/10.32703/2617-9059-2023-41-1.
Honc, R. L., Fritz, S. G., Osborne, D. T., Grisier, R., & Carpenter, S. (2009, January). Exhaust emissions and fuel consumption of a railpower RP20BD switcher locomotive. In Internal Combustion Engine Division Spring Technical Conference (Vol. 43406, pp. 379-387). https://doi.org/10.1115/ICES2009-76026.
Lysenko, Y., Chernyshenko, Y., Iakunin, D., Demydov, O. & Riabov, Ie. (2023, October). Analysis of Multi-Diesel Shunting Locomotives' Traction Systems. In Transport Means proceedings of the 27th International Scientific Conference Transport Means 2023, (pp. 397-401). https://doi.org/10.5755/e01.2351-7034.2023.
Shpika ,M. I., Andriichenko, V. P. & Besarab A. I. (2015). Improvement of Technical Efficiency and Energy Performance of the Tram Wagon Traction Electric Drive System. Collection of scientific papers UkrDUZT, 153, 90-98. [In Ukrainian]. https://doi.org/10.18664/1994-7852.153.2015.64177.
Karachuk S. V. Analysis of Traction Electric Drive Systems for Electric Rolling Stock. (2016). Collection of scientific papers DETUT. Seriia "Transport Systems and Technologies", 29, 96-106. [in Ukrainian].
Kostenko, I., Nezlina, O., Maliuk, S., Lysenko, Y., & Popovich, D. (2024). Development of the traction system structure of a shunting diesel locomotive with a hybrid power supply scheme. Transport systems and technologies, (43), 100-110. https://doi.org/10.32703/2617-9059-2024-43-8.
Riabov, I., Goolak, S., Kondratieva, L., & Overianova, L. (2023). Increasing the energy efficiency of the multi-motor traction electric drive of an electric locomotive for railway quarry transport. Engineering Science and Technology, an International Journal, 42, 101416. https://doi.org/10.1016/j.jestch.2023.101416.
Andriichenko, V. P., Zakurday, S. O. & Kostenko, I. O. (2014). Improvement of the Method for Regulating Excitation of DC Traction Motors. Eastern-European Journal of advanced technologies, 67, 31-35. [in Ukrainian].
Mohamed, A. (2022). Using Separately Excited DC Motor in Railway Vehicles Systems. Journal of Electrical Engineering, 22(1), 106-111.
Flora, V. D. (2001). Determination of the Switching Frequency of a Pulse Converter. Radio Electronics, Computer Science, Control, 2, 46-48. [in Ukrainian].
Kovalov, V., & Kovalova, Yu. (2022). Minimization Electric Losses in Transistor DC Drives. Problemele Energeticii Regionale, 56(4), 39-46. https://doi.org/10.52254/1857-0070.2022.4-56.04.
Goolak, S., Sapronova, S., Tkachenko, V., Riabov, Ie. & Batrak, Ye. (2020). Improvement of the Model of Power Losses in the Pulsed Current Traction Motor in an Electric Locomotive. Eastern-European Journal of Enterprise Technologies, 6(5(108)), 38–46. https://doi.org/10.15587/1729-4061.2020.218542.
Goolak, S., Riabov, Iev., Tkachenko, V., Sapronova, S. & Rubanik, I. (2021) Model of pulsating current traction motor taking into consideration magnetic losses in steel. Electrical Engineering & Electromechanics, (6), 11–17. https://doi.org/10.20998/2074-272X.2021.6.02.
Goolak, S., Gerlici, J., Tkachenko, V., Sapronova, S., Lack, T. & Kravchenko, K. (2019). Determination of parameters of asynchronous electric machines with asymmetrical windings of electric locomotives. Communications-Scientific letters of the University of Zilina, 21(2), 24-31. http://doi.org/10.26552/com.C.2019.2.24-31
Kharchenko, V., Kostenko, I., Liubarskyi, B., Shaida, V., & Kuravskyi, M. (2020). Simulating the traction electric drive operation of a trolleybus equipped with mixed excitation motors and a DC-DC converter. Eastern-European Journal of Enterprise Technologies, vol. 3, no. 9(105), pp. 46-54. https://doi.org/10.15587/1729-4061.2020.205288.
Sobor, I., Nuca, I., & Râmbu, V. (2007). Parameters and characteristics determination of comounde DC motor. Analele Universitatii din Craiova-Seria Inginerie electrica, 32(1), pp. 21-24.
Ioffe, A.B. (1965). Traction Electric Machines (Theory, Construction, Design). Energia.
Gavrilov, Ya.I. & Mnatsakanov V. A (1986). Metro cars with pulse regulation. Transport.
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