Operation of autonomous electromechanical converters of low and medium power
DOI:
https://doi.org/10.15588/1607-6761-2025-1-1Keywords:
autonomous electromechanical converters, power generating devices, operation, energy efficiency, reliability, maintenance, power supply, generator systemsAbstract
Purpose. To assess the reliability of operation of low and medium power electromechanical converters based on real experience in operating such systems.
Methodology. Statistical analysis methods, classical calculation methods for synchronous salient pole generators with electromagnetic excitation.
Findings. An analysis of failure statistics of autonomous electromechanical converters of small and medium power was carried out. The results obtained emphasize the need to implement generator condition monitoring systems for early detection of malfunctions. Regular diagnostics and load control will help prevent critical breakdowns and increase the service life of the equipment. The collected statistical data can be used to develop effective preventive measures, improve maintenance instructions and optimize generator operating modes. Further research can be aimed at developing algorithms for automatic load distribution between phases, improving protection systems and increasing the reliability of insulating materials. An analysis of the failure statistics of diesel and gasoline generators showed that electrical breakdowns account for 51% of cases, and mechanical ones - 49%. This indicates an approximately even distribution between the two categories of failures, which indicates the need for a comprehensive approach to maintenance and diagnostics. When using these installations for military purposes, the balance of failures shifts: mechanical failures: 75-85%, electrical failures: 15-25%. Among electrical failures, the most common are damage to the stator windings due to load asymmetry, failure of voltage regulators, malfunctions of the battery system and violations of the insulation of the electrical wiring. Mechanical failures are most often associated with wear of the piston group, insufficient lubrication, engine overheating due to malfunctions of the cooling system and malfunctions in the fuel system.
Originality. A detailed generalization of the experience of operating autonomous electromechanical converters in real conditions was carried out, which allowed us to establish the regularities of their operation, identify typical problems and develop recommendations for their elimination. The methods for assessing the efficiency of autonomous electromechanical converters proposed in the study can be used for further modernization of existing systems, as well as for creating new highly efficient autonomous power generating units.
Practical value. The results of the study have practical value for engineers, users and manufacturers of electromechanical equipment. The results obtained can be used to improve the efficiency and reliability of autonomous power systems operating in various conditions. In particular, it is possible to reduce maintenance costs, improve energy efficiency and extend the service life of the equipment. The results obtained can be used in the development of recommendations for the selection, modernization and diagnostics of autonomous electromechanical installations.
References
Golovko, V. M., Ostroverkhov, M. Y., Kovalenko, M. A., Kovalenko, I. Y., & Tsyplenkov, D. V. (2022). Mathematical simulation of autonomous wind electric installation with magnetoelectric generator. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 74–79. https://doi.org/10.33271/nvngu/2022-5/074
2. Chumack, V., Bazenov, V., Tymoshchuk, O., Kovalenko, M., Tsyvinskyi, S., Kovalenko, I., & Tkachuk, I. (n.d.). Voltage stabilization of a controlled autonomous magnetoelectric generator with a magnetic shunt and permanent magnet excitation. Eastern-European Journal of Enterprise Technologies, 6(5 (114)), 56–62.
Ostroverkhov, M., Chumack, V., Kovalenko, M., & Kovalenko, I. (2022). Development of the control system for taking off the maximum power of an autonomous wind plant with a synchronous magnetoelectric generator. Eastern-European Journal of Enterprise Technologies, 4(2(118)), 67–78. https://doi.org/10.15587/1729-4061.2022.263432
IEEE. (2010). IEEE standard definitions for the measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, or unbalanced conditions (IEEE Std 1459-2010). IEEE.
Harris, C. R., Millman, K. J., van der Walt, S. J., Gom-mers, R., Virtanen, P., Bastien, T., ... & Oliphant, T. E. (2020). Array programming with NumPy. Nature, 585(7825), 357–362. https://doi.org/10.1038/s41586-020-2649-2
Hunter, J. D. (2007). Matplotlib: A 2d graphics environment. Computing in Science & Engineering, 9(3), 90–95.
Munoz-Galeano, N., Alfonso-Gil, J., Orts-Grau, S., Seguí-Chilet, S., & Gimeno-Sales, F. (2015). Instantaneous approach to IEEE std. 1459 power terms and quality indices. Electric Power Systems Research, 125, 228–234.
Song-Manguelle, J., Ekemb, G., Mon Nzongo, D., Jin, T., & Doumbia, M. (2018). A theoretical analysis of pulsating torque components in ac machines with variable frequency drives and dynamic mechanical loads. IEEE Transactions on Industrial Electronics, 65, 9311–9324.
9. Song-Manguelle, J., Ekemb, G., Schroder, S., Geyer, T., Nyobe-Yome, J.-M., & Wamkeue, R. (2016). Analytical expression of pulsating torque harmonics due to pwm drive. (Журнал или конференция не указаны, пожалуйста, предоставьте эту инфор-мацию).
Chumak, V., Kovalenko, M., Tkachuk, I., & Ko-valenko, I. (2022). Porivniannia synkhronnykh heneratoriv dlia avtonomnoi benzynovoi ustanovky. Visnyk NTU «KhPI». Seriia: Problemy udoskonalennia elekt-rychnykh mashyn I aparativ. Teoriia I praktyka, (2 (8)), 32–38. https://doi.org/10.20998/2079-3944.2022.2.06
Song-Manguelle, J., Nyobe-Yome, J.-M., & Ekemb, G. (2010). Pulsating torques in pwm multi-megawatt drives for torsional analysis of large shafts. IEEE Transactions on Industry Applications, 46, 130–138.
Makedonski, N., & Parushev, P. (2023). Experimental Study of an Autonomous Power Supply System with a Special Type of Electric Drive. 1-6. https://doi.org/10.1109/BulEF59783.2023.10406266
Mingazeva, K. A., Karimov, R., Dmitriev, M. E., Kuskildin, T. R., Tashbulatov, R., & Nurmuhamedov, C. I. (2024). Development of scientific foundations and method of autonomous power and gas supply of remote consumers from gas distribution networks. Petroleum Engineering, 22, 294-303. https://doi.org/10.17122/ngdelo-2024-4-294-303
Serhiienko, V. (2023). Development of autonomous energy supply of a mobile surface degassing plant. Journal of Electrical and Power Engineering, 28, 47-52. https://doi.org/10.31474/2074-2630-2023-1-47-52
Fedotov, A., Misbakhov, R., Chernova, N., & Bakhteev, K. (2019). Utilization of electrochemical energy storage devices in autonomous power supply systems. IOP Conference Series: Materials Science and Engineering, 643, 012105. https://doi.org/10.1088/1757-899X/643/1/012105
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Copyright (c) 2025 M.A. Kovalenko, I.Y. Kovalenko, Y.O. Titov, O.O. Bazarov

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