| Issue |
E3S Web of Conf.
Volume 525, 2024
IV International Conference on Geotechnology, Mining and Rational Use of Natural Resources (GEOTECH-2024)
|
|
|---|---|---|
| Article Number | 03008 | |
| Number of page(s) | 6 | |
| Section | Energy Saving and Energy Efficiency of Mining Enterprises, Other Industries and Transport Infrastructure | |
| DOI | https://doi.org/10.1051/e3sconf/202452503008 | |
| Published online | 20 May 2024 | |
Study of subharmonic oscillation processes in ferroresonance circuits
1 Navoi State University of Mining and Technologies, Navoi, Uzbekistan
2 Tashkent State Technical University, Tashkent, Uzbekistan
* Corresponding author: tovboyev70@mail.ru
The article presents a general theory of the analysis of subharmonic oscillations at a frequency of 25 Hz in three-phase Ferro resonance circuits with common magnetic conductors. The abbreviated equations are obtained by averaging with the corresponding phases. From the condition of the existence of a periodic solution, the phase and amplitude ratios of the excited oscillations are determined, which differ from threephase circuits with a separate ferromagnetic element. In steady-state mode, the excitation conditions and the area of existence are determined depending on the parameters of the circuit, the bias current and the applied action. The stability of the solution of the initial system of nonlinear second-order differential equations is also studied by analysing the roots of the characteristic equation using a qualitative method. In the theory of nonlinear electrical circuits, the analysis of the physical processes occurring in threephase Ferro resonance circuits during the excitation of second-order subharmonic oscillations is of particular importance in the design and creation of various converter devices.
© The Authors, published by EDP Sciences, 2024
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