| Autor: |
Pirmatov, N., Bekishev, A., Egamov, A., Shernazarov, S., Isakov, F., Zubaydullayev, M. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2612 Issue 1, p1-7, 7p |
| Abstrakt: |
The article presents mathematical models of the processes of self-calibration of a synchronous generator with traditional and biaxial excitation. As you know, self-swinging is a type of electromechanical instability of a generator, when its rotor, rotating at the main operating speed at a certain value of the angle, exhibits oscillatory changes in speed and angle with increasing amplitude up to falling out of synchronism. Oscillatory changes in the speeds and angles of the rotors of generators with non-increasing amplitudes can also occur in the power system. Such changes are known as synchronous oscillators. Self-swinging generators can appear for various reasons. Of these, three generalized reasons are distinguished, namely, the presence of a large active resistance in the stator circuit, the presence of a dead zone or a delay in the action of the ARV device, and incorrect adjustment of the ARV device. The differential equations of the synchronous generator were solved using the Mathcad program using the Cauchy method, and the results were compared graphically. The results show that a biaxial synchronous generator differs from a traditional synchronous generator in that the self-swinging transients are damped and tend to enter synchronism quickly. It is shown that the static and dynamic stability of synchronous generators with longitudinal-transverse excitation is much higher than that of conventional synchronous generators with traditional excitation because synchronous generators with longitudinal-transverse excitation have a good electromagnetic coupling of the stator and rotor and the ability to change the magnetization angle in them. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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