Keywords
circuit-field mathematical model
vibration-disturbing forces
eccentricity of rotor
diagnostic features турбогенератор
коло-польова модель
віброзбуджуючі сили
індукована густина струму
ексцентриситет ротора
діагностичні ознаки
How to Cite
Abstract
Updated a mathematical model for calculating of electromagnetic vibration-disturbing forces of turbo-generator by the rotor eccentricity with the influence of the defect on the rotor currents of the stator winding. It is shown that in the simulation should take into account the eccentricity of the phase winding of current asymmetry hundred-torus. Determined that when a static array of eccentricity of the rotor surface induced eddy currents. Identify new diagnostic features eccentricity occurrence by analyzing the spectrum of vibration-disturbing forces harmonics of rotating frequency and multiples thereof. References 5, table 1, figures 5.
References
Vaskovskyi Yu.M., Melnyk А.М. The electromagnetic vibration disturbing forces of turbogenerator in maneuverable operating conditions // Tekhnichna Elektrodynamika. – 2016. – No 2. – Pp. 35 – 41. (Ukr)
Vaskovskyi Yu.M., Melnyk A.M., Tytko O.I. Electromagnetic vibration disturbing forces at the eccentricity of rotor of turbogenerator // Elektrotekhnika i Elektromekhanika. – 2016. – No 4. – Pp. 16 – 21. (Ukr)
Haidenko Yu.A., Vishnevskyi T.S. Electromagnetic method of diagnostic of static eccentricity of synchronous generator // Hidroenerhetyka Ukrainy. – 2011. – No 2. – Pp. 52–57. (Rus)
B. Ge, W. Guo, J. Guo, D. Zhang Negative-sequence eddy current field calculation for the world’s first AP1000 nuclear half-speed generator // International Journal of Control and Automation. – 2015. – Vol. 8. – No 6. – Pp. 177 – 186.
M. Biet, A. Bijeire. Rotor faults diagnosis in synchronous generators using feature selection and nearest neighbors rule // Proc. IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics and Drivers Conf. –
– Pp. 300 – 306.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2022 Array