Abstract
A device is proposed for diagnostics of the rotor-shaft eccentricity in an electrical machine. Its sensitivity does not depend on the fluctuations of the grid parameters or the load of the electrical machine, since the rotor displacement is monitored by means of the capacitance of sensors placed uniformly around the circumference at each end of the shaft. The diagnostic results are assessed in terms of two criteria. The device determines not only the eccentricity of the rotor but also its direction of displacement.
Similar content being viewed by others
REFERENCES
Novozhilov, A.N., Andreeva, O.A., and Kislov, A.P., Energy consumption of an asynchronous motor during the cliff bars and short-circuit rotor eccentricity, Vestn. Pavlodar. Gos. Univ., 2004, no. 1, pp. 204–217.
Novozhilov, A.N., Yussupova, A.O., and Novozhilov, T.A., A service for determining the rotor eccentricity of rotating electric machines, Russ. Electr. Eng., 2019, vol. 90, no. 2, pp. 121–124.
Raschet eleketricheskoi emkosti (Calculation of Electrical Capacity), Iossel’, Yu.Ya., Kochanov, E.S., and Strunskii, M.G., Eds., Moscow: Energoizdat, 1948.
Grinberg, G.A., Izbrannye voprosy matematicheskoi teorii elektricheskikh i magnitnykh yavlenii (Selected Issues of Mathematical Theory of Electric and Magnetic Events), Moscow: Akad. Nauk SSSR, 1948.
Turowski, J., Obliczenia Elektromagnetyczne Elementów Maszyn i Urządzeń Elektrycznych, Warsaw: Wyd. Nauk.-Tech., 1982.
Beker, L., Maralani, A., Lin, L., and Pisano, A.P., Modeling, fabrication, and characterization of SiC concentrically matched differential capacitance output pressure sensors, Sens. Actuators, A, 2018, vol. 273. pp. 293–302.
Hu, H.L., Xu, T.M., and Hui, S.E., A high-accuracy, high-speed interface circuit for differential-capacitance transducer, Sens. Actuators, A, 2006, vol. 125, no. 2, pp. 329–334.
Glushko, I.N., RF Patent 1810745, 1993.
Ismagilov, F.R., Khairullin, I.Kh., Pashali, D.Yu., and Boikova, O.A., Overview of modern methods and means of operative diagnostics of electromechanical energy converters, Vestn. Ufimsk. Gos. Aviats. Tekh. Univ., 2010, vol. 14, no. 4 (39), pp. 73–79.
Novozhilov, A.N., Yussupova, A.O., and Novozhilov, T.A., Selection of the type of capacitive measuring transducer for diagnostics of the eccentricity of the rotor of an electric machine, Materialy Mezhdunarodnoi nauchnoi konferentsii “17-ye Satpaevskie chteniya” (Proc. Int. Sci. Conf. “Satpaev’s Readings–2017”), Pavlodar: Kereku, 2017, vol. 19, pp. 133–138.
Novozhilov, A.N., Polishchuk, V.I., and Isupova, N.A., Overview of methods for diagnostics of the rotor eccentricity of an alternating current machine, Izv. Vyssh. Uchebn. Zaved., Elektromekh., 2011, no. 6, pp. 26–29.
Bessonov, L.A., Teoreticheskie osnovy elektrotekhniki (Theoretical Foundations of Electrical Engineering), Moscow: Vysshaya Shkola, 1967.
Baksheev, N.V., Gryuner, A.I., Sobachinskii, L.K., and Doronina, G.A., USSR Inventor’s Certificate no. 1332466, 1987.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by B. Gilbert
About this article
Cite this article
Novozhilov, A.N., Yusupova, A.O. & Potapenko, A.O. Modeling the Electrical Capacitance of Monitoring Sensors. Russ. Engin. Res. 41, 1135–1139 (2021). https://doi.org/10.3103/S1068798X21120315
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3103/S1068798X21120315