Abstract
A method of sensorless rotor position control in noncontact bearings by output parameters of the electromechanical energy converter is proposed. The physical essence of the method is as follows. As the displacement of an electromechanical energy converter rotor along the axes x and y varies, the conductivity of the air gap and, accordingly, of the magnetic conductivity of the air gap changes; i.e., in the case of the rotor displacement, additional harmonic components of the magnetic induction occur that create additional harmonic components of the electromotive force. The estimation of these harmonic components makes it possible to determine the displacement of the rotor without the use of rotor position sensors. The mathematical apparatus and the sensorless rotor position control algorithm based on this apparatus have been developed for practical implementation of the proposed method.
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V. E. Vavilov, A. A. Gerasin, and F. R. Ismagilov, “An algorithm for controlling hybrid magnetic bearings using the magnetic field pattern” J. Comput. Syst. Sci. Int., 52, 794–799 (2013).
T. Schuhmann, “Optimale Zustandsschätzung und Regelung an Magnetlagern mit Integriertenmkapazitiven Lagesensoren,” PhD Thesis (Technishe Universität, Dresden, 2011).
V. Iannello, “Sensor-less position detector for foreign patent documents an active magnetic bearing,” US Patent No. 5696412 H02K 7/09, (1997).
B. Toshimitsu and T. Yoshida, “Sensorless magnetic bearing apparatus,” EP Patent No. 2 083 183 A2 F16C 32/04.2009, (2009).
N. G. Nikiyan and M. E. Iondem, “Determining the rotor eccentricity of asynchronous machined given the EMF magnitude of higher harmonics,” Izv. Vyssh. Uchebn. Zaved., Elektromekh., No. 11 (1991).
A. A. Gerasin, F. R. Ismagilov, I. Kh. Khairullin, et al., “A simulation model of electromechanical energy transformers with regard to processes in bearing assemblies,” Sborka v Mashinostroenii, Priborostroenii, No. 2, 35–39 (2013).
I. P. Kopylov, Designing Electrical Machines, Vol. 1 (Vysshaya shkola, Moscow, 1993) [in Russian].
I. N. Bronshtein, Handbook of Mathematics for Engineers and Students, 13th ed. (Nauka, Moscow, 1986) [in Russian].
B. Heller and V. Hamata, Harmonic Field Effects in Induction Machines (Academia, Prague, 1977; Energiya, Moscow, 1981).
B. Heller and A. Veverka, Stosserscheinungen in Elektrischen Maschinen (VEB Verlag Technik, Berlin, 1957; Gosenergoizdat, Leningrad, 1960).
Yu. A. Gaidenko and T. S. Vishnevskii, “A method for electromagnetic diagnosis of the static rotor eccentricity in a synchronous generator,” Gidroenergetika Ukrainy, No. 2, 52–57 (2011).
A. Sizyakin and M. Rumyantsev, “Doing without rotor position sensor: Solutions of IR company for controlling a brushless electric motor,” Novosti Elektroniki, No. 10 (2011).
V. E. Vavilov, A. A. Gerasin, and F. R. Ismagilov, “Stability analysis of hybrid magnetic bearings,” Syst. Sci. Int., 53, 130–136 (2014).
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Original Russian Text © V.E. Vavilov, R.A. Gaisin, A.A. Gerasin, F.R. Ismagilov, I.Kh. Khairullin, 2015, published in Izvestiya Akademii Nauk. Teoriya i Sistemy Upravleniya, 2015, No. 3, pp. 88–96.
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Vavilov, V.E., Gaisin, R.A., Gerasin, A.A. et al. Sensorless control of hybrid magnetic bearings. J. Comput. Syst. Sci. Int. 54, 415–423 (2015). https://doi.org/10.1134/S1064230715020124
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DOI: https://doi.org/10.1134/S1064230715020124