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Influence of the rotor eccentricity on the torque of a cage induction machine

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The non-uniform air gap in an electrical machine caused by rotor eccentricity creates an asymmetrical flux-density distribution in the air gap. This can affect the nominal torque produced by the machine. Eccentricity also produces forces that act on the rotor which may also have an effect on the torque. Thus, it is important to know how the torque of the machine behaves. In this paper, the torque of a cage induction machine is studied when the machine has dynamic eccentricity. The study is performed using the finite element method and a magnetic vector potential formulation. The torque is calculated by the method of energy balance. The harmonic components of the torque are also analyzed. The results show that the machine under eccentricity does not exhibit the same torque as a normal healthy machine. The harmonic components around the first principal slot harmonic is most affected.
Rocznik
Strony
383--396
Opis fizyczny
Bibliogr. 23 poz., rys., tab., wz.
Twórcy
autor
  • Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland
autor
  • Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland
  • Department of Electrical Engineering, Tampere University of Technology P.O. Box 692, FI-33101, Tampere, Finland
autor
  • Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland
autor
  • Department of Electrical Engineering and Automation, Aalto University P.O. Box 13000, FI-00076 AALTO, Finland
Bibliografia
  • [1] Arkkio A., Antila M., Pokki K., Simon A., Lantto E., Electromagnetic force on a whirling cage rotor, IEE Proceedings on Electric Power Applications, vol. 147, n. 5, pp. 353-360 (2000).
  • [2] Tenhunen A., Benedetti T., Holopainen T.P., Arkkio A., Electromagnetic forces in cage induction motors with rotor eccentricity, International Electric Machines and Drives Conference 2003, vol. 3, pp. 1616-1622 (2003).
  • [3] Arkkio A., Nepal B.R., Sinervo A., Electromechanical interaction in a synchronous reluctance machine, SPEEDAM 2010, pp. 501-506 (2010).
  • [4] Dorrell D.G., Smith A.C., Calculation of UMP in induction motors with series or parallel winding connections, IEEE Transactions on Energy Conversion, vol. 9, no. 2, pp. 304-310 (1994).
  • [5] Smith A.C., Dorrell D.G., Calculation and measurement of unbalanced magnetic pull in cage induction motors with eccentric rotors, I. Analytical model, IEE Proceedings on Electric Power Applications, vol. 143, no. 3, pp.193-201 (1996).
  • [6] Dorrell D.G., Smith A.C., Calculation and measurement of unbalanced magnetic pull in cage induction motors with eccentric rotors. II. Experimental investigation, IEE Proceedings on Electric Power Applications, vol. 143, no. 3, pp. 202-210 (1996).
  • [7] Dorrell D.G., Chindurza I., Cossar C., Effects of rotor eccentricity on torque in switched reluctance Machines, IEEE Transactions on Magnetics, vol.41, no. 10, pp. 3961-3963 (2005).
  • [8] Sheth N.K., Rajagopal K.R., Effects of nonuniform airgap on the torque characteristics of a switched reluctance motor, IEEE Transactions on Magnetics, vol. 40, no. 4, pp. 2032-2034 (2004).
  • [9] Belahcen A., Arkkio A., Computation of additional losses due to rotor eccentricity in electrical machines, IEE Proceedings on Electric Power Applications, vol. 4, no. 4, pp. 259-266 (2009).
  • [10] Dorrell D.G., The influence of rotor eccentricity on the output torque of cage induction motors, International Conference on Electrical Machines, Paris, vol. 1, pp. 35-40 (1994).
  • [11] Faiz J., Ebrahimi B.M., Akin B., Toliyat H.A., Dynamic analysis of mixed eccentricity signatures at various operating points and scrutiny of related indices for induction motors, IET Proceedings on Electric Power Applications, vol. 4, no. 1, pp. 1-16 (2010).
  • [12] Faiz J., Ebrahimi B.M., Akin B., Toliyat H.A., Finite-Element Transient Analysis of Induction Motors Under Mixed Eccentricity Fault, IEEE Transactions on Magnetics, vol. 44, no. 1, pp. 66-74 (2008).
  • [13] Polat A., Ertuğrul Y.D., Ergene L.T., Static, dynamic and mixed eccentricity of induction motor, IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), pp. 284-288 (2015).
  • [14] Sadowski N., Lefevre Y., Lajoie-Mazenc M., Cros, J., Finite element torque calculation in electrical machines while considering the movement, IEEE Transactions on Magnetics, vol. 28, no. 2, pp. 1410-1413 (1992).
  • [15] Marinescu M., Marinescu N., Numerical computation of torques in permanent magnet motors by Maxwell stresses and energy method, IEEE Transactions on Magnetics, vol. 24, no. 1, pp. 463-466 (1988).
  • [16] Reichert K., Freundl H., Vogt W., The calculation of forces and torques within numerical magnetic field calculation methods, Proceedings of COMPUMAG. Oxford, 31 March – 2 April 1976, Rutherford Laboratory, pp. 64-73 (1976).
  • [17] Coulomb J.L., A methodology for the determination of global electromechanical quantities from a finite element analysis and its application to the evaluation of magnetic forces, torques and stiffness, IEEE Transactions on Magnetics, vol. 19, no. 6, pp. 2514-2519 (1983).
  • [18] Silwal B., Rasilo P., Perkkiö L., Hannukainen A., Eirola T., Arkkio A., Numerical analysis of the power balance of an electrical machine with rotor eccentricity, IEEE Transactions on Magnetics, vol. 52, no. 3, pp. 1-4 (2016).
  • [19] Silwal B., Rasilo P., Perkkiö L., Oksman M., Hannukainen A., Eirola T., Arkkio A., Computation of torque of an electrical machine with different types of finite element mesh in the air gap, IEEE Transactions on Magnetics, vol. 1, no. 6, pp. 1-9 (2014).
  • [20] Arkkio A., Analysis of induction motors based on the numerical solution of the magnetic field and circuit equations, Acta Polytechnica Scandinavica (1987).
  • [21] Früchtenicht J., Jordan H., Seinsch H.O., Exzentnzitätsfelder als ursache von laufinstablilitäten bei asynchron-machinen. Parts 1 and 2, Archiv für Electrotechnik (in German), vol. 65, pp. 271-292 (1982).
  • [22] Nandi S., Bharadwaj R.M., Toliyat H.A., Parlos A.G., Performance analysis of a three phase induction motor under mixed eccentricity condition, IEEE Transactions on Energy Conversion, vol. 17, no. 3, pp. 392-399 (2002).
  • [23] Silwal B., Rasilo P., Haavisto A., Belahcen A., Arkkio A., Measurement of torque harmonics of a cage induction machine under rotor eccentricity, In Proceedings of International Conference on Electrical Machines and Systems, Pattaya, pp. 98-102 (2015).
Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-cb675faf-27e2-4d3a-af0d-2deedb6a3ea1
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