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Conformal mapping approach for permanent magnet synchronous machines: on the modeling of saturation

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Języki publikacji
EN
Abstrakty
EN
In the electromagnetic field simulation of modern servo drives, the computation of higher time and space harmonics is essential to predict torque pulsations, radial forces, ripple torques and cogging torque. Field computation by conformal map ping (CM) techniques is a time-effective method to compute the radial and tangential field components. In the standard CM approach, computational results of cogging torque simulations as well as overload operations observe deviations to nonlinear finite element (FE) simulations due to the neglection of slot leakage and saturation effects. This paper presents an extension of the classical CM. Additional CM parameters are computed from single finite element computations so as to consider both effects listed above in the model over a wide operation range of the electrical drive. The proposed approach is applied to a surface permanent magnet synchronous machine (SM-PMSM), and compared to numerical results obtained by finite element analysis (FEA). An accuracy similar to that of FE simulations is obtained with however the low computation time that is characteristic for analytical models.
Rocznik
Strony
211--220
Opis fizyczny
bibliogr. 11 poz., tab., rys.
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autor
autor
autor
Bibliografia
  • [1] Zhu Z., Howe D., Instantaneous magnetic field distribution in brushless permanent magnet DC motors. III. effect of stator slotting. Magnetics, IEEE Transactions on 29(1): 143-151 (1993).
  • [2] Zhu Z., Howe D., Chan C., Improved analytical model for predicting the magnetic field istribution in brushless permanent-magnet machines. Magnetics, IEEE Transactions on 38(1): 229-238 (2002).
  • [3] Hanselman D.C., Brushless Permanent Magnet Motor Design. (2nd ed.) The Writers’ Collective (2003).
  • [4] Zarko D., Ban D., Lipo T.A., Analytical calculation of magnetic field distribution in the slotted air gap of a surface permanent-magnet motor using complex relative air-gap permeance. Magnetics, EEE Transactions on 42(7): 1828-1837 (2006).
  • [5] Zarko D., Ban D., Lipo T.A., Fellow, IEEE Analytical solution for cogging torque in surface Permanent- Magnet motors using conformal mapping. Magnetics, IEEE Transactionson 44(1): 52-65 (2008).
  • [6] Binns K.J., Analysis and computaion of electric and magnetic field problems. Pergamon Press, New York (1963).
  • [7] Wu L., Zhu Z., Staton D. et al. Comparison of analytical models for predicting cogging torque In surface-mounted PM machines. [In:] Electrical Machines (ICEM), XIX International Conference on, 2010, pp. 1-6 (2010).
  • [8] van Riesen D., Monzel C., Kaehler C. et al. iMOOSE-an open-source environment for finiteelement calculations. Magnetics, IEEE Transactions on 40(2): 1390-1393 (2004).
  • [9] K. Oberretl, Die Berechnung des Streuflusses im Luftspalt von elektrischen Maschinen mit Käfigoder Dämpferwicklungen Teil 1: Theorie und Berechnungsmethoden. Archiv fhr Elektrotechnik Berlin 69(1): 11-22 (1986), compendex.
  • [10] Walker J.A., Dorrell D.G., Cossar C., Flux-linkage calculation in permanent-magnet motors using the frozen permeabilities method. IEEE Transactions on Magnetics 41(10): 3946- 3948 (2005).
  • [11] Zarko D., A systematic approach to optimized design of permanent magnet motors with reduced torque pulsations. Ph.D.-Thesis, University of Wisconsin, Madison (2004).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPS4-0002-0094
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