P-Q Circle Diagram Based Parameter Measurement for Permanent Magnet Synchronous Motor Including Iron Loss

  • Urasaki, Naomitsu (Dept. of Electrical and Electronics Eng., The University of the Ryukyus) ;
  • Senjyu, Tomonobu (Dept. of Electrical and Electronics Eng., The University of the Ryukyus) ;
  • Uezato, Katsumi (Dept. of Electrical and Electronics Eng., The University of the Ryukyus)
  • Published : 2003.01.01

Abstract

This paper presents parameter measurement for permanent magnet synchronous motors based on the P-Q circle diagram. Three electrical parameters of permanent magnet synchronous motors, i.e., the equivalent iron loss resistance, armature inductance, and electrical motive force (emf) coefficient are simultaneously measured. The advantages of this method are that it can be implemented under constant excitation and it dispenses with the generating test for the emf coefficient. The proposed method is applied to a 160w permanent magnet synchronous motor, and then the measurement results are analyzed.

Keywords

References

  1. T. Mizuno, J. Takayama, T. Ichioka, and M. Terashima, 'Decoupling control method of induction motor taking stator core loss into consideration', in Proc. IPEC-Tokyo, pp. 69-74, Tokyo, 1990
  2. E. Levi, 'Impact of iron loss on behavior of vector controlled induction machines', IEEE Trans. Ind. Appl., Vol. 31, No.6, pp. 1287-1296, Nov./Dec. 1995 https://doi.org/10.1109/28.475699
  3. J. Jung and K. Nam, 'A vector control scheme for EV induction motors with a series iron loss model', IEEE Trans. Ind. Electron., Vol. 45, No.4, pp. 617-624, Aug. 1998 https://doi.org/10.1109/41.704890
  4. L. Xu, X. Xu, T.A. Lipo, and D.W. Novotny, 'Vector control of a synchronous reluctance motor including saturation and iron losses', IEEE Trans. Ind. Appl., Vol. 27, No.5, pp. 977-984, Sep./Oct. 1991 https://doi.org/10.1109/28.90356
  5. A. Vagati, M. Pastorelli, G. Franceschini, and V. Drogoreanu, 'Flux-observer-based high-performance control of synchronous reluctance motors by including cross saturation', IEEE Trans. Ind. Appl., Vol. 35, No.3, pp. 597-605, May/June 1999 https://doi.org/10.1109/28.767010
  6. T. Senjyu, T. Shimabukuro, and K. Uezato, 'Vector control of synchronous permanent magnet motors including stator iron loss', Int. J. Electronics, Vol. 80, No. 2, pp. 181-190, 1996 https://doi.org/10.1080/002072196137381
  7. A. Ah. Fock and P.M. Heart, 'New Method for Measuring $X_d$ and $X_q$ Based on the P-Q Diagram of the Lossy Salient-Pole Machine', Proc. IEE-Elec. Power Appl., Vol. 131, Pt. B, No. 6, pp. 259-262, Nov. 1984