A Comparative Analysis of Test Methods of Measuring d- and q-Axes Inductances for Interior Permanent Magnet Synchronous Motor

매입형 영구자석 동기전동기의 인덕턴스 측정법 비교 분석

  • Published : 2009.05.01

Abstract

The performance analysis and robust control of the interior permanent magnet synchronous motor(IPMSM) greatly depend on accurate value of its parameters. To achieve the high performance of torque control, it is necessary to consider exact inductance values because the inductances are nonlinear parameters of operating the IPMSM. Therefore many different methods have been performed for analysis of the methodology for the exact measurement of synchronous inductances. None of them is considered standard, and accuracy levels of all these methods are also not consistent. Among these experimental methods, the DC current decay test and the vector current control test are ideal for a laboratory environment. In this paper, these two test methods are compared by applying inductances to the IPMSM. The paper analyzes the measured inductances of the two methods and their differences with inductances obtained from the finite element method(FEM).

Keywords

References

  1. R. Dutta and M. F. Rahman, 'A Comparative Analysis of Two Test Methods of Measuring d- and q-Axes Inductances of Interior Permanent-Magnet Machine,' IEEE Trans. Magn., Vol. 42, no. 11, pp. 3712-3718, Nov. 2006 https://doi.org/10.1109/TMAG.2006.880994
  2. G. Kang, J. Hong, G. Kim, and J. Park, 'Improved parameter modeling of interior permanent magnet synchronous motor based on finite element analysis,' IEEE Trans. Magn., Vol. 36, no. 4, pp. 1867-1870, Jul. 2000 https://doi.org/10.1109/20.877809
  3. I. Boldea, 'Reluctance Synchronous Machines and Drives,' Oxford university Press Inc., New York, pp. 83-84, 1996
  4. K. M. Rahman and S. Hiti, 'Identification of machine parameters of a synchronous motor,' in Industry Applications Conf. 38th IAS Annu. Meeting, Vol. 1, Oct. 12-16, 2003, pp. 409-415 https://doi.org/10.1109/IAS.2003.1257533
  5. 김장목, '매입형 영구자석 동기전동기의 제어특성 개선,' 서울대학교 대학원 전기공학부 공학 박사학위 논문, 1996
  6. 武田洋次, 平沙多賀男, 'PM モータのdq 등가회로 等價回路定數の測定法,' 電氣學會論文誌D, Vol. 113, No.11, pp.1330-1331, 1993