The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

Sensorless Transition Algorithm of PM Synchronous Motor by Load Torque Estimation

영구자석동기전동기의 부하추정을 통한 센서리스 전환 알고리즘

  • Kim, Dong-Hyun (Dept. of Electronic Engineering, Korea Nat'l University of Transportation) ;
  • Cho, Kwan-Yuhl (Dept. of Electronic Engineering, Korea Nat'l University of Transportation) ;
  • Kim, Hag-Wone (Dept. of Electronic Engineering, Korea Nat'l University of Transportation)
  • Received : 2021.01.31
  • Accepted : 2021.04.20
  • Published : 2021.10.20
Download PDF
⟨ Previous Next ⟩

Abstract

Permanent magnet synchronous motors are mainly used in the traction of electric vehicle and home application products including air-conditioners and refrigerators. For sensorless control without rotor position sensors, I-F control is applied for initial starting at low speeds, and mode is changed to sensorless control when the rotor speed is sufficiently accelerated for estimating rotor position. When the mode is changed to the sensorless control from the open-loop starting, the initial integral value of the speed controller should be considered by load condition; otherwise, the transition to sensorless control may fail. The sensorless transfer algorithm of PM synchronous motor based on load condition for smooth transition is proposed. The performance of the proposed sensorless transfer algorithm was verified by experiments.

Keywords

Acknowledgement

본 연구는 2021년도 산업통상자원부의 재원으로 한국에너지기술평가원(KETEP)의 에너지인력양성사업으로 지원받아 수행한 인력양성 성과입니다. (No. 20184030202270)

References

  1. H. Kim, M. C. Harke, and R. D. Lorenz, "Sensorless control of interior permanent magnet machine drives with zero-phase-lag position estimation," IEEE Trans. on Industry Applications, Vol. 3, pp. 1661-1667, Oct. 2002.
  2. J. Ha, K. Ide, T. Sawa, and S. Sul, "Sensorless rotor position estimation of an interior permanent-magnet motor from initial states," IEEE Trans. on Industry Applications, Vol. 39, No. 3, pp. 761-767, May 2003. https://doi.org/10.1109/TIA.2003.811781
  3. K. W. Lee and J. Ha, "Evaluation of back-EMF estimators for sensorless control of permanent magnet synchronous motors," Journal of Power Electronics, Vol. 12, No. 4, pp. 604-614, Jul. 2012. https://doi.org/10.6113/JPE.2012.12.4.604
  4. P. D. C. Perera, F. Blaabjerg, J. K. Pedersen, and P. Thogersen, "A sensorless, stable V/f control method for permanent-magnet synchronous motor drives," IEEE Trans. on Industry Applications, Vol. 39, No. 3, pp. 783-791, May 2003. https://doi.org/10.1109/TIA.2003.810624
  5. J. Itoh, N. Nomura, and H. Ohsawa, "A comparison between V/f control and position-sensorless vector control for the permanent magnet synchronous motor," in Power Conversion Conference (PCC), Vol. 3, pp. 1310-1315, Apr. 2002.
  6. J. H. Jang, J. I. Ha, M. Ohto, K. Ide, and S. K. Sul, "Analysis of permanent-magnet machine for sensorless control based on high-frequency signal injection," IEEE Trans. on Industry Applications, Vol. 40, No. 6, pp. 1595-1604, Nov. 2004. https://doi.org/10.1109/TIA.2004.836222
  7. J. I. Ha and S. K. Sul, "Sensorless field orientation control of an induction machine by high frequency signal injection," IEEE Trans. on Industry Applications, Vol. 35, No. 1, pp. 45-51, Oct. 1997.
  8. Z. Chen, M. Tomita, S. Ichikawa, S. Doki, and S. Okuma, "Sensorless control of interior permanent magnet synchronous motor by estimation of an extended electromotive force," in IEEE-IAS Annu. Meeting, Rome, Italy, Vol. 3, pp. 1814-1819, Oct. 2000.
  9. S. Morimoto, K. Kawamoto, M. Sanada, and Y. Takeda, "Sensorless control strategy for salient-pole PMSM based on extended EMF in rotating reference frame," IEEE Trans. on Industry Applications, Vol. 38, pp. 1054-1061, Aug. 2002. https://doi.org/10.1109/TIA.2002.800777
  10. I. Boldea, A. Moldovan, and L. Tutelea, "Scalar V/f and I-f control of AC motor drives: An overview," in 2015 Int'l Aegean Conference on Electrical Machines & Power Electronics (ACEMP), pp. 8-17, 2015.
  11. M. Fatu, R. Teodorescu, I. Boldea, G. Andreescu, and F. Blaabjerg, "I-F starting method with smooth transition to EMF based motion-sensorless vector control of PM synchronous motor/generator," in IEEE Power Electronics Spectioalists Conference (PESC), Rhodes, pp. 1481-1487, 2008.
  12. A. Stirban, I. Boldea, G. Andreescu, D. Iles, and F. Blaabjerg, "Motion sensorless control of BLDC PM motor with offline FEM info assisted state observer," in 12th International Conference on Optimization of Electrical and Electronic Equipment, Basov, pp. 321-328, 2010.