The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

The P/PI Mode Switching Method of Gopinath Flux Observer for Sensorless Vector Control of Induction Motors

유도전동기 센서리스 벡터제어를 위한 고피나스 자속관측기의 P/PI 모드 전환

  • Received : 2017.07.18
  • Accepted : 2017.11.21
  • Published : 2017.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents a sensorless vector control algorithm of closed loop Gopinath flux observer to enhance the robustness at low speed by switching P/PI mode. Closed loop Gopinath flux observer has the problem in sensorless vector control of induction motor at low speed. This paper solves the problem using the characteristic function of closed loop Gopinath flux observer. P mode shows better performance than PI mode under the cut-off frequency of observer. But P mode always has a flux error due to DC offset, so this paper combines P mode and PI mode. This algorithm shows good performance over wide speed range. The performance has been confirmed through computer simulations using MATLAB SIMULINK and experiments.

Keywords

References

  1. K. Kenzo, O. Tsutomu and S. Takashi, "Application trends in AC motor drives", IEEE IECON Conf. Rec., pp. 31-36, 1992.
  2. D. W. Novotny and T.A. Lipo, "Vector control and dynamics of AC drives", Oxford, Clarendon Press, 1988.
  3. R. Krishnan, "Selection criteria for servo motor drive", IEEE IAS Conf. Rec., pp. 301-308, 1986.
  4. T. Ohtani and N. Takada, "Vectorcontrol of an induction motor without shaft encoder", IEEE Trans. Ind. Applicat., vol. 28, pp. 157-164, 1992 https://doi.org/10.1109/28.120225
  5. H. Kubota, K. Matsuse and T. Nakano, "DSP-based speed adaptive flux observer of induction motor", IEEE Trans. Ind. Applicat., vol. 29, pp. 344-348, 1993 https://doi.org/10.1109/28.216542
  6. H. Kubota and K. Matsuse, "Speed sensorless fieldoriented control of induction motor with rotor resistance adaptation", IEEE Trans. Ind. Applicat., vol. 30, pp. 1219-1224, 1994 https://doi.org/10.1109/28.315232
  7. Y. L. Kim, S. K. Sul and M. H. Park, "Speed sensorless vector control of induction motor using extended Kalman filter", IEEE Trans. Ind. Applicat., vol. 30, pp. 1225-1233, 1994. https://doi.org/10.1109/28.315233
  8. L. Zhen and L. Xu, "Sensorless field orientation control of induction machines based on a mutual MRAS scheme", IEEE Trans. Ind. Electron., vol. 45, pp. 824- 831, 1998 https://doi.org/10.1109/41.720340
  9. J. K. Ha and S. K. Sul, "Sensorless field-orientation control of an induction machine by high-frequency signal injection", IEEE Trans. Ind. Applicat., vol. 35, pp. 45-51, 1999 https://doi.org/10.1109/28.740844
  10. Y. H. Park, J. W. Choi, H. G. Kim, J. K. Kim, Y. T. Choi, E. C. Nho, and T. W. Chun, "A Study on the Characteristics of Thyristor Controlled Shunt Compensator", The Trans. of Korean Institute of Power Electronics, pp. 299-306, 2003
  11. P. L. Jansen, and R. D. Lorenz; "A physically insightful approach to the design and accuracy assessment of flux observers for field oriented induction machine drives ", IEEE Trans. Ind. Applicat., vol. 30, NO I, Jan./Feb. 1994
  12. J. S. Yu, B. H. Yoo, B. K. Lee, C. Y.Won, "Sensorless Vector Control of Spindle Induction Motors Using Rotor Flux Observer with a Variable Bandwidth", IECON 2006-32nd Annual Conference on IEEE Industrial Electronics, pp. 1065-1070, Nov. 2006
  13. J. H. Kim, J. W. Choi, S. K. Sul; "Novel rotor-flux observer using observer characteristic function in complex vector space for field-oriented induction motor drives", IEEE Trans. Indus. Appli., vol. 38, no. 5, 2002,