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Slip Estimated Sensorless Vector Controller

슬립추정 센서리스 벡터 제어기

  • 한상수 (경원대학교 정보통신공학과)
  • Received : 2010.05.27
  • Accepted : 2010.07.10
  • Published : 2010.10.30

Abstract

A sensorless vector control of an induction motor provides a good performance in the middle and high speed region. However, in the low speed region, it is very difficult to implement the sensorless vector controller because the feeding voltage measured by the motor is very low. In this paper, we designed the sensorless vector controller of an induction motor using the estimate of the slip frequency. To verify the performance of the proposed controller, an experiment has been performed.

유도 모터의 센서리스벡터 제어시스템은 모터의 시정수를 이용하여 자극의 위치를 추정하는 제어 시스템으로서 중 고속영역의 경우 벡터 제어가 잘 구현된다. 그러나 저속의 경우 모터로부터 얻는 전압정보가 너무 작아서 벡터 제어기의 구현이 어렵다. 본 논문에서는 슬립 주파수 추정을 이용하여 저속에서의 센서리스벡터제어 문제점을 개선시켜 광범위한 속도 영역에서 벡터제어가 가능한 센서리스 벡터제어기를 설계하였다. 제어기의 성능은 실험을 통하여 확인하였다.

Keywords

References

  1. Elloumi M, Ben-Brahim L, Al-Hamadi MA "Survey of speed sensorless controls for IM drives". IEEE Industrial Electronics Society . IECON 98. Proceedings of the 24th annual conference of the IEEE, pp 1018-1023, 1998.
  2. Inanc N "Implementation of a closed loop sliding mode observer for speed sensorless control of an indirect field oriented induction motor drives". Electrical Engineering (Archiv fur Elektrotechnik), vol 90, Nor 2 December, 2007.
  3. Arab Markadeh GR, Soltani J, "Robust direct torque and flux control of adjustable speed sensorless induction machine drive based on space vector modulation using a PI predictive controller". Electrical Engineering (Archiv fur Elektrotechnik), vol 88, Nor 6 August, 2007.
  4. Rashed M, Stronach F, Vas P "A stable MRAS-based sensorless vector control induction motor drive at low speeds", Industry Application Conference, 38th IAS annual meeting conference record 12-16 Oct, vol 2, pp 1181-1188, 2003.
  5. Tamai S, Sugimoto H, Yano M, "Speed sensorless vector control of induction motor with model reference adaptive system". Proceedings of IEEE Industry Application Society (IAS) annual meeting, Atlanta, GA, pp 189-195, 1987.
  6. Jansen PL, Lorenz RD, "Accuracy limitations of velocity and flux estimation in direct field oriented induction machines" Conference On power electronics and applications, fifth European conference on 13-16 September, vol 4, pp 312-318, 1993.
  7. Schauder C "Adaptive speed identification for vector control of induction motors without rotational transducers". IEEE Transactions on Industrial Applications, vol 28, no 5, October/November, pp 1054-1061, 1992. https://doi.org/10.1109/28.158829
  8. Carmeli MS, Castelli Dezza F, Iacchetti M, Perini R, "Effect of the inverter non-linearities compensation on a MRAS speed estimator in a double fed induction motor drive". Electr Eng (Archiv fur Elektrotechnik) 90(4):283-291, 2008. https://doi.org/10.1007/s00202-007-0080-4