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A new scheme for sensorless induction motor control drives operating in low speed region

Author

Listed:
  • Beguenane, Rachid
  • Ouhrouche, Mohand A.
  • Trzynadlowski, Andrzej M.

Abstract

A novel simple stator resistance estimation technique for high-performance induction motor drives is proposed. It makes use of a synchronously revolving reference frame aligned with the stator current vector, so that the resistance can be straightforwardly derived from the mathematical model of the induction motor. A sensorless direct field orientation scheme is employed to validate the proposed solution, with the drive operating in the critical area of low speeds. A combination of two observers is used: a Kalman filter observer to estimate the rotor flux, and a MRAS observer for speed estimation. The stator resistance estimator alleviates the usual performance degradation of MRAS-based drives at low speeds, caused by the thermal drift of stator resistance. Computer simulations, including realistic disturbances, show high effectiveness of the described approach.

Suggested Citation

  • Beguenane, Rachid & Ouhrouche, Mohand A. & Trzynadlowski, Andrzej M., 2006. "A new scheme for sensorless induction motor control drives operating in low speed region," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 71(2), pages 109-120.
    • Handle: RePEc:eee:matcom:v:71:y:2006:i:2:p:109-120
    DOI: 10.1016/j.matcom.2006.01.001
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    Cited by:

    1. Brahmi, Jemaa & Krichen, Lotfi & Ouali, Abderrazak, 2009. "A comparative study between three sensorless control strategies for PMSG in wind energy conversion system," Applied Energy, Elsevier, vol. 86(9), pages 1565-1573, September.
    2. Bensiali, N. & Etien, E. & Benalia, N., 2015. "Convergence analysis of back-EMF MRAS observers used in sensorless control of induction motor drives," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 115(C), pages 12-23.
    3. Mohan Krishna S. & Febin Daya J.L. & Sanjeevikumar Padmanaban & Lucian Mihet-Popa, 2017. "Real-Time Analysis of a Modified State Observer for Sensorless Induction Motor Drive Used in Electric Vehicle Applications," Energies, MDPI, vol. 10(8), pages 1-23, July.

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