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A sensorless PMSM drive using modified high-frequency test pulse sequences for the purpose of a discrete-time current controller with fixed sampling frequency

Author

Listed:
  • De Belie, Frederik M.
  • Sergeant, Peter
  • Melkebeek, Jan A.

Abstract

For electrical machines, accurate position estimations at low speed can be obtained from current responses on high-frequency voltage test pulses. Nevertheless, to apply these voltage test pulses the current controller is often interrupted. In this paper, a modified test pulse sequence is discussed for which the current can be controlled without interruption. To generate the modified test pulse sequence, an asymmetric pulse-width modulator is required. The improvement in the dynamic behaviour of the sensorless drive is discussed by simulations including a salient-pole permanent-magnet synchronous machine, the current control loop, the pulse-width modulator and the position estimator.

Suggested Citation

  • De Belie, Frederik M. & Sergeant, Peter & Melkebeek, Jan A., 2010. "A sensorless PMSM drive using modified high-frequency test pulse sequences for the purpose of a discrete-time current controller with fixed sampling frequency," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 81(2), pages 367-381.
    • Handle: RePEc:eee:matcom:v:81:y:2010:i:2:p:367-381
    DOI: 10.1016/j.matcom.2010.07.023
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    Cited by:

    1. Hamida, Mohamed Assaad & Glumineau, Alain & de Leon, Jesus & Loron, Luc, 2014. "Robust adaptive high order sliding-mode optimum controller for sensorless interior permanent magnet synchronous motors," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 105(C), pages 79-104.
    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.

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