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Sensorless Speed Control Based on the Improved Q-MRAS Method for Induction Motor Drives

Author

Listed:
  • Danyang Bao

    (Power Electronics and Electrical Drives Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China)

  • Hong Wang

    (Power Electronics and Electrical Drives Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China)

  • Xiaojie Wang

    (Power Electronics and Electrical Drives Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China)

  • Chaoruo Zhang

    (Power Electronics and Electrical Drives Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China)

Abstract

For high-power and high-performance speed control system, speed feedback signals are generally required. The employment of sensorless control technology makes the installation of the system easier and lower-cost, while its reliability needs to be improved. The robustness of the improved instantaneous reactive power based on the quadrature model reference adaptive system (MRAS) with respect to the variation of the motor inductance parameter is improved by selecting the appropriate reference model and adjustable model. The improved instantaneous reactive power (Q) based on model reference adaptive system (Q-MRAS) algorithm is studied by small signal analysis, and the stability of the control system is verified by the Routh Stability Criterion. The simulation models and experimental platform for the proposed control are built in the laboratory. The feasibility and superiority are verified by the corresponding simulation and experimental results.

Suggested Citation

  • Danyang Bao & Hong Wang & Xiaojie Wang & Chaoruo Zhang, 2018. "Sensorless Speed Control Based on the Improved Q-MRAS Method for Induction Motor Drives," Energies, MDPI, vol. 11(1), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:1:p:235-:d:127708
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