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Stability Analysis of Open-Loop V/Hz Controlled Asynchronous Machines and Two Novel Mitigation Strategies for Oscillations Suppression

Author

Listed:
  • Lorenzo Carbone

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, via all’Opera Pia 11a, 16145 Genova, Italy)

  • Simone Cosso

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, via all’Opera Pia 11a, 16145 Genova, Italy)

  • Krishneel Kumar

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, via all’Opera Pia 11a, 16145 Genova, Italy)

  • Mario Marchesoni

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, via all’Opera Pia 11a, 16145 Genova, Italy)

  • Massimiliano Passalacqua

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, via all’Opera Pia 11a, 16145 Genova, Italy)

  • Luis Vaccaro

    (Department of Electrical, Electronic, Tlc Engineering and Naval Architecture (DITEN), University of Genova, via all’Opera Pia 11a, 16145 Genova, Italy)

Abstract

Asynchronous machines are always widely used in most industrial applications due to their reliability, flexibility, and manoeuvrability. To achieve variable speed operations, the quite simple open-loop V/Hz control is largely utilized. Under open-loop V/Hz control, the nonlinear interaction is well known to cause current and torque oscillations while operating at low to medium speeds under light loads. This article presents the stability analysis of induction motors at low–medium frequencies under no-load conditions with the V/Hz control. A system representation in the form of state space is discussed, and the region of instability is plotted against the V/f plane. Two novel and refined methods for the mitigation of oscillations in the region of instability are presented. The two proposed algorithms are finally tested and validated through simulation on an inverter-fed induction motor drive system.

Suggested Citation

  • Lorenzo Carbone & Simone Cosso & Krishneel Kumar & Mario Marchesoni & Massimiliano Passalacqua & Luis Vaccaro, 2022. "Stability Analysis of Open-Loop V/Hz Controlled Asynchronous Machines and Two Novel Mitigation Strategies for Oscillations Suppression," Energies, MDPI, vol. 15(4), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:4:p:1404-:d:749718
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    References listed on IDEAS

    as
    1. Kodkin Vladimir & Anikin Alexander, 2021. "On the Physical Nature of Frequency Control Problems of Induction Motor Drives," Energies, MDPI, vol. 14(14), pages 1-15, July.
    2. Maria Dems & Krzysztof Komeza & Jacek Szulakowski & Witold Kubiak, 2021. "Dynamic Simulation of High-Speed Induction Motor," Energies, MDPI, vol. 14(9), pages 1-14, May.
    3. Roberto Faranda & Hossein Hafezi & Kishore Akkala & Massimo Lazzaroni, 2020. "AC “Back to Back” Switching Device in Industrial Application," Energies, MDPI, vol. 13(14), pages 1-20, July.
    4. Jingling Cheng & Dongdong Chen & Guozhu Chen, 2020. "Modeling and Compensation for Dead-Time Effect in High Power IGBT/IGCT Converters with SHE-PWM Modulation," Energies, MDPI, vol. 13(17), pages 1-20, August.
    5. Ahmed Fathy Abouzeid & Juan Manuel Guerrero & Aitor Endemaño & Iker Muniategui & David Ortega & Igor Larrazabal & Fernando Briz, 2020. "Control Strategies for Induction Motors in Railway Traction Applications," Energies, MDPI, vol. 13(3), pages 1-22, February.
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    Cited by:

    1. Juan Carlos Travieso-Torres & Manuel A. Duarte-Mermoud, 2022. "Normalized Model Reference Adaptive Control Applied to High Starting Torque Scalar Control Scheme for Induction Motors," Energies, MDPI, vol. 15(10), pages 1-16, May.

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