Abstract
This study applies the sliding mode control technique to control the three-phase induction motor under magnetic saturation. Based on the field-oriented control technique, the proposed sliding mode controller is decoupled into two independent controllers for the stator flux and rotor speed. In addition, the sliding surface and reaching laws are improved to be able to increase the convergence rate and reduce discontinuity phenomena. The simulation and experimental results of the three-phase 1-hp induction motor in magnetic saturation mode will be addressed clearly to show the effectiveness and stability of the proposed control method in ensuring that the motor torque exceeds 5× the rated value.
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Abbreviations
- \(u_{sq} ,u_{sd}\) :
-
Stator voltages (d–q axis)
- \(u_{rq} ,u_{rd}\) :
-
Rotor voltages (d–q axis)
- \(i_{sq} ,i_{sd}\) :
-
Stator currents (d–q axis)
- \(i_{rq} ,i_{rd}\) :
-
Rotor currents (d–q axis)
- \(\varphi_{sq} ,\varphi_{sd}\) :
-
Stator fluxes (d–q axis)
- \(\varphi_{rq} ,\varphi_{rd}\) :
-
Rotor fluxes (d–q axis)
- \(\omega_{r}\) :
-
Angular velocity
- \(R_{{\text{s}}} ,R_{{\text{r}}}\) :
-
Stator, rotor resistances
- \(L_{{\text{s}}} ,L_{{\text{r}}} ,L_{{\text{l}}}\) :
-
Stator, rotor, mutual inductances
- \(T_{{\text{e}}} ,T_{{\text{m}}}\) :
-
Electromagnetic, load torques
- \(p\) :
-
Pole-pairs
- \(B\) :
-
Friction coefficient
- \(J\) :
-
Inertia constant
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Acknowledgements
The authors would like to thank the associate editor and the reviewers for their valuable comments.
Funding
This work was supported by the Ho Chi Minh City University of Technology and Education and the Industrial University of Ho Chi Minh City, Vietnam, under Grant Number 222/QĐ-ĐHCN, 22/02/2023.
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Dr. Nguyen Vinh Quan and Dr. Mai Thang Long. The first draft of the manuscript was written by Dr. Mai Thang Long and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Approval was granted by the Ho Chi Minh City University of Technology and Education and the Industrial University of Ho Chi Minh City, Vietnam.
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Quan, N.V., Long, M.T. Sliding mode control method for three-phase induction motor with magnetic saturation. Int. J. Dynam. Control 12, 1522–1532 (2024). https://doi.org/10.1007/s40435-023-01269-4
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DOI: https://doi.org/10.1007/s40435-023-01269-4