Direct Torque Control of an Induction Motor Using Fractional-Order Sliding Mode Control Technique for Quick Response and Reduced Torque Ripple
Abstract
:1. Introduction
- Control algorithm of an FOSMC for SVM-based DTC for induction motor drives (IMDs);
- Derivation of the electromagnetic torque of an IMD using an FOSMC-DTC scheme;
- Minimization of torque ripples during steady state;
- Improved system response times during load-changing conditions;
- Reduction of high-frequency chattering phenomenon;
- Pure sinusoidal stator current waveform with fewer distortions in a 3-Φ IMD;
- Comparative analysis of the FOSMC-DTC, classical SMC, and PI controller methods.
2. Fractional-Order Sliding Mode Controller for Induction Motors
2.1. SVM-Based DTC Using Single PI Controller
2.2. SVM-Based DTC with Conventional Sliding Mode Controller
2.3. SVM-Based FOSMC-DTC of Induction Motors
3. Mathematical Model of FOSMC-DTC Scheme of IMD
4. Simulation Results and Discussions
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
Abbreviations
BLDC | Brushless DC motor |
DTC | Direct torque control |
EV | Electric vehicle |
SPWM | Space vector pulse width modulation |
SVM | Space vector modulation |
PI | Proportional and integral |
SMC | Sliding mode controller |
HOSMC | Higher-order sliding mode controller |
FOSMC | Fractional-order sliding mode controller |
IMD | Induction motor drive |
PMSM | permanent magnet synchronous motor drive |
SRM | Switched reluctance motor |
PID | Proportional-integral controller |
S | Sliding surface |
Surface gradient | |
u | Fractional-order derivative gain |
λ | Fractional-order integral gain. |
Desired speed | |
Actual speed | |
Surface gradient of torque control | |
Surface gradient of flux control | |
Electromechanical torque | |
Load torque |
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Rating of the Induction Motor, P | 5.4 HP |
---|---|
Voltage (L-L), Vrms | 440 V |
Power frequency, fs | 50 Hz |
Rated torque, T | 30 N-m |
Rated current (Peak) | 16 A |
Nominal speed, Nnom | 1430 rpm |
Controller Parameters | Flux Sliding Surface | Torque Sliding Surface |
---|---|---|
λ | 0.5 | 0.56 |
u | 0.45 | 0.5 |
kP | 1.5 | 5.0 |
kI | 0.1 | 0.1 |
kD | 1.0 | 1.0 |
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Gudey, S.K.; Malla, M.; Jasthi, K.; Gampa, S.R. Direct Torque Control of an Induction Motor Using Fractional-Order Sliding Mode Control Technique for Quick Response and Reduced Torque Ripple. World Electr. Veh. J. 2023, 14, 137. https://doi.org/10.3390/wevj14060137
Gudey SK, Malla M, Jasthi K, Gampa SR. Direct Torque Control of an Induction Motor Using Fractional-Order Sliding Mode Control Technique for Quick Response and Reduced Torque Ripple. World Electric Vehicle Journal. 2023; 14(6):137. https://doi.org/10.3390/wevj14060137
Chicago/Turabian StyleGudey, Satish Kumar, Mohan Malla, Kiran Jasthi, and Srinivasa Rao Gampa. 2023. "Direct Torque Control of an Induction Motor Using Fractional-Order Sliding Mode Control Technique for Quick Response and Reduced Torque Ripple" World Electric Vehicle Journal 14, no. 6: 137. https://doi.org/10.3390/wevj14060137