Abstract
This paper proposes a fractional-order adaptive backstepping control (FOABC) with disturbance and uncertainty terms compensation for improving the MPPT (maximum power point tracking) performance and output power quality of a doubly fed induction generator (DFIG)-based wind turbine. In the proposed high-efficacy controller, disturbance and uncertainty terms are estimated in real time using an adaptive estimator designed using a recursion design process based on the nonlinear backstepping control. Meanwhile, a robust compensator is schemed and incorporated into the backstepping control algorithm so that it suppresses the effects of external disturbances and system uncertainties and, as a result, ensures the maximum wind energy extraction as much as possible, which is usually well known as MPPT. Furthermore, the fractional-order control approach was deployed in the proposed adaptive backstepping controller to provide a smooth control signal for enhancing the quality of the power injected into the grid. The stability analysis of the overall closed-loop system was performed using Lyapunov's stability theory. The high effectiveness of the proposed control method was assessed through simulation studies carried out in MATLAB/Simulink of a DFIG-wind turbine operating in various conditions.
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Abbreviations
- FOABC:
-
Fractional-order adaptive backstepping control
- DFIG:
-
Doubly fed induction generator
- MPPT:
-
Maximum power point tracking
- PI:
-
Proportional-integral
- LCF:
-
Lyapunov candidate functions
- RSC:
-
Rotor side converter
- PWM:
-
Pulse width modulation
- TSR:
-
Tip speed ratio
- SFOC:
-
Stator flux orientation control
- FO:
-
Fractional-order
- CBC:
-
Classical backstepping controller
- FFT:
-
Fast Fourier transform
- THD:
-
Total harmonic distortion
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Kasbi, A., Rahali, A. MPPT Performance and Power Quality Improvement by Using Fractional-Order Adaptive Backstepping Control of a DFIG-Based Wind Turbine with Disturbance and Uncertain Parameters. Arab J Sci Eng 48, 6595–6614 (2023). https://doi.org/10.1007/s13369-022-07474-1
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DOI: https://doi.org/10.1007/s13369-022-07474-1