A Disturbance Observer Based Sliding Mode Control for Variable Speed Wind Turbine

Rehman, Ateeq ur; Ali, Nihad; Khan, Owais; Pervaiz, Mahmood

doi:10.1080/03772063.2019.1676661

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…Gearbox having a coefficient of stiffness d G and a coefficient of damping f G . However, the stiffness coefficients d G , d t and d m are generally low, so they can be neglected [12]. Hence, torque equations are:…”

Section: Description Of the Wind Turbine Modelmentioning

confidence: 99%

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Improved Super Twisting Based High Order Direct Power Sliding Mode Control of a Connected DFIG Variable Speed Wind Turbine

Zouheyr¹,

Baghli

Boumédiène³

2021

Period. Polytech. Elec. Eng. Comp. Sci.

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This work presents the theoretical and practical comparison of linear and nonlinear control laws for the direct power control of a grid-connected double fed induction generator (DFIG), based wind energy conversion system (WECS) under different operating modes. We will show the improvement brought by the super twisting based high order sliding mode control to mitigate the chattering phenomenon, due to the high switching frequency. It will also avoid the hyperlink of the controller settings to the system’s mathematical model and will reduce the sensibility to external disturbances. The overall structure of the proposed control requires the use of the DFIG simplified model with field-oriented control (FOC). This last allows an instantaneous decoupled control of the DFIG stator active and reactive power by acting on dq rotor currents (Iqr , Idr ) respectively. In the preliminary tests, a comparative study is conducted to verify the superior performance of the proposed WECS control scheme during various operating modes including the maximum power point tracking MPPT mode. The study reveals the effectiveness of each implemented control law with its advantages and drawbacks.

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Section: Description Of the Wind Turbine Modelmentioning

confidence: 99%

“…Since the 1990s, sliding mode control became popular as a good choice instead of PI controllers. It is easy to implement and provides robustness against the internal parametric variations [12]. On the other hand, the chattering phenomenon caused by the high commutation frequency is the major drawback of this technique.…”

Section: Introductionmentioning

confidence: 99%

Improved Super Twisting Based High Order Direct Power Sliding Mode Control of a Connected DFIG Variable Speed Wind Turbine

Zouheyr¹,

Baghli

Boumédiène³

2021

Period. Polytech. Elec. Eng. Comp. Sci.

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Finite‐Time Disturbance Observer‐Based Adaptive Continuous Robust Control for Buck Converter

Aghdam,

Mazare,

Torkaman

2024

Circuit Theory & Apps

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This paper proposes a novel finite‐time adaptive continuous robust control method for buck converters, combining dynamic sliding mode theory with a mismatched disturbance observer. While traditional sliding mode control can effectively manage matched disturbances, it often falls short when faced with mismatched disturbances, potentially compromising system performance. Our developed control strategy introduces a nonlinear sliding mode‐based disturbance observer and an adaptive continuous robust sliding mode control to guide state variables towards desired values. To mitigate the chattering phenomenon, the proposed controller incorporates a super‐twisting algorithm, ensuring continuous control command behavior. We conducted a rigorous finite‐time stability analysis of the control procedure using Lyapunov theory. Furthermore, comprehensive experimental results demonstrate that our proposed control method significantly reduces disturbance effects and enhances the buck converter's performance in terms of robustness and accuracy.

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Fractional-order proportional-integral super twisting sliding mode controller for wind energy conversion system equipped with doubly fed induction generator

et al. 2022

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A Disturbance Observer Based Sliding Mode Control for Variable Speed Wind Turbine

Cited by 7 publications

References 13 publications

Improved Super Twisting Based High Order Direct Power Sliding Mode Control of a Connected DFIG Variable Speed Wind Turbine

Improved Super Twisting Based High Order Direct Power Sliding Mode Control of a Connected DFIG Variable Speed Wind Turbine

Finite‐Time Disturbance Observer‐Based Adaptive Continuous Robust Control for Buck Converter

Fractional-order proportional-integral super twisting sliding mode controller for wind energy conversion system equipped with doubly fed induction generator

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