Application of Higher Order Sliding Mode Control for Doubly Fed Induction Generator for Chattering Reduction in Wind Turbine System

Sani Ahmed Kanada, Adamu Abubakar Saidu, Sani Salisu

Abstract


Chattering mitigation in wind turbine-based Doubly Fed Induction Generators (DFIGs) is a critical issue to ensure stable and efficient operation. This paper presents the design of a higher-order sliding mode control (HOSMC) technique for mitigating chattering and improving the performance of DFIGs in wind turbine applications. The proposed control strategy leverages the benefits of sliding mode control, known for its robustness against uncertainties and disturbances, while addressing the chattering phenomenon that can cause high-frequency oscillations and undesirable effects on the system. The HOSMC design involves the use of higher-order sliding surfaces to achieve smooth and precise control. A mathematical model of the DFIG system is developed, and the control scheme is designed to regulate both the rotor-side and grid-side converters, enabling optimal power extraction and grid synchronization. Simulation studies are conducted to evaluate the performance of the proposed control technique under different operating conditions and in the presence of disturbances. The results demonstrate the effectiveness of the higher-order sliding mode control in mitigating chattering, reducing system oscillations, and improving the dynamic response of the DFIG system. The proposed control strategy shows great potential for enhancing the overall performance and stability of wind turbine-based DFIGs, contributing to the advancement of renewable energy generation systems.


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References


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