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    Maximizing wind power efficiency with hybrid excitation synchronous generators and energy storage systems through advanced control strategies
    (Elsevier ltd, 2025) Kacemi, Walid Mohammed; Bounadja, Elhadj; Djilali, Abdelkadir Belhadj; Saidi, Fayssal; Belmadani, Bachir; Çolak, İlhami
    This work aims to fill a notable research gap in the field of wind power by investigating the untapped potential of Hybrid Excitation Synchronous Generator (HESG) in wind power conversion systems (WPCS) that incorporate an Energy Storage System (ESS). Although there have been significant improvements in WPCS controls, the potential of HESG inside WPCS has yet to be thoroughly investigated. Consequently, we provide an enhanced thirdorder super twisting (ETOSTC) tailored explicitly for WPCS equipped with HESG. This control aims to enhance system performance and improve the quality of power delivery to the grid. ETOSTC tackles settling time, overshoot, and steady-state error of the HESG speed and DC bus voltage by utilizing a high-order sliding surface with a continuous switching control term. The performance of ETOSTC is demonstrated through comparative tests with a Proportional-Integral (PI) and a Second Order Super Twisting Controller (SOSTC). ETOSTC improves the system efficiency of power to 99.1 %, beating the SOSTC's 92.9 % and the PI's 89.5 %. In addition, ETOSTC decreases grid current Total Harmonic Distortion (THD) by around 78.39 % compared to SOSTC. An ESS connection test shows the system's ability to provide users with smooth power and current. The effectiveness of the suggested system is assessed by simulation using MATLAB software under different wind speed conditions.