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Sliding Mode Control of Active Trailing-Edge Flap Based on Adaptive Reaching Law and Minimum Parameter Learning of Neural Networks

Author

Listed:
  • Tingrui Liu

    (College of Mechanical & Electronic Engineering, Shandong University of Science & Technology, Qingdao 266590, China)

  • Ailing Gong

    (Business School, Qingdao University of Technology, Qingdao 266520, China)

  • Changle Song

    (College of Mechanical & Electronic Engineering, Shandong University of Science & Technology, Qingdao 266590, China)

  • Yuehua Wang

    (School of Mechanical and Vehicle Engineering, Linyi University, Linyi 276000, China)

Abstract

Theoretical modeling and the sliding mode control (SMC) of an active trailing-edge flap of a wind turbine blade based on the adaptive reaching law are investigated. The blade is a single-celled thin-walled composite structure using circumferentially asymmetric stiffness (CAS) design, exhibiting displacements of flap-wise/twist coupling. A reduced structural model originated from the variation method is used to model the structure of the blade, the structural damping of which is computed. The trailing-edge flap is a rigid structure that is embedded in and hinged to the blade host structure, and it is driven by two pairs of pneumatic cylinders moving in reverse. Flutter suppression for the large-amplitude vibration of the blade tip is investigated based on an active trailing-edge flap structure and SMC algorithm using the adaptive reaching law. The controlled responses of flap-wise/twist displacements and control inputs (the angles of the trailing-edge flap) are illustrated, with obvious simulation effects demonstrated. An experimental platform for driving the pneumatic cylinders verifies the effectiveness of the control algorithm using the adaptive reaching law and the effectiveness of the selected pneumatic transmission scheme controlled by another adaptive SMC based on the minimum parameter learning of neural networks.

Suggested Citation

  • Tingrui Liu & Ailing Gong & Changle Song & Yuehua Wang, 2020. "Sliding Mode Control of Active Trailing-Edge Flap Based on Adaptive Reaching Law and Minimum Parameter Learning of Neural Networks," Energies, MDPI, vol. 13(5), pages 1-21, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:5:p:1029-:d:325039
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    References listed on IDEAS

    as
    1. Llorente, Elena & Ragni, Daniele, 2020. "Trailing-edge serrations effect on the performance of a wind turbine," Renewable Energy, Elsevier, vol. 147(P1), pages 437-446.
    2. Zhang, Ye & Ramdoss, Varun & Saleem, Zohaib & Wang, Xiaofang & Schepers, Gerard & Ferreira, Carlos, 2019. "Effects of root Gurney flaps on the aerodynamic performance of a horizontal axis wind turbine," Energy, Elsevier, vol. 187(C).
    3. Zhuang, Chen & Yang, Gang & Zhu, Yawei & Hu, Dean, 2020. "Effect of morphed trailing-edge flap on aerodynamic load control for a wind turbine blade section," Renewable Energy, Elsevier, vol. 148(C), pages 964-974.
    4. Chen, Hao & Qin, Ning, 2017. "Trailing-edge flow control for wind turbine performance and load control," Renewable Energy, Elsevier, vol. 105(C), pages 419-435.
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