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Robust Adaptive Fractional Fast Terminal Sliding Mode Controller for Microgyroscope

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  • Juntao Fei
  • Zhe Wang
  • Xiao Liang

Abstract

In this paper, a robust adaptive fractional fast terminal sliding mode controller is introduced into the microgyroscope for accurate trajectory tracking control. A new fast terminal switching manifold is defined to ensure fast finite convergence of the system states, where a fractional-order differentiation term emerges into terminal sliding surface, which additionally generates an extra degree of freedom and leads to better performance. Adaptive algorithm is applied to estimate the damping and stiffness coefficients, angular velocity, and the upper bound of the lumped nonlinearities. Numerical simulations are presented to exhibit the validity of the proposed method, and the comparison with the other two methods illustrates its superiority.

Suggested Citation

  • Juntao Fei & Zhe Wang & Xiao Liang, 2020. "Robust Adaptive Fractional Fast Terminal Sliding Mode Controller for Microgyroscope," Complexity, Hindawi, vol. 2020, pages 1-18, July.
    • Handle: RePEc:hin:complx:8542961
    DOI: 10.1155/2020/8542961
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