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Bumpless Transfer of Uncertain Switched System and Its Application to Turbofan Engines

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Listed:
  • Penghui Sun

    (School of Energy and Power Engineering, Beihang University, Beijing 100083, China)

  • Xi Wang

    (School of Energy and Power Engineering, Beihang University, Beijing 100083, China)

  • Shubo Yang

    (School of Energy and Power Engineering, Beihang University, Beijing 100083, China)

  • Bei Yang

    (School of Energy and Power Engineering, Beihang University, Beijing 100083, China
    School of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, China)

  • Huairong Chen

    (School of Energy and Power Engineering, Beihang University, Beijing 100083, China)

  • Bin Wang

    (Aero Engine Academy of China, Aero Engine Corporation of China, Beijing 101304, China)

Abstract

Nonlinear control problems in turbofan engines are challenging. No single nonlinear controller can achieve desired control effects in a full flight envelope, but in the case of multiple controllers, there exist problems in the bumpless transfer between different controllers. To this end, this paper presents a bumpless transfer mechanism for an uncertain switched system based on integral sliding mode control (ISMC), and the mechanism can be used for the speed control of turbofan engines. The uncertain switched system is used to describe the turbofan engine dynamics. Then, the ISMC controller is derived for subsystems of the uncertain switched system. A resetting scheme is introduced for the ISMC controller to ensure the continuity of control inputs during the controller transition, as well as the bumpless transfer. In view of the transient behavior caused by controller switching, the global stability of the switched system is analyzed using the multiple Lyapunov function approach and average dwell time condition. Simulation results validate that the designed resetting scheme can ensure the continuity of control input signals and avoid the instability caused by high-frequency controller switching, and increase the control effectiveness of the proposed ISMC method within the full flight envelope.

Suggested Citation

  • Penghui Sun & Xi Wang & Shubo Yang & Bei Yang & Huairong Chen & Bin Wang, 2021. "Bumpless Transfer of Uncertain Switched System and Its Application to Turbofan Engines," Energies, MDPI, vol. 14(16), pages 1-21, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5204-:d:619837
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    References listed on IDEAS

    as
    1. Nannan Gu & Xi Wang & Feiqiang Lin, 2019. "Design of Disturbance Extended State Observer (D-ESO)-Based Constrained Full-State Model Predictive Controller for the Integrated Turbo-Shaft Engine/Rotor System," Energies, MDPI, vol. 12(23), pages 1-24, November.
    2. Ben Niu & Jun Zhao, 2013. "Tracking control for output-constrained nonlinear switched systems with a barrier Lyapunov function," International Journal of Systems Science, Taylor & Francis Journals, vol. 44(5), pages 978-985.
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