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Robust Control for the Suspension Cable System of the Unmanned Helicopter with Sensor Fault under Complex Environment

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  • Rong Mei
  • Ning Wang

Abstract

Aiming at the suspension cable system of an unmanned helicopter with sensor fault under complex environment, this paper studies the robust antiswing tolerant control scheme. To suppress the swing of the hanging load when the unmanned helicopter is in the forward flight state, a nonlinear line motion model is firstly established. Considering the sensor fault of the unmanned helicopter, a sensor fault estimator is developed. By using the fault estimator output, the robust antiswing tolerant controller is proposed using the backstepping technique and sliding mode control method. Under the designed robust antiswing tolerant controller, the desired tracking control performance can be obtained and the swing angle of the load is guaranteed small under the sensor fault. Furthermore, the closed-loop system stability is analyzed by using the Lyapunov technique. Simulation studies are given to show the efficiency of the designed robust antiswing control strategy.

Suggested Citation

  • Rong Mei & Ning Wang, 2021. "Robust Control for the Suspension Cable System of the Unmanned Helicopter with Sensor Fault under Complex Environment," Complexity, Hindawi, vol. 2021, pages 1-9, March.
    • Handle: RePEc:hin:complx:8869292
    DOI: 10.1155/2021/8869292
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    Cited by:

    1. Liu, Lijun & Chen, Mou & Li, Tao, 2022. "Disturbance observer-based robust coordination control for unmanned autonomous helicopter slung-load system via coupling analysis method," Applied Mathematics and Computation, Elsevier, vol. 427(C).

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