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Acta Armamentarii ›› 2021, Vol. 42 ›› Issue (3): 521-529.doi: 10.3969/j.issn.1000-1093.2021.03.008

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Adaptive Fault-tolerant Control of Hypersonic Vehicles

YUE Bin1, MA Wen2, HU Weijun2   

  1. (1.Beijing Aeronautical Technology Research Center, Beijing 100076, China; 2.School of Astronautics, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, China)
  • Online:2021-04-26

Abstract: An adaptive fault-tolerant control strategy is proposed to solve the problems of multiple disturbances and actuator failures in hypersonic vehicle. An aircraft model with multiple disturbances and actuator failures is established. An adaptive reconfigurable compound controller was designed, which can compensate the influence of actuator failure on attitude control system by dynamically adjusting controller parameters. The designed controller has excellent control performance by estimating the upper bound of the multiple disturbances and using the hyperbolic tangent function to compensate the influence of the multiple disturbances when the multiple disturbances and actuator failures exist simultaneously. For the difficult problem of solving the micro-components of virtual control instructions, the first-order filter is used to filter the virtual control instructions in the process of controller design, thus avoiding the complicated derivation process. The asymptotic stability of the controller is proved by using Lyapunov method, and the simulated results show the feasibility and effectiveness of the proposed method.

Key words: hypersonicvehicle, multipledisturbance, actuatorfailure, fault-tolerantcontrol, adaptivecontrol

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