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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2020, Vol. 41 ›› Issue (11): 623850-623850.doi: 10.7527/S1000-6893.2020.23850

• Special Topic of Guidance and Control Technology for Aerospace Vehicles • Previous Articles     Next Articles

Composite fault tolerant control for aerospace vehicles with swing engines and aerodynamic fins

DONG Wang1,2, QI Ruiyun1,2, JIANG Bin1,2   

  1. 1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China;
    2. Key Laboratory of Navigation, Control and Heath-Management Technologies of Advanced Aerocraft, Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
  • Received:2020-01-22 Revised:2020-02-11 Online:2020-11-15 Published:2020-03-06
  • Supported by:
    National Natural Science Foundation of China (61873127, 61533009); Aeronautical Science Foundation of China (2017ZA52013);"Six Talents Peaks" High-level Talents Funding Project in Jiangsu Province of China (HKHT-010)

Abstract: Regarding the composite fault-tolerant control problem of direct force and aerodynamic force, a fault-tolerant control strategy based on the adaptive sliding mode is designed for space vehicles with engine thrust loss. First of all, for swing engines with thrust loss, considering the practical characteristics of X-type installation, the fault equivalent of the linearized pitch channel control model is carried out, the fault and disturbance information are estimated by the adaptive method, and the fault-tolerant controller is designed by comprehensively using the control surfaces and the swing of engines. Secondly, considering the influence of the longitudinal fault-tolerant control on the lateral stability of the aircraft, based on the adaptive backstepping method, the redundant control surfaces are used to eliminate the influence of the interference torque and ensure the lateral stability. Finally, based on the Lyapunov stability theory, the method is analyzed, and the simulation results verify the effectiveness of the designed composite fault-tolerant control scheme.

Key words: aerospace vehicle, fault tolerant control, swing engine, composite control, adaptive estimation

CLC Number: