Attitude Tracking Control Reconfiguration for Space Launch Vehicle With Thrust Loss Fault

• Published in: IEEE access Vol. 7; pp. 184353 - 184364
• Main Authors: Zhang, Yaokun, Li, Zhu, Cheng, Zhongtao, Liu, Lei, Wang, Yongji
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Actuators; Aerospace electronics; Analytical models; Attitude control; cascaded pseudo-inverse allocation; control reconfiguration strategy; Control systems; Dynamic models; Engines; Gain scheduling; neuron adaptive gain scheduling; reconfigurability analysis; Reconfiguration; Rockets; Space launch vehicle; Thrust; thrust loss fault; Tracking control
• ISSN: 2169-3536; 2169-3536
• DOI: 10.1109/ACCESS.2019.2959836

The thrust loss fault of the space launch vehicle is quite different from that of ordinary actuator efficiency loss. Focusing on the attitude tracking control problem of the launch vehicle with thrust loss fault, the special impacts of that fault on the control system are explored, and a two-stage control reconfiguration strategy based on the cascaded pseudo-inverse allocation method and the neuron adaptive gain scheduling method is proposed for faults with different severity. Meanwhile, a practical reconfigurability analysis for the faulty system based on the control state reachability is presented for some representative fault scenarios. Based on the nonlinear dynamical model of the faulty system, lots of numerical simulations under various fault scenarios are finally carried out. The results indicate that the designed control reconfiguration strategy not only can effectively deal with the thrust loss fault with high practicability but also is easy to implement.