Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing Failures
To effectively overcome changes in aircraft aerodynamic and control characteristics caused by wing surface damage, this paper proposes a fault-tolerant control method based on an extended state observer (ESO) to ensure flight mission requirements under wing surface and control surface failures. Firs...
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MDPI AG
2025-04-01
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| Online Access: | https://www.mdpi.com/2076-0825/14/5/206 |
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| author | Yansheng Geng Bo Wang Xiaoxiong Liu |
| author_facet | Yansheng Geng Bo Wang Xiaoxiong Liu |
| author_sort | Yansheng Geng |
| collection | DOAJ |
| description | To effectively overcome changes in aircraft aerodynamic and control characteristics caused by wing surface damage, this paper proposes a fault-tolerant control method based on an extended state observer (ESO) to ensure flight mission requirements under wing surface and control surface failures. First, considering the characteristics and requirements of backstepping control in addressing nonlinear problems, an extended observer is designed to estimate disturbances and uncertainties induced by wing surface failures, and its stability is analyzed by using the Lyapunov method. Next, a backstepping control law for the airflow angle loop is designed based on the extended observer. The serial-chain method is introduced as an allocation algorithm for fault-tolerant flight control in order to compensate for the changes in control efficiency caused by wing surface faults. And stability analysis is conducted by integrating the control characteristics of the aircraft’s airflow angle loop, proving the uniformly bounded stability of the controller. Finally, fault-tolerant control simulations are performed under scenarios of wing damage, elevator damage, and actuator jamming faults. The simulation results demonstrate that the proposed method achieves excellent control performance during wing surface failures. |
| format | Article |
| id | doaj-art-e7ef9f467dc44d73b58b68f23c8ecc0b |
| institution | DOAJ |
| issn | 2076-0825 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj-art-e7ef9f467dc44d73b58b68f23c8ecc0b2025-08-20T03:14:38ZengMDPI AGActuators2076-08252025-04-0114520610.3390/act14050206Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing FailuresYansheng Geng0Bo Wang1Xiaoxiong Liu2School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Automation, Northwestern Polytechnical University, Xi’an 710072, ChinaTo effectively overcome changes in aircraft aerodynamic and control characteristics caused by wing surface damage, this paper proposes a fault-tolerant control method based on an extended state observer (ESO) to ensure flight mission requirements under wing surface and control surface failures. First, considering the characteristics and requirements of backstepping control in addressing nonlinear problems, an extended observer is designed to estimate disturbances and uncertainties induced by wing surface failures, and its stability is analyzed by using the Lyapunov method. Next, a backstepping control law for the airflow angle loop is designed based on the extended observer. The serial-chain method is introduced as an allocation algorithm for fault-tolerant flight control in order to compensate for the changes in control efficiency caused by wing surface faults. And stability analysis is conducted by integrating the control characteristics of the aircraft’s airflow angle loop, proving the uniformly bounded stability of the controller. Finally, fault-tolerant control simulations are performed under scenarios of wing damage, elevator damage, and actuator jamming faults. The simulation results demonstrate that the proposed method achieves excellent control performance during wing surface failures.https://www.mdpi.com/2076-0825/14/5/206extended state observer (ESO)wing surface failuresfault-tolerant controlbackstepping control |
| spellingShingle | Yansheng Geng Bo Wang Xiaoxiong Liu Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing Failures Actuators extended state observer (ESO) wing surface failures fault-tolerant control backstepping control |
| title | Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing Failures |
| title_full | Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing Failures |
| title_fullStr | Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing Failures |
| title_full_unstemmed | Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing Failures |
| title_short | Nonlinear Backstepping Fault-Tolerant Controllers with Extended State Observers for Aircraft Wing Failures |
| title_sort | nonlinear backstepping fault tolerant controllers with extended state observers for aircraft wing failures |
| topic | extended state observer (ESO) wing surface failures fault-tolerant control backstepping control |
| url | https://www.mdpi.com/2076-0825/14/5/206 |
| work_keys_str_mv | AT yanshenggeng nonlinearbacksteppingfaulttolerantcontrollerswithextendedstateobserversforaircraftwingfailures AT bowang nonlinearbacksteppingfaulttolerantcontrollerswithextendedstateobserversforaircraftwingfailures AT xiaoxiongliu nonlinearbacksteppingfaulttolerantcontrollerswithextendedstateobserversforaircraftwingfailures |