Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults
This study investigated the adaptive fault-tolerant control (FTC) for a flexible variable structure spacecraft in the presence of external disturbance, multiple actuator faults, and saturation. The attitude system model of a variable structure spacecraft and actuator fault model are first given. A s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/11/5319 |
| _version_ | 1827665663284477952 |
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| author | Kai-Yu Hu Wenjing Sun Chunxia Yang |
| author_facet | Kai-Yu Hu Wenjing Sun Chunxia Yang |
| author_sort | Kai-Yu Hu |
| collection | DOAJ |
| description | This study investigated the adaptive fault-tolerant control (FTC) for a flexible variable structure spacecraft in the presence of external disturbance, multiple actuator faults, and saturation. The attitude system model of a variable structure spacecraft and actuator fault model are first given. A sliding mode-based fault detection observer and a radial basis function-based fault estimation observer were designed to detect the time of actuator fault occurrence and estimate the amplitude of an unknown fault, respectively. Then, the adaptive FTC with variable structure harmonic functions was proposed to automatically repair multiple actuator faults, which first guaranteed that the state trajectory of attitude systems without actuator saturation converges to a neighborhood of the origin. Then, another improved adaptive FTC scheme was further proposed in the actuator saturation constraint case, ensuring that all the closed-loop signals are finite-time convergence. Finally, simulation results are given to illustrate the effectiveness of the proposed method. |
| first_indexed | 2024-03-10T01:32:14Z |
| format | Article |
| id | doaj.art-09891f4547644d7bbde581b5e03ae62a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T01:32:14Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-09891f4547644d7bbde581b5e03ae62a2023-11-23T13:39:41ZengMDPI AGApplied Sciences2076-34172022-05-011211531910.3390/app12115319Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple FaultsKai-Yu Hu0Wenjing Sun1Chunxia Yang2Aerospace Software Evaluation Center, Beijing Jinghang Institute of Computing and Communication, Beijing 100074, ChinaAerospace Software Evaluation Center, Beijing Jinghang Institute of Computing and Communication, Beijing 100074, ChinaAerospace Software Evaluation Center, Beijing Jinghang Institute of Computing and Communication, Beijing 100074, ChinaThis study investigated the adaptive fault-tolerant control (FTC) for a flexible variable structure spacecraft in the presence of external disturbance, multiple actuator faults, and saturation. The attitude system model of a variable structure spacecraft and actuator fault model are first given. A sliding mode-based fault detection observer and a radial basis function-based fault estimation observer were designed to detect the time of actuator fault occurrence and estimate the amplitude of an unknown fault, respectively. Then, the adaptive FTC with variable structure harmonic functions was proposed to automatically repair multiple actuator faults, which first guaranteed that the state trajectory of attitude systems without actuator saturation converges to a neighborhood of the origin. Then, another improved adaptive FTC scheme was further proposed in the actuator saturation constraint case, ensuring that all the closed-loop signals are finite-time convergence. Finally, simulation results are given to illustrate the effectiveness of the proposed method.https://www.mdpi.com/2076-3417/12/11/5319fault-tolerant controlfault estimationfault detectionmultiple actuator faultsactuator saturation |
| spellingShingle | Kai-Yu Hu Wenjing Sun Chunxia Yang Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults Applied Sciences fault-tolerant control fault estimation fault detection multiple actuator faults actuator saturation |
| title | Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults |
| title_full | Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults |
| title_fullStr | Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults |
| title_full_unstemmed | Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults |
| title_short | Adaptive Fault-Tolerant Control for Flexible Variable Structure Spacecraft with Actuator Saturation and Multiple Faults |
| title_sort | adaptive fault tolerant control for flexible variable structure spacecraft with actuator saturation and multiple faults |
| topic | fault-tolerant control fault estimation fault detection multiple actuator faults actuator saturation |
| url | https://www.mdpi.com/2076-3417/12/11/5319 |
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