Safa, Alireza, Baradarannia, Mahdi, Kharrati, Hamed, Khanmohammadi, Sohrab. (1398). Fault Tolerant Control for Attitude Regulation of a Spacecraft with Delayed Feedback. نشریه مهندسی عمران امیرکبیر, 51(2), 227-236. doi: 10.22060/eej.2018.12030.5027
Alireza Safa; Mahdi Baradarannia; Hamed Kharrati; Sohrab Khanmohammadi. "Fault Tolerant Control for Attitude Regulation of a Spacecraft with Delayed Feedback". نشریه مهندسی عمران امیرکبیر, 51, 2, 1398, 227-236. doi: 10.22060/eej.2018.12030.5027
Safa, Alireza, Baradarannia, Mahdi, Kharrati, Hamed, Khanmohammadi, Sohrab. (1398). 'Fault Tolerant Control for Attitude Regulation of a Spacecraft with Delayed Feedback', نشریه مهندسی عمران امیرکبیر, 51(2), pp. 227-236. doi: 10.22060/eej.2018.12030.5027
Safa, Alireza, Baradarannia, Mahdi, Kharrati, Hamed, Khanmohammadi, Sohrab. Fault Tolerant Control for Attitude Regulation of a Spacecraft with Delayed Feedback. نشریه مهندسی عمران امیرکبیر, 1398; 51(2): 227-236. doi: 10.22060/eej.2018.12030.5027

Fault Tolerant Control for Attitude Regulation of a Spacecraft with Delayed Feedback

AUT Journal of Electrical Engineering
مقاله 44، دوره 51، شماره 2، اسفند 2019، صفحه 227-236    اصل مقاله (1.25 M)
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22060/eej.2018.12030.5027
نویسندگان
Alireza Safa* 1؛ Mahdi Baradarannia2؛ Hamed Kharrati2؛ Sohrab Khanmohammadi2
1Electrical and computer engineering faculy
2Department of Control Engineering, Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran
چکیده
The work presented in this paper discusses time delay compensation of a rigid spacecraft with faulty actuators. The proposed method consists of a nominal controller and an extended state observer. Based on the backstepping method, the nominal control is designed to stabilize the spacecraft in the presence of delayed inputs. Then, the discrepancy between the nominal plant and real system which is influenced by faulty actuators, model uncertainties, and external disturbances is estimated by the extended state observer and actively compensated. The proposed controller does not require exact knowledge of delay, actuator faults and disturbances. By adjusting controller parameters, using the Lyapunov-Krasovski method and properties of modified Rodrigues parameters, it is proved that the investigated control scheme can stabilize the system with respect to a small neighborhood of the origin. Numerical simulation results demonstrate that the acceptable performance of the controlled system is guaranteed in the presence of retreated inputs, the considered faults are tolerated and disturbances are rejected.
کلیدواژه‌ها
Time Delay؛ actuator fault؛ Extended State Observer؛ Backstepping Control
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