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Closed-loop fault-tolerant dynamic control allocation design and implementation.

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Název: Closed-loop fault-tolerant dynamic control allocation design and implementation.
Autoři: Jing, Hongyu1 (AUTHOR) hongyujing@stu.hit.edu.cn, Ma, Kemao1 (AUTHOR) makemao@hit.edu.cn
Zdroj: ISA Transactions. Dec2025:Part A, Vol. 167, p1-14. 14p.
Témata: Fault-tolerant control systems, Closed loop systems, Feedback control systems, Actuators
Abstrakt: Under a baseline virtual control law, a closed-loop fault-tolerant dynamic control allocation algorithm is designed to optimally allocate the virtual control demand to multiple actuators, which, with constrained dynamic actuators considered, ensures the good tracking of the actual control input implementable by actuators to the desired control demand in the presence of actuator faults. In order to implement the proposed control allocation algorithm, considering effectiveness loss faults of dynamic actuators, a discrete iterative learning observer is constructed based on actuator dynamics to detect and estimate actuator states and effectiveness factors accurately and rapidly. Simulation results of both a numerical example and an aircraft application case are shown to demonstrate the acceptable performance advantages by using the proposed fault-tolerant control approach. • A kind of novel design structure of a fault-tolerant controller is proposed. • The closed-loop fault-tolerant dynamic control allocation algorithm is proposed which compensates for both actuator dynamics and faults. • The designed discrete observer more efficiently estimates actuator information. • The redesign of the complex virtual control law can be avoided. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index
Popis
Abstrakt:Under a baseline virtual control law, a closed-loop fault-tolerant dynamic control allocation algorithm is designed to optimally allocate the virtual control demand to multiple actuators, which, with constrained dynamic actuators considered, ensures the good tracking of the actual control input implementable by actuators to the desired control demand in the presence of actuator faults. In order to implement the proposed control allocation algorithm, considering effectiveness loss faults of dynamic actuators, a discrete iterative learning observer is constructed based on actuator dynamics to detect and estimate actuator states and effectiveness factors accurately and rapidly. Simulation results of both a numerical example and an aircraft application case are shown to demonstrate the acceptable performance advantages by using the proposed fault-tolerant control approach. • A kind of novel design structure of a fault-tolerant controller is proposed. • The closed-loop fault-tolerant dynamic control allocation algorithm is proposed which compensates for both actuator dynamics and faults. • The designed discrete observer more efficiently estimates actuator information. • The redesign of the complex virtual control law can be avoided. [ABSTRACT FROM AUTHOR]
ISSN:00190578
DOI:10.1016/j.isatra.2025.08.016