Fault tolerant control allocation using Unknown input observers

作者：Cristofaro Andrea^*; Johansen Tor Arne

来源：Automatica, 2014, 50(7): 1891-1897.

DOI：10.1016/j.automatica.2014.05.007

• Fault detection and isolation
• Fault-tolerant
• Control allocation
• Unknown input observers
• Overactuated systems

This paper focuses on the use of unknown input observers for detection and isolation of actuator and effector faults with control reconfiguration in overactuated systems. The proposed approach consists in tuning the observer parameters in order to make the filters decoupled from faults affecting selected groups of actuators or effectors. The control allocation actively uses input redundancy in order to make relevant faults observable. The case study of an overactuated marine vessel supports theoretical developments.

• 出版日期2014-7