Fault-Tolerance of a Transport Aircraft with Adaptive Control and Optimal Command Allocation

摘要: How to achieve high performance and reliability against various unforeseen events, uncertainties other changes in plant dynamics has been a very challenging issue for control system design recent years. Reconfigurable flight controls aim guarantee greater survivability all the cases which systems be controlled may poorly modelled or parameters of subjected large variations with respect operating environment. A suitable approach problem reconfiguration consists redesigning its own structure and/or re-computing gains case unexpected events model environmental uncertainties. number different approaches have proposed developed past years (Patton, 1997). In this chapter Direct Adaptive Model Following (DAMF) algorithm used purposes. It is possible find literature great amount techniques implement (Bodson & Groszkiewicz, 1997; Calise et al., 2001; Boskovic Mehra, 2002; Kim 2003; Tandale Valasek, 2003). The Lyapunov theory described (Kim 2003) attractive features both terms effectiveness implementation it develop fault-tolerant scheme chapter. Another important matter Control Allocation (CA) problem. concerns possibility exploit actuators redundancy variables order redistribute effort among available effectors. way commands needed attain desired moments can computed even presence actuator failures, while also dealing position rate limits allocation are (Virnig Bodden, 2000; Enns, 1998; Buffington Chandler, Durham Bordignon, 1995; Burken 2001). technique one introduced by Harkegard (Harkegard, 2002) based on active set methods, effective real-time applications converge finite steps. Therefore proposed. composed core laws, DAMF technique, robustness capabilities, CA system, method, properly allocate healthy actuators. Numerical results