Multiple-Model Adaptive Flight Control Scheme for Accommodation of Actuator Failures
Multiple-Model Adaptive Flight Control Scheme for Accommodation of Actuator Failures
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DOI：
10.2514/2.4938
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发表时间：
2002-07
影响因子：
2.6
通讯作者：
J. Boskovic;R. Mehra
中科院分区：
文献类型：
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作者：
J. Boskovic;R. Mehra
本文提出了一种新的用于飞行控制中操纵面故障建模的参数化方法和一种用于故障检测、识别和调节的稳定自适应方案。失效包括锁定到位、硬过和失效。结果表明，所得到的表示自然导致相应的控制问题，可以使用多模型自适应可重构控制方法来解决的多模型制定。我们得到稳定的多模型自适应可重构控制算法的几种情况下，越来越复杂，包括最复杂的情况下，其中一个效应器发生锁定到位或硬过故障，和所有其他失去有效性。在所有情况下，整个可重构控制系统的稳定性证明使用多个李雅普诺夫函数，扩展的李雅普诺夫方法，和识别和控制之间的分离产生的背景下，间接自适应控制。该方法是通过数值模拟的F/A-18飞机在航母着陆。
A new parameterization for the modeling of control effector failures in flight control applications and a stable adaptive scheme for failure detection, identification, and accommodation is proposed. The failures include lock in place, hard over, and loss of effectiveness. It is shown that the resulting representation leads naturally to a multiple-model formulation of the corresponding control problem that can be solved using a multiple-model adaptive reconfigurable control approach. We derive stable multiple-model adaptive reconfigurable control algorithms for several cases of increasing complexity, including the most complex case, wherein one of the effectors undergoes lock-in-place or hard-over failure, and all others lose effectiveness. In all cases, the stability of the overall reconfigurable control system is demonstrated using multiple Lyapunov functions, extensions of the Lyapunov method, and the separation between identification and control arising in the context of indirect adaptive control. The approach is illustrated through numerical simulations of the F/A-18 aircraft during carrier landing.