Stable multiple model adaptive flight control for accommodation of a large class of control effector failures
Stable multiple model adaptive flight control for accommodation of a large class of control effector failures
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DOI：
10.1109/acc.1999.786187
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
J. Boskovic;R. Mehra
中科院分区：
文献类型：
--
作者：
J. Boskovic;R. Mehra
我们提出了一种新的参数化建模的控制效应器故障在飞行控制应用。故障包括浮动、锁定到位、硬覆盖和失效。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。我们推导出稳定的多模型自适应可重构控制算法的最复杂的情况下，其中一个效应器经历浮动，锁定到位或硬过故障，而所有其他失去有效性。整个可重构控制系统的稳定性证明使用李雅普诺夫方法和识别和控制之间的分离产生的间接自适应控制的背景下。该方法通过F-18航空母舰着陆机动的数值模拟来说明。
We propose a new parametrization for the modeling of control effector failures in flight control applications. The failures include float, 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 the most complex case when one of the effectors undergoes float, lock-in-place or hard-over failure, while all others lose effectiveness. The stability of the overall reconfigurable control system is demonstrated using 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-18 aircraft carrier landing manoeuvre.