Model reference adaptive anti-windup compensation
Model reference adaptive anti-windup compensation
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DOI：
10.1109/cdc51059.2022.9992768
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发表时间：
2022-12
期刊：
影响因子：
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通讯作者：
J. Sofrony;M. Turner;C. M. Richards
中科院分区：
文献类型：
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作者：
J. Sofrony;M. Turner;C. M. Richards
提出了一种具有执行器饱和约束的模型参考自适应控制方案的抗饱和机制。建议的补偿器具有相同的架构，众所周知的非自适应计划，这依赖于假设系统模型是已知的相当准确。这与控制器的自适应性质相反，它假设系统（或其部分）是未知的。这里提出的方法使用的“估计”的系统矩阵的抗饱和补偿制定和修改的自适应律，更新控制器增益。可以观察到，如果达到（未知的）理想控制增益，就会获得一种“模型恢复反饱和”公式。此外，它示出，如果理想的控制信号最终位于控制约束，然后，在一定的条件下，系统的状态将收敛到所需的参考模型。本文重点介绍了模型参考自适应控制系统抗饱和补偿器设计中的主要挑战，并通过飞行控制仿真证明了其成功性。
This paper proposes an anti-windup mechanism for a model reference adaptive control scheme subject to actuator saturation constraints. The proposed compensator has the same architecture as well known non-adaptive schemes, which rely on the assumption that the system model is known fairly accurately. This is in contrast to the adaptive nature of the controller, which assumes that the system (or parts of it) is unknown. The approach proposed here uses of an “estimate” of the system matrices for the anti-windup compensator formulation and modifies the adaptation laws that update the controller gains. It will be observed that if the (unknown) ideal control gain is reached, a type of “model recovery anti-windup” formulation is obtained. In addition, it is shown that if the ideal control signal eventually lies within the control constraints, then, under certain conditions, the system states will converge to those of the reference model as desired. The paper highlights the main challenges involved in the design of anti-windup compensators for model-reference adaptive control systems and demonstrates its success via a flight control simulation.