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On robust LPV-based observation of fuel slosh dynamics for attitude control design

机译：基于鲁棒LPV的燃油晃荡动力学观测用于姿态控制设计

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Most attitude control scenarios are highly affected by fuel slosh dynamics that must be carefully taken into account to preserve pointing accuracy. Since such dynamics are not easily predictable, standard strategies consist of bounding the performances of the control system to avoid interactions between the rigid dynamics of the spacecraft and the oscillating liquid motion inside the fuel tank. Thanks to a recently developed control-oriented CFD-based fuel slosh model, an alternative approach is evaluated in this paper. It is based on a reformulation of the slosh effects in the Linear-Parameter-Varying (LPV) framework from which a robust LPV observer is easily derived. The latter is then classically used in a disturbance compensation scheme. The proposed strategy is illustrated on a simple but realistic single axis attitude control scenario for a small satellite using reaction wheels.
机译：大多数姿态控制方案受燃油晃荡动力学的影响很大，必须谨慎考虑这些因素以保持指向精度。由于这样的动力学不容易预测，因此标准策略包括限制控制系统的性能，以避免航天器的刚性动力学与燃料箱内部的振荡液体运动之间的相互作用。得益于最近开发的基于控制的基于CFD的燃油晃荡模型，本文评估了一种替代方法。它基于线性参数变化（LPV）框架中的晃动效果的重新表述，可以轻松地从中得出可靠的LPV观察器。然后经典地将后者用于干扰补偿方案中。在使用反作用轮的小型卫星的简单但现实的单轴姿态控制方案中说明了所提出的策略。

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