二重傾斜UAVプラットフォームのための動的制御配分
Dynamic Control Allocation for Dual-Tilt UAV Platforms
二重傾斜可能なヘキサローターUAVの軌道追従タスクにおいて、高レベルコントローラとアクチュエータの動的制御配分則を階層的に構成し、飽和を考慮して冗長性を活用する手法を提案した。
詳しい要約
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著者: Marcello Sorge, Federico Ciresola, Giulia Michieletto, Angelo Cenedese
分類: cs.RO
原文アブストラクト
This paper focuses on dynamic control allocation for a hexarotor UAV platform, considering a trajectory tracking task as as case study. It is assumed that the platform is dual-tilting, meaning that it is able to tilt each propeller independently during flight, along two orthogonal axis. We present a hierarchical control structure composed of a high-level controller generating the required wrench for the tracking task, and a control allocation law ensuring that the actuators produce such wrench. The allocator imposes desired first-order dynamics on the actuators set, and exploits system redundancy to optimize the actuators state with respect to a given objective function. Unlike other studies on the subject, we explicitly model actuator saturation and provide theoretical insights on its effect on control performances. We also investigate the role of propeller tilt angles, by imposing asymmetric shapes in the objective function. Numerical simulations are presented to validate the allocation strategy.
