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arXiv 2601.03386eess.SYcs.ROcs.SY
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无人机带偏载具的建模与控制

Modeling and Control for UAV with Off-center Slung Load

Dept. of Elec. and Comp. Eng. Univ. of Alberta(电子与计算机工程系阿尔伯塔大学);School of Science, Dalian Minzu University(科学学院大连民族大学);Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, and School of Control Science and Engineering, Dalian University of Technology(教育部智能控制与优化工业设备重点实验室,控制科学与工程学院,大连理工大学)

Zongyang Lv, Yanmei Jia, Yongqing Liu, Alan F. Lynch, Qing Zhao, Yuhu Wu

AI总结:

本研究针对无人机带偏载具的非线性动力学耦合问题,提出基于吊挂点的建模与 cascade 控制策略,通过仿真和实验验证了控制系统的有效性。

摘要:

无人机带载系统是经典的空中运输系统。在实际应用中,由于任务需求或机械干扰,吊挂点往往不与无人机的质心(CoM)对齐。这种偏移会在系统的非线性动力学中产生耦合,导致复杂的运动控制问题。现有研究通常以无人机的质心为参考进行系统建模。在本工作中,我们采用吊挂点作为参考。基于新模型,开发了一种 cascade 控制策略。在中环控制器中,利用吊挂点的加速度来调节吊挂载具的摆角,无需考虑吊挂载具与无人机之间的耦合。内环控制器设计用于跟踪无人机的姿态,无需对耦合效应进行简化。我们通过 Lyapunov 方法证明了闭环系统的局部指数稳定性。最后,通过仿真和实验验证了所提控制系统的有效性。

英文摘要:

Unmanned aerial vehicle (UAV) with slung load system is a classic air transportation system. In practical applications, the suspension point of the slung load does not always align with the center of mass (CoM) of the UAV due to mission requirements or mechanical interference. This offset creates coupling in the system's nonlinear dynamics which leads to a complicated motion control problem. In existing research, modeling of the system are performed about the UAV's CoM. In this work we use the point of suspension instead. Based on the new model, a cascade control strategy is developed. In the middle-loop controller, the acceleration of the suspension point is used to regulate the swing angle of the slung load without the need for considering the coupling between the slung load and the UAV. An inner-loop controller is designed to track the UAV's attitude without the need of simplification on the coupling effects. We prove local exponential stability of the closed-loop using Lyapunov approach. Finally, simulations and experiments are conducted to validate the proposed control system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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