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重心变化四旋翼的建模与自抗扰控制
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摘要
针对四旋翼应用中重心变化和飞行器参数不确定的问题,本文提出了一种重心变化四旋翼的建模方法,建模采用了理想机体加负载的方式来等效重心变化四旋翼,方便了建模,也使得模型更加准确。结合模型提出一种基于自抗扰控制器的姿态控制算法,相比于传统PID控制在重心变化的情况下具有超调小、调节时间短、鲁棒性强的优点。在Matlab/Simulink上进行了模拟仿真,验证了算法的有效性。
In order to solve the problem of variable center of gravity and uncertain parameters in quadrotor applications, this paper presents a modeling method for unbalanced quadrotor, this model adopted an ideal body with loading added method to simulate an unbalanced quadrotor, which is easier to modeling and more precise than other modeling methods. Combine with this model we proposed an ADRC attitude control algorithm, which has the advantage of smaller overshoot, shorter accommodation time and more robust than conventional PID method. The simulations are carried out on Matlab/Simulink to verify the effectiveness of the algorithm.
引文
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