基于指數(shù)收斂的四旋翼無人機魯棒自適應(yīng)飛行控制
[Abstract]:To solve the robust adaptive flight problem of four-rotor UAV, a control method based on exponential convergence is proposed. Considering the nonlinear characteristics of the four-rotor system, such as underactuation and strong coupling, the linearized feedback control strategy is used to realize the basic control of the trajectory tracking flight capability of the four-rotor system. Based on exponential convergence disturbance observer, the robust and adaptive control of four-rotor flight is realized based on exponential convergence disturbance observer for linearized feedback control, which is easily affected by unknown disturbance from inside and outside of the system. Linear feedback and state observer control systems are stable based on exponential convergence. The simulation results show that the disturbance observer has a good estimation ability to the unknown disturbance in the four-rotor system. The proposed control system based on exponential convergence is simple in structure. Moreover, it has strong interference suppression ability and high system stability, which meets the requirements of robust and adaptive flight capability of four-rotor UAV.
【作者單位】: 東北大學(xué)機械工程與自動化學(xué)院;
【基金】:國家自然科學(xué)基金資助項目(51375080) 中央高;究蒲袠I(yè)務(wù)研究生科研創(chuàng)新項目(N1503060002)
【分類號】:V279;V249.1
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