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针对飞机大机动飞行时存在的模型气动参数不确定性和外界扰动等影响因素,提出了一种基于反步法的鲁棒自适应滑模控制方法。基于反步的思想,适当选取李亚谱诺夫函数回馈递推得到不确定参数自适应律,并在最后一步结合线性滑模设计滑模控制器。对某飞机六自由度模型的大机动仿真验证了该方法的有效性。
Aiming at the uncertainties of the aerodynamic parameters and the external disturbances of the existing aircraft during large maneuvering flight, a robust adaptive sliding mode control method based on the backstepping method is proposed. Based on the idea of backstepping, the adaptive law of uncertain parameters is obtained by appropriately choosing the Lyapunov function feedback recursion, and the sliding mode controller is designed with linear sliding mode in the last step. The large-scale maneuver simulation of a six-degree-of-freedom model validates the effectiveness of this method.