航空学报 > 2025, Vol. 46 Issue (6): 531470-531470   doi: 10.7527/S1000-6893.2024.31470

面对称飞行器助推段自适应预设时间/性能控制

崔乃刚1, 屈国欣1,2, 马鑫海1, 徐世昊1, 韦常柱1()   

  1. 1.哈尔滨工业大学 航天学院,哈尔滨 150001
    2.北京机电工程总体设计部,北京 100854
  • 收稿日期:2024-10-30 修回日期:2024-11-18 接受日期:2024-12-24 出版日期:2024-12-31 发布日期:2024-12-30
  • 通讯作者: 韦常柱 E-mail:weichangzhu@hit.edu.cn
  • 基金资助:
    国家自然科学基金(62373124)

Adaptive prescribed-time/performance control for plane-symmetric aircraft in boost phase

Naigang CUI1, Guoxin QU1,2, Xinhai MA1, Shihao XU1, Changzhu WEI1()   

  1. 1.School of Astronautics,Harbin Institute of Technology,Harbin  150001,China
    2.Beijing System Design Institute of Electro-Mechanic Engineering,Beijing  100854,China
  • Received:2024-10-30 Revised:2024-11-18 Accepted:2024-12-24 Online:2024-12-31 Published:2024-12-30
  • Contact: Changzhu WEI E-mail:weichangzhu@hit.edu.cn
  • Supported by:
    National Natural Science Foundation of China(62373124)

摘要:

针对存在推力线偏斜、显著非对称气动及高空切变风扰的面对称飞行器助推段姿态跟踪控制问题,提出一种自适应预设时间/性能控制方法,使姿态控制的收敛时间与稳态精度由过程函数中的2个独立参数便捷地预先设定。首先建立面对称飞行器动力学模型,并将其转化为双积分串联形式的控制模型;其次设计分段连续的过程函数约束收敛时间与稳态精度,结合障碍函数对其进行变换进而获得无约束系统;随后基于反步法,设计保证无约束变量有界的自适应控制律,引入分段连续函数避免控制抖振,并采用神经网络自适应逼近补偿扰动;然后针对风切变带来突发大偏差下预设性能方法存在奇异性的问题,设计过程函数重置策略放宽约束边界,消除控制奇异;最后基于Lyapunov理论证明闭环系统的稳定性,并通过数值仿真验证控制方法的有效性。

关键词: 面对称飞行器, 助推段, 自适应控制, 预设时间控制, 预设性能控制

Abstract:

In this paper, an adaptive prescribed-time/performance control method is proposed for the plane-symmetric aircraft in the boost phase subject to thrust misalignment, significant asymmetric aerodynamics, and high-altitude wind shear. This method allows the convergence time and steady-state accuracy of attitude control to be conveniently pre-set using two independent parameters of the process function. Firstly, a dynamic model of the plane-symmetrical aircraft is established and transformed into a double-integrator cascaded control-oriented model. Secondly, a piece-wise continuous process function is designed to constrain the convergence time and steady-state accuracy, and an unconstrained system is obtained by using barrier function-based transformation. Thirdly, based on the backstepping method, an adaptive control law is designed to ensure the boundedness of the unconstrained variables. A segmented continuous function is introduced to avoid control chattering, and a neural network is employed for adaptive approximation and disturbance compensation. To address the singularity issue of the prescribed-performance control method with large deviations caused by wind shear, a reset strategy of process function is devised to relax the constraint boundaries and eliminate control singularities. Finally, the stability of the closed-loop system is proven based on the Lyapunov method, and the effectiveness of the control method is validated through numerical simulations.

Key words: plane-symmetric aircraft, boost phase, adaptive control, prescribed-time control, prescribed-performance control

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