航空学报 > 2023, Vol. 44 Issue (23): 628103-628103   doi: 10.7527/S1000-6893.2022.28103

可重复使用运载火箭技术专栏

垂直起降可重复使用运载火箭全剖面飞行预设性能控制

张亮1(), 李丹钰1, 崔乃刚2, 李源3   

  1. 1.中山大学 航空航天学院,深圳  518107
    2.哈尔滨工业大学 航天学院,哈尔滨  150001
    3.南京理工大学 能源与动力工程学院,南京  210000
  • 收稿日期:2022-10-11 修回日期:2022-11-25 接受日期:2023-02-10 出版日期:2023-12-15 发布日期:2023-02-26
  • 通讯作者: 张亮 E-mail:zhangliang8@mail.sysu.edu.cn
  • 基金资助:
    国家自然科学基金(12002398)

Full flight profile prescribed performance control for vertical take-off and vertical landing reusable launch vehicle

Liang ZHANG1(), Danyu LI1, Naigang CUI2, Yuan LI3   

  1. 1.School of Aeronautics and Astronautics,Sun Yat-Sen University,Shenzhen  518107,China
    2.School of Astronautics,Harbin Institute of Technology,Harbin  150001,China
    3.School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing  210000,China
  • Received:2022-10-11 Revised:2022-11-25 Accepted:2023-02-10 Online:2023-12-15 Published:2023-02-26
  • Contact: Liang ZHANG E-mail:zhangliang8@mail.sysu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(12002398)

摘要:

针对垂直起降可重复使用运载火箭在多异类执行机构作用下的全剖面飞行高精度强鲁棒姿态控制系统设计需求,提出了预设性能控制方法,采用一套控制结构和控制参数,可实现火箭的全剖面飞行控制。首先,建立了垂直起降可重复使用运载火箭的7个飞行阶段动力学模型,同时为减少制导指令切换产生的突变,设计了二阶系统参考模型,并基于参考模型推导了姿态跟踪误差状态方程。其次,设计了一种新型的具有指定收敛时间特性的预设性能函数,并推导了新的误差变量,建立了控制模型。然后,基于新的误差变量推导了具有预定时间收敛特性的姿态控制律,并证明了其稳定性。最后,为进一步提高鲁棒性,引入自抗扰控制中的扩张状态观测器理念,对新误差变量的二阶导数和外界扰动进行估计,从而降低了控制器的复杂度,提高了控制精度。通过与比例微分(PD)控制器、自抗扰滑模控制器和其他预设性能控制器进行仿真比较,表明所提出的方法具有参数少、调参简单、精度高和鲁棒性强等优点。

关键词: 垂直起降火箭, 预设性能控制, 预定时间收敛, 扩张状态观测器, 飞行控制

Abstract:

To solve the problem of high-precision and robust attitude control system design for vertical takeoff and vertical landing reusable vehicle in full flight profile under the action of multiple heterogeneous actuators, a prescribed performance control method is proposed. A set of control structure and control parameters are adopted to realize the full flight profile control of the vehicle. Firstly, the dynamics model of the vehicle in seven flight stages is established. To reduce the mutation caused by guidance command switching, a second-order reference model is designed, and the state equation of attitude tracking error is derived based on the reference model. Secondly, a novel prescribed performance function with appointed convergence time is designed. The new error variables are derived, and the control model is also established. Then, based on the new error variables, the attitude control law with predefined time convergence characteristics is derived and its stability is proved. Finally, to further improve the robustness, an extended state observer is introduced to estimate the second derivative of the new error variable and the external disturbance, so as to reduce the complexity of the controller and improve the control accuracy. Simulation results show that compared with the Proportional Differential (PD) controller, active disturbance rejection sliding mode controller and other prescribed performance controller, the proposed method has the advantages of fewer parameters, simpler parameter tuning, higher precision and stronger robustness.

Key words: vertical take-off and vertical landing vehicle, prescribed performance control, predefined time convergence, extended state observer, flight control

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