Robust nonlinear flight control method against control saturation

被引：0
|
作者：
Sun B. [1 ]
Chen W. [2 ]
机构：
[1] School of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin
[2] Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2021年 / 47卷 / 12期
关键词：
Aerocraft; Antisaturation compensation; Control saturation; Nonlinear control; Radial Basis Function (RBF) network;
D O I：
10.13700/j.bh.1001-5965.2020.0473
中图分类号：
学科分类号：
摘要：
When the aerocraft is maneuvering in a large envelope, its rudder surface and engine are easily saturated. This phenomenon will not only affect the stability of the closed-loop system, but also greatly shorten the service life of the engine and other key components. To solve this problem, a nonlinear flight control method against saturation was designed. First, the strict feedback nonlinear model of the aerocraft was established. Then, the rudder control and engine speed control commands were designed by using adaptive backstepping design method, and the modeling error was approximated by Radial Basis Function (RBF) network. To solve the control saturation problem, the corresponding anti-saturation dynamic compensation systems were designed respectively. By establishing the Lyapunov function of the closed-loop system, the update weights of RBF network and the structural parameters of anti-saturation dynamic compensation system were determined by stability theory, which ensures the global stability of the designed closed-loop control system. Finally, the simulation results show that, when the control saturation occurs, the anti-saturation compensation system can modify the control command in real time, which helps the system to get out of saturation state quickly and shorten the saturation time by 30%-60%, with high command tracking accuracy. © 2021, Editorial Board of JBUAA. All right reserved.
引用
收藏
页码：2475 / 2483
页数：8
相关论文
共 16 条
  • [1] SUN J G, MENG Q P, LI C M., Adaptive saturated guidance law designed for anti-ship missile with terminal angular constraint, Command Control & Simulation, 42, 3, pp. 118-122, (2020)
  • [2] HU J C, ZHANG H H, WANG Z G., Hybrid adaptive control of spacecraft attitude with input saturation and external disturbance[J], Journal of Guidance, Control, and Dynamices, 42, 3, pp. 642-649, (2019)
  • [3] PAULO R A, MIOARA J, CHRISTOPHE L, Et al., Stable model predictives strategy for rendezvous hovering phases allowing for control saturation[J], Journal of Guidance, Control, and Dynamices, 42, 8, pp. 1658-1675, (2019)
  • [4] HU Q L, TAN X, AKELLA M A., Fitie-time fault-tolerant spacecraft attitude control with torque saturation[J], Journal of Guidance, Control, and Dynamices, 40, 10, pp. 2524-2537, (2017)
  • [5] LIU T H, AN H, WANG C H., Anti-windup switched control of hypersonic vehicle, Journal of Astronautics, 41, 3, pp. 329-336, (2020)
  • [6] LIU T H, ZHANG L X, ZHANG R X, Et al., Hypersonic vehicle modeling and anti saturation control method based on switched system
  • [7] WU Y F, MA D W, LE G G., Robust adaptive backstepping control for rocket launcher position servo system with constraint control, Acta Armamentarii, 34, 4, pp. 476-483, (2013)
  • [8] ZHOU H B, PEI H L, HE Y B., Trajectory-tracking control for small unmanned helicopter with state constraints, Control Theory & Applications, 29, 6, pp. 778-784, (2012)
  • [9] HERRMANN G, MENON P P, TURNER M C., Anti-windup synthesis for nonlinear dynamic inversion control schemes, International Journal of Robust and Nonlinear Control, 20, 13, pp. 1465-1482, (2010)
  • [10] GUILLAUME J J., Fault-tolerant flight control and guidance systems, pp. 118-119, (2009)
12