Journal of Systems Engineering and Electronics ›› 2018, Vol. 29 ›› Issue (1): 116-133.doi: 10.21629/JSEE.2018.01.12

• Control Theory and Application • Previous Articles     Next Articles

Robust controller design for compound control missile with fixed bounded convergence time

Yuhang YUN(), Shengjing TANG*(), Jie GUO(), Wei SHANG()   

  • Received:2017-03-28 Online:2018-02-26 Published:2018-02-23
  • Contact: Shengjing TANG E-mail:yunyuhangbit@163.com;tangsj@bit.edu.cn;guojie1981@bit.edu.cn;shwbit@126.com
  • About author:YUN Yuhang was born in 1993. He received his B.Eng. degree from Beijing Institute of Technology in 2014. He is currently a doctoral student in School of Aerospace Engineering, Beijing Institute of Technology. His main research interests include flight vehicle design, flight dynamics and control. E-mail: yunyuhangbit@163.com|TANG Shengjing was born in 1959. He received his Ph.D. degree from Technical University Munich in 2002. He is currently a professor in School of Aerospace Engineering, Beijing Institute of Technology. His main research interests include flight vehicle design, flight dynamics and control. E-mail: tangsj@bit.edu.cn|GUO Jie was born in 1981. He received his Ph.D. degree from Beijing Institute of Technology in 2010. He is currently a lecturer in School of Aerospace Engineering, Beijing Institute of Technology. His main research interests include flight vehicle design, flight dynamics and control. E-mail: guojie1981@bit.edu.cn|SHANG Wei was born in 1989. He received his Ph.D. degree in 2017 from Beijing Institute of Technology. His main research interests include flight vehicle design, flight dynamics, guidance and control. E-mail: shwbit@126.com
  • Supported by:
    the National Natural Science Foundation of China(11572036);This work was supported by the National Natural Science Foundation of China (11572036)

Abstract:

A robust controller for bank to turn (BTT) missiles with aerodynamic fins and reaction jet control system (RCS) is developed based on nonlinear control dynamic models comprising couplings and aerodynamic uncertainties. The fixed time convergence theory is incorporated with the sliding mode control technique to ensure that the system tracks the desired command within uniform bounded time under different initial conditions. Unlike previous terminal sliding mode approaches, the bound of settling time is independent of the initial state, which means performance metrics like convergence rate can be predicted beforehand. To reduce the burden of control design in terms of robustness, extended state observer (ESO) is introduced for uncertainty estimation with the output substituted into the controller as feedforward compensation. Cascade control structure is employed with the proposed control law and therein the compound control signal is obtained. Afterwards, control inputs for two kinds of actuators are allocated on the basis of their inherent characteristics. Finally, a number of simulations are carried out and demonstrate the effectiveness of the designed controller.

Key words: reaction jet control, compound control, fixed bounded convergence time, sliding mode control, extended state observer (ESO)