Journal of Astronautics ›› 2019, Vol. 40 ›› Issue (12): 1422-1430.doi: 10.3873/j.issn.1000-1328.2019.12.005

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Composite Control for a Class of Strong Coupling/Strong Uncertainty/Strong Nonlinearity and Fast Time Varying Systems

KONG Xue, NING Guo dong, YANG Ming, WANG Song yan, CHAO Tao   

  1. 1. Control and Simulation Center, School of Astronautics, Harbin Institute of Technology, Harbin 150080, China;
    2. Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory, Beijing 100074, China;
    3. Beijing Institute of Mechanical and Electrical Engineering, Beijing 100074, China
  • Received:2018-10-23 Revised:2019-01-29 Online:2019-12-15 Published:2019-12-25

Abstract: The control problem for a class of systems, which have characteristics of strong coupling, strong uncertainty, and strong nonlinearity as well as fast time-varying, is analyzed. Based on the dynamic characteristics, a compound control strategy is presented. The composite control method consists of three core modules, namely, strong coupling and strong uncertainty module, strong nonlinearity and fast time-varying module, and intelligent scheduling module. Taking a typical vehicle with four strong characteristics as an example, the detailed design of the composite control method is given. Finally, based on the precise simulation model, considering the inconsistencies between flight and ground test, the simulation analysis is carried out. The simulation results show that the method is effective and reliable.

Key words: Strong coupling, Strong uncertainty, Strong nonlinearity, Fast time-varying, Compound control

CLC Number: