Title
Adaptive Terminal Sliding Mode Control for Reentry Vehicle Based on Nonlinear Disturbance Observer.
Abstract
The movement of reentry vehicle is disturbed by the atmospheric environment and changes of aerodynamic parameters. In this paper, an adaptive terminal sliding mode control method based on nonlinear disturbance observers is proposed, which is used to control the attitude of the reentry vehicle. Firstly, the attitude control system is divided into an attitude angular control loop and an angular velocity control loop. Then, novel finite time convergence nonlinear disturbance observers are designed to estimate lumped disturbances. In the design of control law, the super-twist algorithm is used to make the proposed terminal sliding mode variables converge to the origin within a finite time and reduce the chattering of the controller. The estimated value of disturbance is considered in the controller to attenuate the effect of disturbances on the vehicle. Last, the algorithm proposed is applied to reentry vehicle and a good performance can be obtained. The effectiveness and superiority of the proposed algorithm is demonstrated by numerical simulations.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2948963
IEEE ACCESS
Keywords
DocType
Volume
Attitude control,Disturbance observers,Mathematical model,Sliding mode control,Vehicle dynamics,Aerodynamics,Tracking loops,Reentry vehicle,attitude control,nonlinear disturbance observer,terminal sliding mode,super twist algorithm
Journal
7
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Binghe An100.34
Bo Wang200.68
Yongji Wang360675.34
Lei Liu4365.31