Open AccessFractional Sliding Mode Control for Nonlinear Aerospace Systems
Author(s) -
Shiqi Zheng,
Bingyun Liang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/831/1/012011
Subject(s) - nonlinear system , control theory (sociology) , sliding mode control , terminal sliding mode , fractional calculus , aerospace , convergence (economics) , integer (computer science) , mode (computer interface) , order (exchange) , computer science , mathematics , control (management) , engineering , physics , finance , quantum mechanics , artificial intelligence , economic growth , economics , programming language , aerospace engineering , operating system
This paper focuses on the study of fractional order terminal sliding mode control for nonlinear aerospace systems. Firstly, a novel fractional order integral terminal sliding mode control (FO-I-TSMC) method is proposed for the control of first order nonlinear system. FO-I-TSMC has three attractive advantages: i) Non-singular control law; ii) Elimination of the reaching phase; iii) Calculable finite convergence time. Furthermore, theory analysis is presented to reveal the potential advantages of the FO-I-TSMC method over its integer order counterparts. Secondly, a novel fractional order derivative integral-TSMC (FO-DI-TSMC) method is presented to deal with second order nonlinear system. Finally, FO-DI-TSMC is extended to deal with a general class of higher order control system. Simulation results are given to verify the effectiveness of the proposed methods.