학술논문

Output-Feedback Multivariable Global Variable Gain Super-Twisting Algorithm
Document Type
Periodical
Source
IEEE Transactions on Automatic Control IEEE Trans. Automat. Contr. Automatic Control, IEEE Transactions on. 62(6):2999-3005 Jun, 2017
Subject
Signal Processing and Analysis
Gain
Algorithm design and analysis
Stability analysis
Upper bound
Control systems
Uncertain systems
MIMO
Global exact tracking
higher-order sliding modes
multivariable control
output-feedback
super-twisting algorithm
uncertain nonlinear systems
Language
ISSN
0018-9286
1558-2523
2334-3303
Abstract
A novel output-feedback super-twisting algorithm design is proposed for uncertain multivariable plants. In order to allow global finite-time exact tracking in the presence of a rather general class of matched nonlinear disturbances which may depend on measured and/or unmeasured states, the algorithm is designed with variable gains. This represents a significant extension of a recently proposed nondecoupled multivariable super-twisting algorithm, based on state-feedback with fixed gains, to the case of output-feedback with variable gains.