Title |
Design of Buoyancy and Moment Controllers of a Underwater Glider Based on a T-S Fuzzy Model |
Authors |
이경학(Lee, Gyeoung Hak) ; 김도완(Kim, Do Wan) |
DOI |
https://doi.org/10.5370/KIEE.2016.65.12.2037 |
Keywords |
Takagi-Sugeno (T-S) fuzzy model ; Underwater glider ; Lyapunov stability ; Linear matrix inequalities (LMI) ; Linearization |
Abstract |
This paper presents a fuzzy-model-based design approach to the buoyancy and moment controls of a class of nonlinear underwater glider. Through the linearization and the sector nonlinearity methodologies, the underwater glider dynamics is represented by a Takagi-Sugeno (T-S) fuzzy model. Sufficient conditions are derived to guarantee the asymptotic stability of the closed-loop system in the format of linear matrix inequality (LMI). Simulation results demonstrate the effectiveness of the proposed buoyancy and moment controllers for the underwater glider. |