Disturbance estimator based dynamic compensator design for fractional order fuzzy control systems
نویسندگان
1 Department of Mathematics, Anna University Regional Campus, Coimbatore 641046, India
2 Department of Mathematics, Anna University Regional Campus, Coimbatore 641046, India
3 Department of Applied Mathematics, Bharathiar University, Coimbatore 641046, India
4 Department of Mathematics, Anna University Regional Campus, Coimbatore 641046, India
5 Department of Mathematics, Anna University Regional Campus, Coimbatore 641046, India
doi
10.22111/ijfs.2021.6178چکیده
The robust stabilization problem for singular fractional order time delay T-S fuzzy systems with nonlinearities and unknown external disturbances is addressed in this paper. An equivalent-input-disturbance (EID) estimator is used to estimate the impact of external disturbances and nonlinearities on the system output. Based on this EID approach, a dynamic compensator is designed to solve the stabilization problem of the considered system. Moreover, by considering a relevant Lyapunov-Krasovskii functional candidate and by using Lyapunov technique, the stability conditions in terms of LMIs are acquired for the considered closed-loop system. At last, to validate the effectiveness of the proposed result, two numerical examples are provided.
