A new discrete-time sliding-mode control with time-varying gain and neural identification |
| |
Authors: | J De Jesús Rubio |
| |
Affiliation: | Departamento de Control Automatico , CINVESTAV-IPN , A.P. 14-740, Av.IPN 2508, México D.F., 07360, México |
| |
Abstract: | In this paper, we present a new sliding mode controller for a class of unknown non-linear discrete-time systems. We make the following two modifications. (1) The neural identifier which is used to estimate the unknown non-linear system uses the projection and the dead-zone approaches to assure non-singularity in the controller and stability of identification error. (2) We propose a new sliding mode controller with time-varying gain to reduce chattering. A necessary condition is given to make the switching function decrease exponentially. We prove that the closed-loop system with the sliding mode controller and the neural identifier is stable. |
| |
Keywords: | |
|
|