Robust output feedback sliding mode control for uncertain discrete time systems

被引:18
作者
Rahmani, Behrooz [1 ]
机构
[1] Univ Yasuj, Dept Mech Engn, Control Res Lab, Yasuj 75914353, Iran
关键词
Robust sliding mode control; Mismatched uncertainty; Kalman filter; Output tracking and model following; Linear matrix inequalities; VARIABLE SELECTIVE CONTROL; NETWORKED CONTROL-SYSTEMS; TRACKING; DESIGN; DISCRETIZATION; STABILITY;
D O I
10.1016/j.nahs.2016.11.004
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper proposes a robust output feedback controller for a class of uncertain discrete time, multi-input multi-output, linear, systems. This method, which is based on the combination of discrete-time sliding mode control (DTSMC) and Kalman estimator, ensures the stability, robustness and an output tracking against the modeling uncertainties at large sampling periods. For this purpose, an appropriate structure is considered for sliding surface and the Lyapunov theory for the mismatched uncertain system is then used to design its parameter. This problem leads to solve a set of linear matrix inequalities. A new method is then proposed to reach the quasi-sliding mode and stay thereafter. Simulation studies show the effectiveness of the proposed method in the presence of parameter uncertainties and external disturbances at large sampling periods. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:83 / 99
页数:17
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