Combined Constrained Robust Least Squares Approach and Block-Pulse Functions Technique for Tracking Control Synthesis of Uncertain Bilinear Systems with Multiple Time-Delayed States under Bounded Input Control. (24th December 2020)

• Record Type: Journal Article
• Authors: Iben Warrad, Bassem; Bouafoura, Mohamed Karim; Benhadj Braiek, Naceur
• Other Names: Salido Miguel A. Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2020(2020)
• Publication Date: 2020-12-24
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2020/7186928
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : The present study tackles the tracking control problem for unstructured uncertain bilinear systems with multiple time-delayed states subject to control input constraints. First, a new method is introduced to design memory state feedback controllers with compensator gain based on the use of operational properties of block-pulse functions basis. The proposed technique permits transformation of the posed control problem into a constrained and robust optimization problem. The constrained robust least squares approach is then used for determination of the control gains. Second, new sufficient conditions are proposed for the practical stability analysis of the closed-loop system, where a domain of attraction is estimated. A real-world example, the headbox control of a paper machine, demonstrates the efficiency of the proposed method.