Networked control for delta operator systems subject to actuator saturation

• Published in: International journal of control, automation, and systems Vol. 12; no. 6; pp. 1345 - 1351
• Main Authors: Zhao, Ling, Li, Zhiwei, Yang, Hongjiu, Liu, Zhixin
• Format: Journal Article
• Language: English
• Published: Heidelberg Institute of Control, Robotics and Systems and The Korean Institute of Electrical Engineers 01.12.2014; Springer Nature B.V
• Subjects: Actuators; Analysis; Attraction; Control; Control systems; Control theory; Controllers; Ellipsoids; Engineering; Feedback control systems; Industrial equipment; Kalman filters; Laboratories; Linear operators; Mechanical engineering; Mechatronics; Muscles; Regular Papers; Robotics; Saturation; Science; Studies; Systems stability; delta operator system; networked control system; domain of attraction; stability analysis; Actuator saturation
• ISSN: 1598-6446; 2005-4092
• DOI: 10.1007/s12555-014-0057-9

In this paper, the problems of networked control for delta operator systems with actuator saturation are considered. Ellipsoids are used to estimate the domain of attraction for the networked control systems with actuator saturation. A condition for the networked control system is derived in terms of an auxiliary feedback matrix for determining if a given ellipsoid is contractive invariant. Discussions on the networked control systems performance optimization on expansion of the domain of attraction are presented. A numerical example on one-link PMW-controlled joint driven by pneumatic muscles is given to illustrate the effectiveness of the developed techniques.