Configurations and modelling of networked feedforward-feedback control systems

• Published in: 2012 10th World Congress on Intelligent Control and Automation (WCICA pp. 909 - 913
• Main Authors: Congzhi Huang, Yan Bai
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.07.2012
• Subjects: Actuators; Adaptive control; configuration; Data models; data packet dropout; Delay; modelling; network-induced delay; Networked control systems; Networked feedforward-feedback control system; Process control
• ISBN: 9781467313971; 1467313971
• DOI: 10.1109/WCICA.2012.6358008

The concept of networked feedforward-feedback control system is proposed based on practical industrial process control. Its configurations as well as the development of its uniform model are investigated in detail. Feedforward-feedback control system, wherein the control loops are closed via real-time networks, is called networked feedforward-feedback control system(NFCS for short). Three different configurations of NFCSs are proposed based on industrial process control and the locations of networks are explicitly pointed out, respectively. The uniform closed-loop system models for the three different configurations of NFCSs are developed via the augmented vector method, taking into account the network-induced delays and data packet dropout simultaneously.