Title :
Robust Stability Analysis for Networked Control Systems
Author :
Huo, Zhihong ; Zhang, Zhixue
Author_Institution :
Coll. of Water Conservancy & Hydropower Eng., Hohai Univ., Nanjing
Abstract :
Implementing a control system over a communication network induces inevitable time delays and packet dropout that degrade performance and can even cause instability. In this paper, adjustable deadbands are explored as a solution to reduce network traffic in networked control system and we presented a new modeling method for networked control system with random time delays and communication constraints based on quasi T-S fuzzy models. The stability for the kind of networked control system is analyzed based on robust stability theory and information scheduling. Parametric expression of controller is given based on feasible solution of linear matrix inequality (LMI).
Keywords :
control engineering computing; delays; fuzzy control; fuzzy set theory; linear matrix inequalities; robust control; scheduling; stability; telecommunication traffic; adjustable deadband; communication constraint; information scheduling; linear matrix inequality; network traffic; networked control system; parametric expression; quasi Takagi-Sugeno fuzzy model; robust stability analysis; time delay; Communication networks; Communication system control; Communication system traffic control; Control system analysis; Control systems; Degradation; Delay effects; Networked control systems; Robust stability; Traffic control; Networked control systems; deadband; fuzzy; robust;
Conference_Titel :
Intelligent Information Technology Application Workshops, 2008. IITAW '08. International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3505-0
DOI :
10.1109/IITA.Workshops.2008.83
