TITLE:
H∞ Control of Uncertain Fuzzy Networked Control Systems with State Quantization
AUTHORS:
Magdi S. Mahmoud
KEYWORDS:
Networked H∞ Control; Fuzzy Systems; Discrete Time-Varying Delay; Linear Matrix Inequality (LMI)
JOURNAL NAME:
Intelligent Control and Automation,
Vol.3 No.1,
February
28,
2012
ABSTRACT: The problem of robust H∞ control for uncertain discrete-time Takagi and Sugeno (T-S) fuzzy networked control systems (NCSs) is investigated in this paper subject to state quantization. By taking into consideration network induced delays and packet dropouts, an improved model of network-based control is developed. A less conservative delay-dependent stability condition for the closed NCSs is derived by employing a fuzzy Lyapunov-Krasovskii functional. Robust H∞ fuzzy controller is constructed that guarantee asymptotic stabilization of the NCSs and expressed in LMI-based conditions. A numerical example illustrates the effectiveness of the developed technique.