Special decentralized control problems in discrete-time interconnected systems composed of two subsystems

2007 ◽  
Vol 56 (3) ◽  
pp. 206-214 ◽  
Author(s):  
Zhisheng Duan ◽  
Jinzhi Wang ◽  
Lin Huang
Keyword(s):  
Decentralized Control ◽  
Discrete Time ◽  
Interconnected Systems ◽  
Control Problems

Dynamic output feedback control for nonlinear large-scale interconnected systems

2020 ◽  
Vol 39 (4) ◽  
pp. 801-821
Author(s):  
Ezzeddine Touti ◽  
Ali Sghaier Tlili ◽  
Muhannad Almutiry
Keyword(s):  
Decentralized Control ◽  
Output Feedback ◽  
Large Scale ◽  
Optimization Problem ◽  
Lyapunov Theory ◽  
Interconnected Systems ◽  
Dynamic Output Feedback ◽  
Content Type ◽  
Dynamic Output ◽  
Control Scheme

Purpose This paper aims to focus on the design of a decentralized observation and control method for a class of large-scale systems characterized by nonlinear interconnected functions that are assumed to be uncertain but quadratically bounded. Design/methodology/approach Sufficient conditions, under which the designed control scheme can achieve the asymptotic stabilization of the augmented system, are developed within the Lyapunov theory in the framework of linear matrix inequalities (LMIs). Findings The derived LMIs are formulated under the form of an optimization problem whose resolution allows the concurrent computation of the decentralized control and observation gains and the maximization of the nonlinearity coverage tolerated by the system without becoming unstable. The reliable performances of the designed control scheme, compared to a distinguished decentralized guaranteed cost control strategy issued from the literature, are demonstrated by numerical simulations on an extensive application of a three-generator infinite bus power system. Originality/value The developed optimization problem subject to LMI constraints is efficiently solved by a one-step procedure to analyze the asymptotic stability and to synthesize all the control and observation parameters. Therefore, such a procedure enables to cope with the conservatism and suboptimal solutions procreated by optimization problems based on iterative algorithms with multi-step procedures usually used in the problem of dynamic output feedback decentralized control of nonlinear interconnected systems.

Extended discrete-time transfer matrix approach to modeling and decentralized control of lattice-based structures

2016 ◽  
Vol 23 (10) ◽  
pp. 1256-1272 ◽  
Author(s):  
Nick Cramer ◽  
Sean Shan-Min Swei ◽  
Kenneth C. Cheung ◽  
Mircea Teodorescu
Keyword(s):  
Transfer Matrix ◽  
Decentralized Control ◽  
Discrete Time ◽  
Matrix Approach ◽  
Time Transfer ◽  
Transfer Matrix Approach
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