scholarly journals Improved Delay-Dependent Stability Conditions for MIMO Networked Control Systems with Nonlinear Perturbations

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Jiuwen Cao
Keyword(s):  
Control Systems ◽  
Stability Condition ◽  
Networked Control Systems ◽  
Network Control ◽  
Nonlinear Perturbations ◽  
Neutral Operator ◽  
Network Control Systems ◽  
The Stability ◽  
Delay Dependent ◽  
Delay Dependent Stability

This paper provides improved time delay-dependent stability criteria for multi-input and multi-output (MIMO) network control systems (NCSs) with nonlinear perturbations. Without the stability assumption on the neutral operator after the descriptor approach, the new proposed stability theory is less conservative than the existing stability condition. Theoretical proof is given in this paper to demonstrate the effectiveness of the proposed stability condition.

Stability of Discrete-Time Network Control Systems with Time-Varying Delays

2014 ◽  
Vol 971-973 ◽  
pp. 1334-1337
Author(s):  
Hong Zhao
Keyword(s):  
Control Systems ◽  
Discrete Time ◽  
Networked Control Systems ◽  
Network Control ◽  
Stability Conditions ◽  
Time Varying ◽  
Weighting Matrix ◽  
Network Control Systems ◽  
Delay Dependent ◽  
Delay Dependent Stability

This paper proposes delay-dependent stability conditions of discrete-time networked control systems (NCSs) with unknown, time-varying and bounded delays using Lyapunov-Krasovskii functional and the improved free-weighting matrix approach. Moreover, the conditions are extended to the NCSs with time-varying structured uncertainties.

Research to the Model Design of Real Platform Based on the Simulating Network

2014 ◽  
Vol 989-994 ◽  
pp. 3359-3362
Author(s):  
Guan Qun Liu
Keyword(s):  
Control Systems ◽  
Networked Control Systems ◽  
Network Control ◽  
Networked Control ◽  
Control Algorithms ◽  
Simulation Platform ◽  
Model Design ◽  
Analysis And Design ◽  
Network Control Systems ◽  
Good Environment

One of the research works of network control systems is the effect of network upon control systems. A simulation platform of networked control systems is designed for this purpose. Matlab is used to build models of real systems. Communication between controller and process is fulfilled with Winsock. The simulation platform supports many control algorithms and gives good environment for the analysis and gives good environment for the analysis and design of networked control systems.

scholarly journals Frequency Transmission Control of Local Networked Control Systems Approach

2012 ◽  
Vol 10 (4) ◽  
Author(s):  
O. Esquivel-Flores ◽  
H. Benítez-Pérez
Keyword(s):  
Control Systems ◽  
Systems Approach ◽  
Networked Control Systems ◽  
Network Control ◽  
Control Performance ◽  
Design Strategies ◽  
Transmission Frequency ◽  
Network Control Systems ◽  
On Line ◽  
Linear Subsystem

The use of Network Control Systems has been successful in the industry and therefore has opened several lines of research. Control systems over a communication network include two important considerations, control and scheduling. Co-design strategies are focused on maintaining adequate control performance and maximize the level of service. Network scheduling is the main objective to resolve because through a balanced data load is possible to maintain control performance in a desired level. This article reviews a scheduling strategy based on frequency transition modeled as a linear subsystem, this control reconfigure on line the sensors’ periods. The case of study is the control of a prototype helicopter and by numerical simulations it shows the effect of changing the transmission frequency.

Application of GPC Algorithm Based on Network Delay

2012 ◽  
Vol 546-547 ◽  
pp. 972-976
Author(s):  
Zhen Feng ◽  
Jia Liu ◽  
Jing Jing Xiong
Keyword(s):  
Control Systems ◽  
Predictive Control ◽  
Networked Control Systems ◽  
Network Control ◽  
Networked Control ◽  
Effective Characteristics ◽  
Feedback Channel ◽  
Network Delay ◽  
The Stability ◽  
Forward Channel

Aiming at the problem of the network delay, this paper presents a kind of application of generalized predictive control algorithm in networked control systems. The algorithm applys future control signal predicted by MPC (model predictive control) to compensating for the delay or interruption in forward channel, and the delay in feedback channel with a predictor at the same time. The paper describes the control characteristic and discusses the stability of network control system, and verificates the algorithm's feasible and effective characteristics in networked control systems through the simulation.

Robust Stability of Uncertain Switched Delay Systems with Nonlinear Perturbations

2011 ◽  
Vol 228-229 ◽  
pp. 782-788
Author(s):  
Chang Cheng Xiang ◽  
Xiu Liu ◽  
Xiu Yong Ding
Keyword(s):  
Robust Stability ◽  
Delay Differential Equations ◽  
Stability Problem ◽  
Delay Systems ◽  
Nonlinear Perturbations ◽  
Linear Delay ◽  
The Stability ◽  
Delay Differential ◽  
Delay Dependent ◽  
Delay Dependent Stability

This paper focuses on the stability problem of a class of uncertain switched delay systems with nonlinear perturbations. Applying multiple functional technique, we establish a delay dependent stability condition via designing appropriate switching rule. It should emphasize that this result is a standard extension of linear delay differential equations. Meanwhile, this result is presented by LMIs and thus solved easily.

scholarly journals BIBO Stabilization of Discrete-Time Stochastic Control Systems with Mixed Delays and Nonlinear Perturbations

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Xia Zhou ◽  
Yong Ren ◽  
Shouming Zhong
Keyword(s):  
Control Systems ◽  
Stochastic Control ◽  
Discrete Time ◽  
Linear Matrix ◽  
Mixed Delays ◽  
Nonlinear Perturbations ◽  
Matrix Inequalities ◽  
Delay Dependent ◽  
Bounded Input ◽  
Delay Dependent Stability

The problem of bounded-input bounded-output (BIBO) stabilization in mean square for a class of discrete-time stochastic control systems with mixed time-varying delays and nonlinear perturbations is investigated. Some novel delay-dependent stability conditions for the previously mentioned system are established by constructing a novel Lyapunov-Krasovskii function. These conditions are expressed in the forms of linear matrix inequalities (LMIs), whose feasibility can be easily checked by using MATLAB LMI Toolbox. Finally, a numerical example is given to illustrate the validity of the obtained results.

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