A new predictive control systems with network delays in the feedback and forward channels

Author

Fan, Yanyan ; Liu, Shuai ; Liu, Xiangjie

Author_Institution

Dept. of Autom., North China Electr. Power Univ., Beijing, China

fYear

2011

fDate

23-25 May 2011

Firstpage

912

Lastpage

916

Abstract

There are two random network transmission delays in networked control systems (NCS): forward and feedback channel delays, which degrade the control performance significantly and even make the system unstable. This paper presents a new control scheme, which is termed networked predictive control (NPC). This scheme mainly consists of the control prediction generator (CPG) and network delay compensator (NDC). The CPG provides a set of future control predictions to make the closed-loop system achieve the desired control performance and the NDC removes the effects of the network transmission delay. Different from the existing results, the function of NDC is not only the selection but also the modification. Simulation study on the inverted pendulum shows the effectiveness of the control scheme.

Keywords

closed loop systems; compensation; delays; feedback; networked control systems; nonlinear systems; pendulums; predictive control; random processes; NCS; closed loop system; control prediction generator; feedback channel delay; forward channel delay; inverted pendulum; network delay compensator; networked control system; networked predictive control; random network transmission delay; Delay; Delay effects; IP networks; Networked control systems; Observers; Predictive control; NCS; Predictive Control; Random Network Transmission Delays;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2011 Chinese

Conference_Location

Mianyang

Print_ISBN

978-1-4244-8737-0

Type

conf

DOI

10.1109/CCDC.2011.5968313

Filename

5968313