Title :
Design and implementation of a networked controller based on state prediction
Author :
Zhu, Zhengjun ; Yao, Fenxi ; Zhang, Baihai ; Senchun Chai
Author_Institution :
Sch. of Autom., Beijing Inst. of Technol., Beijing, China
Abstract :
Aiming at the problem of random delay in close-loop networked control systems, this study designed a LQ control strategy based on state prediction. Time-variant transmission delays can be transformed into fixed delays by adding data buffers to the controller and the actuator. Accordingly, time-variant stochastic systems can be transformed into deterministic systems. In this study, controllability of deterministic networked control systems is systematically analyzed, and a LQ control scheme based on state prediction is studied. Also the validity of the algorithm for the controller is demonstrated by practical experiments.
Keywords :
actuators; closed loop systems; control system synthesis; controllability; delays; linear quadratic control; predictive control; stochastic systems; LQ control scheme; LQ control strategy; actuator; close-loop networked control systems; controllability; data buffers; deterministic networked control systems; deterministic systems; fixed delays; networked controller; random delay; state prediction; systematically analyzed; time-variant stochastic systems; time-variant transmission delays; Actuators; Delay; Equations; Mathematical model; Networked control systems; Prediction algorithms; networked control systems; random delay; state prediction;
Conference_Titel :
Intelligent Control and Information Processing (ICICIP), 2011 2nd International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-0813-8
DOI :
10.1109/ICICIP.2011.6008320
