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A Simplified GPC Algorithm of Networked Control Systems

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2 Author(s)
Kunjie Li ; Lab of Complex Systems and Intelligence Science, Institute of Automation, Chinese Academy of Sciences, Beijing, 1100080, China, PhD candidate of the Graduate University of the Chinese Academy Sciences, Beijing, 100049, China, e-mail: ; G. P. Liu

This paper is concerned with a simplified GPC algorithm of networked control systems. Networked predictive control is recently used to cope with the random and uncertain time delay induced by network transmission. Instead of predicting a set of control sequences at one sampling period in former networked predictive control systems, a simplified generalized predictive control (GPC) algorithm is presented through adding a simulated GPC controller which starts to run earlier. The outputs of simulated GPC controller are sent to a buffer then multiplexed with that of practical GPC controller together. Thus only two computation step of GPC controller are required to produce the total control sequences. Moreover, traditional GPC controllers can be used to build the networked predictive control systems without any change except the delay compensator added. The off-line and real-time simulations show the feasibility and effectiveness of the proposed algorithm.

Published in:

2007 IEEE International Conference on Networking, Sensing and Control

Date of Conference:

15-17 April 2007