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An adaptive PID controller for network based control systems

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2 Author(s)
Loden, N.B. ; Electr. & Comput. Eng. Dept., Auburn Univ., AL, USA ; Hung, J.Y.

Presented here is an algorithm for retuning controller parameters to mitigate the effect of time delay in a network-based control system. An examination of the effects of time delay on network-based control systems is presented. The proposed methodology measures the present time delay in a control system to intelligently update the controller parameters to maintain nominal system performance. A comparison of systems with modified and unmodified controller parameters is given. A proportional-integral-derivative (PID) controller is used in the two examples (one short time delay and one long time delay).

Published in:

Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE

Date of Conference:

6-10 Nov. 2005