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http://dx.doi.org/10.5302/J.ICROS.2004.10.7.583

Compensator Design for Linear System with Random Delay  

김선중 (한양대학교 전자전기제어계측공학과)
송택렬 (한양대학교 전자컴퓨터공학부)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.10, no.7, 2004 , pp. 583-589 More about this Journal
Abstract
Modem control systems often use a communication network to send measurement and control signals between nodes. Communication delays can be time varying. The length of the time delays is often hard to predict and modeled as being random. This paper proposes a combined controller used to compensate network time delay by estimating the delay with the interacting multiple model (IMM). The network delay is modeled as a Markov chain and 3 modes representing heavy, medium, and low network loads are used in the IMM. The proposed method is applied to an optimal control system with double integrators and the results are compared with the existing control methods.
Keywords
random delay; combined controller;
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