NDLI: Robust Time Delayed Control Systems with Communication Disturbance Observer

Content Provider	IEEE Xplore Digital Library
Author	Natori, K. Oboe, R. Ohnishi, K.
Copyright Year	2007
Description	Author affiliation: Keio Univ., Yokohama (Natori, K.)
Abstract	A time delay compensation method based on the concept of network disturbance and communication disturbance observer has been proposed so far. The method has the same effectiveness as that of Smith predictor and the validity has been experimentally verified. Furthermore, the advantage of the method is that it works without delay time model. However, whereas the method has been practically applied in several situations, the robustness has never been studied so far. In this paper, we present robustness of the time delayed control systems with the time delay compensation method. Some problems caused by model uncertainty and constraint on cutoff frequency are firstly discussed. Then a time delayed control system with communication disturbance observer based on two- degree-of-freedom control structure is designed. The control system makes it possible to achieve zero steady-state error. Moreover, the transient response is designed easily by parameters of controllers. Here, the transient characteristic and the attenuation performance of model uncertainty can be designed separately. Simulation results verify the validity of the control system.
Starting Page	316
Ending Page	321
File Size	2942567
Page Count	6
File Format	PDF
ISBN	1424407834
ISSN	1553572X
DOI	10.1109/IECON.2007.4460282
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-05
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robust control Delay systems Delay effects Communication system control Control systems Uncertainty Robustness Cutoff frequency Steady-state Error correction
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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