Stability Analysis and Practical Design Procedure of Time Delayed Control Systems With Communication Disturbance Observer

In a research field of network-based control systems (NBCSs), the time delay problem is one of the most significant issues. Efficient stabilization methods of time delayed control systems enable NBCSs to be flexibly applied to many kinds of situations. A novel time delay compensation method based on...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industrial informatics 2008-08, Vol.4 (3), p.185-197
Main Authors: Natori, K., Oboe, R., Ohnishi, K.
Format: Article
Language:English
Subjects:
Communication disturbance observer (CDOB)
Communication system control
Compensation
Control systems
Delay effects
Delay systems
Design engineering
Design methodology
Job shop scheduling
Mathematical models
Neodymium
network disturbance (ND)
network-based control systems (NBCSs)
Networks
practical design procedure
Sliding mode control
Smith predictors
Stability
Stability analysis
Studies
Time delay
Time measurement
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In a research field of network-based control systems (NBCSs), the time delay problem is one of the most significant issues. Efficient stabilization methods of time delayed control systems enable NBCSs to be flexibly applied to many kinds of situations. A novel time delay compensation method based on the concept of network disturbance (ND) and communication disturbance observer (CDOB) has been proposed. The compensation method has the same effectiveness as that of the Smith predictor. In addition, since the method is simple and does not need time delay model or time delay measurement, it can be easily implemented to various applications. However, the design method has not been concerned so far. This paper therefore presents stability analysis and studies a practical design procedure of the time delayed control systems with CDOB. At first, the concept of ND is introduced and the validity of the time delay compensation method is described. Then an analysis about the effects of parameters in control systems on stability is conducted. Characteristics of the effects of parameters on stability come out. Then we study a practical design procedure of the time delayed control systems. The validity of the design procedure is validated by experimental results. In the experiment, we also verify the performance of the system in the case of time-varying delay. Finally, comparative study of the method to the Smith predictor is presented.
ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2008.2002705