Abstract
This paper discusses robustness on model error of time delayed control systems with communication disturbance observer (CDOB). A feature of the time delay compensation method based on the concept of network disturbance (ND) and CDOB is that the method can be utilized without delay time model (predictive control methods like Smith predictor usually need delay time model). Therefore the method can effectively compensate time delay effect even in the case with time-varying delay. However the method needs a model of controlled system for implementation. Then the robustness on model error of controlled system model is a very important issue for development of the time delay compensation method. In this paper, the robustness on model error is discussed from the perspective of robust stability and steady-state characteristic. At first, robust stability problem is analyzed comparing to that of Smith predictor. Then steady-state characteristic is also studied in the same manner. The validity of analytical results on both robust stability and steady-state characteristics are verified by experimental results.
| Original language | English |
|---|---|
| Journal | IEEJ Transactions on Industry Applications |
| Volume | 128 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2008 |
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Keywords
- Communication disturbance observer (CDOB)
- Model error
- Network disturbance (ND)
- Robust stability
- Steady-state characteristic
- Time delay
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Industrial and Manufacturing Engineering
Cite this
Robustness on model error of time delayed control systems with communication disturbance observer - Verification on an example constructed by double integration controlled object and PD controller. / Natori, Kenji; Oboe, Roberto; Ohnishi, Kouhei.
In: IEEJ Transactions on Industry Applications, Vol. 128, No. 6, 2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Robustness on model error of time delayed control systems with communication disturbance observer - Verification on an example constructed by double integration controlled object and PD controller
AU - Natori, Kenji
AU - Oboe, Roberto
AU - Ohnishi, Kouhei
PY - 2008
Y1 - 2008
N2 - This paper discusses robustness on model error of time delayed control systems with communication disturbance observer (CDOB). A feature of the time delay compensation method based on the concept of network disturbance (ND) and CDOB is that the method can be utilized without delay time model (predictive control methods like Smith predictor usually need delay time model). Therefore the method can effectively compensate time delay effect even in the case with time-varying delay. However the method needs a model of controlled system for implementation. Then the robustness on model error of controlled system model is a very important issue for development of the time delay compensation method. In this paper, the robustness on model error is discussed from the perspective of robust stability and steady-state characteristic. At first, robust stability problem is analyzed comparing to that of Smith predictor. Then steady-state characteristic is also studied in the same manner. The validity of analytical results on both robust stability and steady-state characteristics are verified by experimental results.
AB - This paper discusses robustness on model error of time delayed control systems with communication disturbance observer (CDOB). A feature of the time delay compensation method based on the concept of network disturbance (ND) and CDOB is that the method can be utilized without delay time model (predictive control methods like Smith predictor usually need delay time model). Therefore the method can effectively compensate time delay effect even in the case with time-varying delay. However the method needs a model of controlled system for implementation. Then the robustness on model error of controlled system model is a very important issue for development of the time delay compensation method. In this paper, the robustness on model error is discussed from the perspective of robust stability and steady-state characteristic. At first, robust stability problem is analyzed comparing to that of Smith predictor. Then steady-state characteristic is also studied in the same manner. The validity of analytical results on both robust stability and steady-state characteristics are verified by experimental results.
KW - Communication disturbance observer (CDOB)
KW - Model error
KW - Network disturbance (ND)
KW - Robust stability
KW - Steady-state characteristic
KW - Time delay
UR - http://www.scopus.com/inward/record.url?scp=72549114820&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=72549114820&partnerID=8YFLogxK
U2 - 10.1541/ieejias.128.709
DO - 10.1541/ieejias.128.709
M3 - Article
AN - SCOPUS:72549114820
VL - 128
JO - IEEJ Transactions on Industry Applications
JF - IEEJ Transactions on Industry Applications
SN - 0913-6339
IS - 6
ER -