Abstract
In this paper, we study decentralized H∞ feedback control systems with quantized signals in local input-output (control) channels. We first assume that a decentralized output feedback controller has been designed for a multi-channel continuous-time system so that the closed-loop system is Hurwitz stable and a desired ifoo disturbance attenuation level is achieved. However, since the local measurement outputs are quantized by a general quantizer before they are passed to the controller, the system's performance is not guaranteed. For this reason, we propose a local-output-dependent strategy for updating the quantizers' parameters, so that the closed-loop system is asymptotically stable and achieves the same H∞ disturbance attenuation level. We also extend the discussion and the result to the case of multi-channel discrete-time .H∞ feedback control systems.
| Original language | English |
|---|---|
| Pages (from-to) | 137-150 |
| Number of pages | 14 |
| Journal | Kybernetika |
| Volume | 45 |
| Issue number | 1 |
| Publication status | Published - 2009 |
| Externally published | Yes |
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Keywords
- Decentralized H∞ feedback control system
- Matrix inequality
- Output feedback
- Quantization
- Quantizer
ASJC Scopus subject areas
- Software
- Artificial Intelligence
- Control and Systems Engineering
- Information Systems
- Theoretical Computer Science
- Electrical and Electronic Engineering
Cite this
A study on decentralized H∞ feedback control systems with local quantizers. / Zhai, Guisheng; Ning, Chen; Weihua, Gui.
In: Kybernetika, Vol. 45, No. 1, 2009, p. 137-150.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A study on decentralized H∞ feedback control systems with local quantizers
AU - Zhai, Guisheng
AU - Ning, Chen
AU - Weihua, Gui
PY - 2009
Y1 - 2009
N2 - In this paper, we study decentralized H∞ feedback control systems with quantized signals in local input-output (control) channels. We first assume that a decentralized output feedback controller has been designed for a multi-channel continuous-time system so that the closed-loop system is Hurwitz stable and a desired ifoo disturbance attenuation level is achieved. However, since the local measurement outputs are quantized by a general quantizer before they are passed to the controller, the system's performance is not guaranteed. For this reason, we propose a local-output-dependent strategy for updating the quantizers' parameters, so that the closed-loop system is asymptotically stable and achieves the same H∞ disturbance attenuation level. We also extend the discussion and the result to the case of multi-channel discrete-time .H∞ feedback control systems.
AB - In this paper, we study decentralized H∞ feedback control systems with quantized signals in local input-output (control) channels. We first assume that a decentralized output feedback controller has been designed for a multi-channel continuous-time system so that the closed-loop system is Hurwitz stable and a desired ifoo disturbance attenuation level is achieved. However, since the local measurement outputs are quantized by a general quantizer before they are passed to the controller, the system's performance is not guaranteed. For this reason, we propose a local-output-dependent strategy for updating the quantizers' parameters, so that the closed-loop system is asymptotically stable and achieves the same H∞ disturbance attenuation level. We also extend the discussion and the result to the case of multi-channel discrete-time .H∞ feedback control systems.
KW - Decentralized H∞ feedback control system
KW - Matrix inequality
KW - Output feedback
KW - Quantization
KW - Quantizer
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UR - http://www.scopus.com/inward/citedby.url?scp=66349115597&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:66349115597
VL - 45
SP - 137
EP - 150
JO - Kybernetika
JF - Kybernetika
SN - 0023-5954
IS - 1
ER -