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DOI:10.1007/s11768-010-9185-9 |
Received:September 07, 2009Revised:September 07, 2009 |
基金项目:the Japan Ministry of Education, Sciences and Culture under Grant-in-Aid for Scientific Research (C)(No.21560471) |
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Quantizer design for interconnected feedback control systems |
Guisheng ZHAI,Ning CHEN,Weihua GUI |
(Osaka Prefecture University;Central South University) |
Abstract: |
In this paper, we consider the design of interconnected H-infinity feedback control systems with quantized
signals. We assume that a decentralized static output feedback has been designed for an interconnected continuous-time
LTI system so that the closed-loop system is stable and a desired H-infinity disturbance attenuation level is achieved, and
that the subsystems’ measurement outputs are quantized before they are passed to the local controller. We propose a localoutput-
dependent strategy for updating the quantizers’ parameters, so that the overall closed-loop system is asymptotically
stable and achieves the same H-infinity disturbance attenuation level. Both the pre-designed controllers and the quantizers’
parameters are constructed in a decentralized manner, depending on local information. |
Key words: Interconnected continuous-time LTI system Decentralized H-infinity control Quantizer Quantization Matrix inequality Static output feedback |