TY - GEN
T1 - Simple adaptive H∞ control for delayed measurements systems
AU - Ben Yamin, R.
AU - Yaesh, I.
AU - Shaked, U.
PY - 2010
Y1 - 2010
N2 - An output-feedback direct adaptive control problem is considered for a class of linear time delayed measurements systems with polytopic-type parameter uncertainties and disturbances. The objective is to make the system output follow the output of a system model and to attain guaranteed H1 performance of the proposed adaptive control scheme. The time-delay is either constant (known) or time-varying. In both cases, the problem is tackled by applying a combination of a simple direct adaptive control scheme, a Smith-predictor, and a low-pass filter. Sufficient conditions for closed-loop stability, model following performance and prescribed H∞ disturbance attenuation level of the proposed control scheme are given, in terms of bilinear matrix inequalities. Two numerical examples are given, which demonstrate the applicability of the proposed methods and the simplicity of their implementation.
AB - An output-feedback direct adaptive control problem is considered for a class of linear time delayed measurements systems with polytopic-type parameter uncertainties and disturbances. The objective is to make the system output follow the output of a system model and to attain guaranteed H1 performance of the proposed adaptive control scheme. The time-delay is either constant (known) or time-varying. In both cases, the problem is tackled by applying a combination of a simple direct adaptive control scheme, a Smith-predictor, and a low-pass filter. Sufficient conditions for closed-loop stability, model following performance and prescribed H∞ disturbance attenuation level of the proposed control scheme are given, in terms of bilinear matrix inequalities. Two numerical examples are given, which demonstrate the applicability of the proposed methods and the simplicity of their implementation.
KW - Adaptive direct control
KW - H performance
KW - Simple adaptive control
KW - Smith-predictor
KW - Time-varying delay systems
UR - http://www.scopus.com/inward/record.url?scp=78751655621&partnerID=8YFLogxK
U2 - 10.1109/SYSTOL.2010.5676080
DO - 10.1109/SYSTOL.2010.5676080
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AN - SCOPUS:78751655621
SN - 9781424481545
T3 - Conference on Control and Fault-Tolerant Systems, SysTol'10 - Final Program and Book of Abstracts
SP - 462
EP - 467
BT - Conference on Control and Fault-Tolerant Systems, SysTol'10 - Final Program and Book of Abstracts
T2 - 1st Conference on Control and Fault-Tolerant Systems, SysTol'10
Y2 - 6 October 2010 through 8 October 2010
ER -