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Robust H∞ nonlinear control via measurement feedback

✍ Scribed by M. Shergei; U. Shaked

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
276 KB
Volume
7
Category
Article
ISSN
1049-8923

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✦ Synopsis

This paper deals with the problem of finite-time-horizon robust H control via measurement feedback, for affine nonlinear systems with nonlinear time-varying parameter uncertainty. The problem addressed is the design of a control law, which processes the measured output and guarantees a prescribed level of closed-loop disturbance attenuation. Conditions for the existence of such a controller are obtained by solving an auxiliary control problem for a related system which is obtained from the original one by converting the parameter uncertainty into exogenous bounded energy signals. This approach allows us to apply the recently developed H nonlinear control techniques to solve the robust control problem. The problem is investigated in both the continuous-and discrete-time cases. The results are demonstrated by a simple example.

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