| Summary: | 碩士 === 大同大學 === 電機工程學系(所) === 93 === In this thesis, the control design problem of stabilizing an uncertain time-delay system with nonlinear input.
The uncertainties are time-varying and bounded. The nonlinear input is a class of nonlinear continuous function with sector bounded. Because dead-zone characteristics are naturally originate from actuators in the system realization. Consequently, the nonlinear input in this thesis is containing not only sector bounded nonlinearities but also dead-zone. Base on Lyapunove stability theorem, we design a sliding mode controller with integral function to guarantee the system asymptotically stable. In addition, the use of adaptive technique is to estimate the unknown upper bound of perturbations.
When the state variables of the control system are not completely measurable, a robust state observer is designed to estimate the system states.
Finally, some examples are given to illustrate the feasibility of the proposed control methodology.
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