| Summary: | 碩士 === 逢甲大學 === 電子工程所 === 93 === Abstract
In this thesis, an observer-based direct adaptive fuzzy output tracking control scheme which is based upon a combination of the tracking theory, VSS control algorithm and fuzzy control design is developed for a class of nonlinear multiple-input multiple-output (MIMO) dynamical systems. By using the state observer to estimate the system states, it only requires the system outputs are available for measurement. Furthermore, in order to suppress the influence of external disturbance and remove fuzzy approximation, the control and VSS control are designed. Thus, the effect of the external disturbance and remove fuzzy approximation on the tracking error can be attenuated to any prescribed level and all the states and signals are bounded. The simulation results show that the system stability can be guaranteed and a good performance can be achieved by proposed design methodology.
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