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This study develops a robust modeling and stabilization framework for an interconnected lake-aquifer system in the field of hydrology. The conventional lake-aquifer dynamics are transformed into a multi-input multioutput linear time-invariant model with a bounded uncertainty. The robust performance of the system is obtained through an H-infinity controller to address a bounded model uncertainty, satisfactory...
DC-DC boost converter in PWM switch mode is attractive for high power white LED constant current driver. The occurrence of uncertainty and coil magnetic saturation in DC-DC power converters makes their analysis and control difficult. A fuzzy logic controller (FLC) is then utilized to ensure current regulation over a wide range of parameters, which is perceived as an optimization problem. A robust...
In this paper, we consider a robust H/sub 2/ control problem for two-degree of freedom (2DOF) control systems with structured uncertainties. We show that it can be reduced to a scaled H/sub /spl infin// synthesis problem with one additional linear matrix inequality (LMI) condition. Particularly it can be reduced to an LMI optimization problem if the uncertainty is unstructured. As a result, we can...
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