Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"stabilizing controller"”.
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Robust stabilization of linear time-invariant uncertain systems via Lyapunov theory
… with the problem of synthesizing a robust stabilizing feedback controller for linear time-invariant systems with constant uncertainties that are not required to satisfy matching conditions. Only the bounds on the uncertainties are required and no statistical property of the uncertainties is …
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Approximation and Control of the Boussinesq Equations with Application to Control of Energy Efficient Building Systems
… on a bounded and connected domain. The feedback controller is obtained by solving a Linear Quadratic Regulator problem for the linearized Boussinesq equations. Applying classical results for semilinear equations where the linear term generates an analytic semigroup, we establish that this …
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Adaptive, suboptimal and nonlinear control of an aeroelastic system
… system. For the synthesis of the adaptive controller, it is assumed that only pitch angle and plunge displacement are measured. The control system consists of an input-to-state stabilizing controller and a passive identifier. The passive identifier provides estimates of parameters for …
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Studies on Stability and Stabilization of Randomly Switched Systems
… presents a study on stability analysis and stabilizing controller synthesis of randomly switched systems. These systems have two ingredients: a family of nonlinear subsystems and a random switching signal that specifies which subsystem is active at each time instant. In broad strokes, the …
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Global parameter identification and control of nonlinearly parameterized systems
… and control of NLP systems. An adaptive controller is presented for NLP systems with a triangular structure. The presence of the triangular structure together with nonlinear parameterization makes standard methods such as back-stepping, and variable structure control inapplicable. A …
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Studies in system representation and control
… in terms of closable operators. A robustly stabilizing controller stabilizes every member of the model class to which the given plant belongs. We show that if the model class is an open set in $H\sb\infty$, there is a necessary and sufficient condition for robust stability. But if the model …
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An approach for nonlinear control design via approximate dynamic programming
… proposes and studies a methodology for designing controllers for nonlinear dynamic systems. We are interested in state feedback controllers (policies) that stabilize the state in a given region around an equilibrium point while minimizing a cost functional that captures the performance of the …
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Development and Testing of a Steerable Cruciform Parachute System
… to parafoil parachutes. Next some method of stabilizing that canopy during flight must be proposed. In this case, the system heading is to be stabilized via a single actuator by asymmetric deflection of the leading edge of one canopy panel. At this stage in the development, a controller must be …
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X-ray microscope performance enhancement through control architecture change
… a sample held on the sample stage group. The controller algorithms that are used should provide the closed-loop with robust stability, large bandwidth, high resolution, disturbance rejection and noise attenuation. Conveniently, the field of scanning probe microscopes (SPMs) have already …