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 12 of 12 for “"Decoupled Control"”.
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Application of Multivariable Control Theory to Improve Steering and Propulsion Control of a Containership
… considerations, the ship propulsion and steering control problems are considered for the SL-7 containership. Extending previous work by Reid in the area of minimum-added-resistance steering control, modern multivariable control methods are applied to the steady-state coursekeeping control problem. …
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Advanced control techniques for modern inertia based inverters
… a vital role. The concept of virtual inertia control scheme is proposed to make the behavior of grid connected inverters more similar to the synchronous generators, by mimicking the mechanical behavior of a synchronous generator. Conventional control techniques lack to perform optimally in …
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Control of Grid-Connected Converters using Deep Learning
… resources (IBRs) within the power system, the control of grid-connected converters (GCC) has become pertinent due to the fact they interface IBRs to the grid. The conventional method of control for grid-connected converters (GCCs) such as the voltage-sourced converter (VSC) is through a …
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Advanced control architectures for grid connected and standalone converter systems
<p>"This dissertation proposes new control algorithms dedicated towards improving the reliability, computational burden and stability in grid-connected and stand-alone based power electronic converter systems applicable for ac microgrids.</p><p>Two voltage sensorless control architectures, one for …
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Polymeric materials for neovascularization
… hydrogel system with systematically controllable electrical and mechanical properties (Chapter 5), and an alginate-g-pyrrole hydrogel that enables the decoupled control of electrical conductivity and mechanical rigidity and is use to electrically stimulate cellular endogenous …
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Visualization of energy transfer among redox active polymeric colloids via in-situ fluorescence microscopy
… due to their scalability, high-efficiency and decoupled control of energy and power. To prevent the crossover of energy carriers between anolyte and catholyte compartments of the flow battery, as one example, the redox active ethyl viologen agent has been covalently bound within crosslinked …
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Engineering scaffold and soluble cues for cell-instruction
… we started off by separately examining the control of microenvironmental cues and the regulation of soluble factor cues both in vitro and in vivo. In the earlier parts of the research, we modified the microenvironmental scaffold cues of collagen-based scaffolds through various approaches. …
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Design, Simulation, and Experimental Validation of a Novel High-Speed Omnidirectional Underwater Propulsion Mechanism
… rotor is individually powered to allow for roll control via relative motor effort and attached to a swashplate mechanism, providing quick and powerful manipulation of fluid-flow direction in the hull's coordinate frame without the need to track rotor position. The omnidirectional mechanism …
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A novel concept of series connected multi-phase, multi-motor drive systems
… machine tools, which require high performance control of more than one electric motor. These multi-motor drives are generally available in two configurations. The first one consists of a number of three-phase voltage source inverters (VSI) connected in parallel to a common DC link, each …
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System Frequency Support of Permanent Magnet Synchronous Generator-Based Wind Power Plant
… system. Additionally, the deloaded operation and decoupled control of active and reactive power make it possible for PMSG-WTG to provide a fast frequency regulation through full-power converter.</p> <p>First of all, a comprehensive and in-depth survey is conducted to analyze the motivations for …
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Modeling, control and stability analysis of VSC-HVDC links embedded in a weak multi-machine AC system.
… principle design methodology to achieve robust controllers for VSCs including inner current controller, outer power and voltage controllers as well as the supplementary damping controllers for enhancing the small-disturbance rotor-angle stability of a weak multi-machine power system with …
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Design of multi-functional hydrogel for cell therapies
… hydrogel system by co-polymerization allowed the control of hydrogel stiffness without affecting permeability; (3) The hydrogel was modified with cell adhesion proteins independent of other hydrogel properties using an amine-reactive polyaspartamide linker enabling single-step protein conjugation. …