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.
Results
Showing 1 to 20 of 23 for “"Multiple Control"”.
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Design of secondary voltage and stability controls with multiple control objectives
… a Decentralized Voltage/Stability Monitoring and Control System to counteract voltage violations and the impact of disturbances/contingencies on power system voltage stability. A decentralized voltage and stability control system is designed to coordinate the controls of the local secondary …
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Application of STPA to the integration of multiple control systems : a case study and new approach
A new approach for analyzing multiple control systems within the STPA framework has been developed and demonstrated. The new approach meets the growing need of system engineers to analyze integrated control systems, that may or may not have been developed in a coordinated manner, and assess them …
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Optimized and energy-efficient cooperative platooning for autonomous vehicles
… in real time. This thesis focuses on evaluating multiple control strategies for energy efficiency under controlled scenarios. Three controllers were evaluated: Adaptive Cruise Control (ACC), Cooperative Adaptive Cruise Control(CACC), and proposed energy-aware controller. The energy-aware …
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Neural Adaptation and the Effect of Interelectrode Spacing on Epidural Electrocorticography for Brain-Computer Interfaces
… to perform a one-dimensional BCI task. The BCI control scheme was independent of any prior screening for task-related activity. All three monkeys successfully learned to perform the task with multiple control configurations and each time gained significant performance in 10 days or less. …
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Designing a Simple Indirect Vector Controlled Drive System in Simulink
… Such performance requirements require motor control systems that must be capable of overcoming changes within the drive system: primarily motor parameter changes at high speed operation. While multiple control algorithms exist for electric drives, some offer more robust control than others. …
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Studies on Stability and Stabilization of Randomly Switched Systems
… 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 approach …
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Improvement of cleaning effectiveness through Statistical Process Control in active pharmaceutical ingredient (API) manufacturing
… to be a resultant of inadequate process control and monitoring. Statistical Process Control (SPC) implemented using process automation was found to improve the success rate of cleaning processes significantly. SPC introduction required breaking down the cleaning operation into component …
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Event-Based Control and Estimation with Stochastic Disturbances
This thesis deals with event-based control and estimation strategies, motivated by certain bottlenecks in the control loop. Two kinds of implementation constraints are considered: closing one or several control loops over a data network, and sensors that report measurements only as intervals (e.g. …
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Analytical investigation of active control of radiated inlet noise from turbofan engines
… developed to study the potential of active noise control techniques for reducing radiated tonal inlet noise from turbofan engines. The analytical model consists of multiple control sources placed in the periphery of the engine inlet duct which inject anti-noise into the duct to destructively …
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Regulation of exogenous retroviruses and endogenous retroelements by MOV10
… host genome. Host cells have, therefore, evolved multiple control mechanisms, such as cellular restriction factors, to protect their genomes from the pathogenic and mutagenic effects of retroelements. Identification of the full complement of these proteins is vital to comprehend the capacity of …
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A flexible and innovative platform for autonomous mobile robots
… foundation upon which roboticists may build and control autonomous mobile robots. This platform, however, has been used only within this research group on a minimal number of projects. As is, there has been no published discussion on the application of CREAL and the STACK to various types of …
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A Compiler Directed Framework for Parallel Compositional Systems
… be considered as extremes along a sharing axis. Multiple threads through a process share all global state, whereas instances of a process (or independent processes) share no global state. Weaves provide the generalized framework that allows arbitrary (selective) sharing of state between multiple …
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Understanding the effect of cognitive reference frames on unmanned aircraft operations
… to understand the difficulties associated with controlling both the unmanned aircraft and an onboard video sensor. Traditional unmanned aircraft involve multiple operators controlling multiple control displays that are often oriented on misaligned reference frames. One example unmanned aircraft …
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Actuator-Work Concepts Applied to Morphing and Conventional Aerodynamic Control Devices
… for the comparison of various aerodynamic control device configurations. This estimated "actuator work," or practical work as it will be referred to as in this thesis, is based on the aerodynamic and structural resistance to a control surface deflection. It is meant to represent the …
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COMPUTERIZED BEHAVIORAL SKILLS TRAINING, SELECTION-BASED INSTRUCTION, LAG REINFORCEMENT SCHEDULES, AND THE EMERGENCE OF TOPOGRAPHY-BASED RESPONSES TO INTERVIEW QUESTIONS
<p>This investigation evaluated a computerized behavioral skills training package for teaching responses to interview skills by adolescents and young adults with learning disabilities. The package consisted of instructional videos, video-modeling, rehearsal, feedback, and selection-based …
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A Virtual Space Vectors based Model Predictive Control for Three-Level Converters
… output ac passive filters.</p> <p>Various control strategies have been proposed and implemented for 3-L VSCs. Among all the existing control methods, finite-control-set model predictive control (FCS-MPC) has been extensively investigated and applied due to its simple and intuitive design, …
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Primary refrigeration system commissioning based on a transcritical 2- stage R744 cycle
… for start-up. Once the system is started, the controllers are manually tuned by an operator to achieve stable and reliable performance. However, this project aims to determine whether a better performance can be achieved by first modelling the system, determining the transfer function of each …
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Impact analysis of motor faults on the DC Bus in electric vehicle drivetrains
… utilizing a test rig that facilitated the controlled implementation of known faults in induction motors connected to an electric vehicle powertrain configuration, thus enabling the application of various control methodologies. The induction motors employed in this study comprised a healthy …
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Spiropyrans as color-generating mechanophores
… limited to indirect means of inducing and controlling chemical reactions. Sometimes, the inherent reactivity and structure of the reactants and the properties of the products such as thermodynamic stability can be relied upon to give the desired product. In other cases, high activation …
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