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 81 for “"Centralized Control"”.
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Centralized Control of Power System Stabilizers
… advantage of wide area measurements to propose a centralized nonlinear controller that acts on power system stabilizers, to cooperatively increase the damping of problematic small signal oscillations all over the system. The structure based on decision trees results in a simple, efficient, and …
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Robust de-centralized control and estimation for inter-connected systems
… with the theoretical development of the control of inter-connected systems to achieve the whole overall stability and specific performance. A special included feature is the Fault-Tolerant Control (FTC) problem for the inter-connected system in terms of local subsystem actuator fault …
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Assessing Impacts of Decentralizing Airpower Command and Control
<p>Centralized control is a fundamental tenet of joint airpower doctrine, yet there are operational situations in which some degree of decentralization may be appropriate. The purpose of this research was to quantitatively assess the impacts of decentralizing the command and control (C2) of …
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On Programmable Control and Optimization for Multi-Hop Wireless Networks
… is known to be difficult. The main approach to control the operation of such a network relies on a distributed paradigm, assuming that a centralized approach is not feasible. Relying on a distributed paradigm could be justified at the time when the basic technical building blocks (e.g., node …
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Mixed Modes of Autonomy for Scalable Communication and Control of Multi-Robot Systems
… This dissertation developed and evaluated MRS control architectures to solve the dynamic multi-robot autonomous routing problem. Dynamic multi-robot autonomous routing requires robots to complete a trip from their initial location at the time of task allocation to an assigned destination. The …
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Fuel-conserving environmental control strategies for small Islanded microgrids
In this thesis I designed and deployed a control system that subjects Environmental Control Units (ECUs) at U.S. Army Forward Operating Bases (FOBs) to centralized control, and demonstrated how intelligent operation of the ECU load can result in considerable fuel savings. I also developed a …
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Networked control of aircraft operations at airports and in terminal areas
The goal of this thesis is to develop a control strategy for airport operations that integrates the management of arrivals and departures. The strategy is based on four central ideas: (1) the objective of reducing aircraft flight times, taxi times and fuel burn, (2) the emphasis on developing …
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Modeling, Control and Optimization of a Plate Reactor
… with the efficient mixing and reaction control typical of microreactors. With this new concept, highly exothermic reactions can be produced using more concentrated reactants and more accurate temperature control. This will reduce the reaction time and the need for downstream separation, …
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Hierarchical Decentralized Control for Enhanced Stability of Large-Scale Power Systems
… with regards to system monitoring, operation and control. We envision that with the emergence of `active' distribution systems consisting of `prosumers' and localized energy markets, decentralized control methods in power systems are gaining a growing attention among power researchers. …
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A control framework for distributed (parallel) processing environments
A control framework for distributed (parallel) processing environments is introduced. The control framework supplies a centralized control sub-system within a distributed environment to manage the resources available on a network of computers. Special attention is centered on the execution …
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Security and decentralized control of the SFS global file system
… all machines in the world, and avoid any form of centralized control. Using SFS, any unprivileged user can access any file server in the world securely and with no prior arrangement on the part of system administrators. New file servers are immediately accessible securely by all client machines. …
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String Stable Constant-Spacing Platoon with Robustness to Communication Delays and Cutoff
… develops a string stable, constant-spacing control strategy for connectedautonomous vehicle networks with robustness to communication delays and cutoff. It is well-known that decentralized constant-spacing strategies cannot achieve string stability, which requires the error to decrease as it …
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Trade relations between Southern U.S. cities and Latin America: A study of how the port cities New Orleans, Houston, and Miami fare against one another amid increasing competition for trade with Latin America
… has affected decentralization and greater centralized control and management within governments traditionally unconstrained by international change, city governments. City governments must be increasingly active internationally to survive in a politically decentralized global environment, …
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Modeling, design, control and validation of a multiple-input DC-DC converter topology for effective renewable energy management
… as less components, higher power density and centralized control. A novel multiple-input single-output DC-DC converter topology is proposed for effective energy management. The topology is designed depending on the conventional structure of boost and buck converters and benefits greatly from …
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Implementation of a Multi-Agent System in Java Agent Development Framework for a large-scale fossil-fuel electrical power unit control.
… and more in the short term future. The control for these large-scale power plants can be complex but must still address several different operating objectives. Implementing advanced control for a large-scale power plant targeting multiple objectives can be computationally intensive as …
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Kami : an anarchic approach to distributed computing
… using adaptive algorithms with no form of centralized control. Instead of attempting to provide a controlled environment, this thesis assumes a heterogeneous and uncontrolled environment, and presents a model for distributed computation that is completely decentralized and uses multicast …
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The Last German Victory: Combat Doctrine and Tactical Performance in Operation Market Garden, September 1944
… particularly with regards to command and control and the employment of firepower, and seeks to assess the degree to which each force was actually suited to the circumstances that they faced during the operation. The study concludes that German combat doctrine and training, based around a …
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Anthills built to order : automating construction with artificial swarms
… actions of many simple agents acting with no centralized control or preplanning. These natural systems motivate investigating the use of artificial swarms to automate construction or fabrication. The goal is to be able to take an unspecified number of simple robots and a supply of building …
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Spectrum Management in Dynamic Spectrum Access: A Deep Reinforcement Learning Approach
… infrastructure in DSA networks to support centralized control. As a result, DSA users have to perform spectrum managements, including spectrum access and power allocations, independently without accurate channel state information. In this thesis, a novel spectrum management approach is …
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Inter-flow consistency: novel SDN update abstraction for supporting inter-flow constraints
… of networking by decoupling the data plane and control plane. With the centralized control plane, updating the networks become much more convenient to the network operators. However, due to the distributed nature of the data plane, people fail to avoid transitional states of SDN during network …
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