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 20 of 36 for “"interconnected system"”.
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Conditioning of FNET Data and Triangulation of Generator Trips in the Eastern Interconnected System
… known as FNET, disturbances in the eastern interconnected system (EI) have been monitored and recorded over the past several years. Analysis of this and other data by a wide variety of research scientists and engineers has rendered the idea that frequency disturbances from generator trips, …
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A Lyapunov-based small-gain theorem for interconnected switched systems
Stability of an interconnected system consisting of two switched systems is investigated in the scenario where in both switched systems there may exist some subsystems that are not input-to-state stable (non-ISS). We have shown that, providing the switching signals neither switch too frequently nor …
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Uma metodologia para tratamento de dados de curvas de carga baseada em técnicas de inteligência artificial
… by the abnormal operation of the electrical system or failures and problems in the measurement system. The presence of corrupted data impairs specification of load forecasting models and consequently affects the quality of predictions obtained. Therefore, the construction of a load prediction …
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Systems, generativity and interactional effects
… effects-that arise from the interaction of systems. We may describe the common situation of interest as small entities of systems coming together, interacting, and producing as an aggregate a behavior that would not have occurred without interaction. Those situations are fundamental and …
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Nesting Automated Design Modules In An Interconnected Framework
… generalized formal method for nesting PDGs in an interconnected system. A procedure for decomposing an individual PDG into reusable modules will be defined and a software architecture will be presented which takes advantage of these reusable modules. This method breaks the PDG structure into …
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Sanitizing private data for repair systems
The SOLAR system helps restore interconnected system integrity after security attacks with a focus of minimizing the exposure of sensitive data in the repair logs. It builds upon Warp, a repair system for Django web applications which logs all major actions taken by the server from incoming request …
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Investigating the Interplay of Teacher Orientations, Epistemic Tool Use, and Instructional Moves in Shaping Adaptive Teaching Expertise in Science Classrooms
… theory, AdTex is conceptualized as a dynamic, interconnected system comprising three interrelated layers: (1) teachers' epistemological, ontological, and axiological orientations toward learning; (2) their strategic use of epistemic tools—language, dialogue, and argumentation; and (3) their …
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Computationally Driven Algorithms for Distributed Control of Complex Systems
… reduction and distributed control problems for interconnected systems, i.e., systems that consist of multiple interacting agents/subsystems. The study of the analysis and synthesis problems for interconnected systems is motivated by the multiple applications that can benefit from the design and …
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Stability analysis of large-scale power electronics systems
… to investigate the large-signal stability of interconnected power electronics systems. The approach consists of decoupling the system into a source subsystem and a load subsystem, and stability of the entire system can be analyzed based on investigating the feedback loop formed by the …
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Avaliação da estabilidade a pequenos sinais em sistemas CA/CC em paralelo
In Brazil, the rst DC transmission systems have traditionally been constructed as asynchronous interconnections of CA networks. However, with the start-up of the bipoles associated to the Belo Monte complex, the interconnection will take place in parallel with the AC system of the National …
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Multiple Swing Out-of-Step Relaying
The reduced stability margin, at which power systems are being operated these days, has encouraged the power industry to come up with new ideas to guarantee a continuous and reliable operation of the bulk interconnected system. The development of the synchronized Phasor Measurement technology, and …
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Um sistema de apoio à decisão bicritério para o planejamento da operação energética
The energy aspects of the electric system operation planning in the Brazilian interconnected system are still outlined according the paradigm of the post-war period, in which all the efforts sought the automation of most decisions, through the crescent sophistication of the computational models, …
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"LOAD MODIFICATION" -- A NEW METHOD TO CALCULATE GENERATING CAPACITY RELIABILITY INDICES
… and energy production cost of a power system. This method is essentially a process of modifying a given load duration curve with a generating capacity distribution to give an equivalent load duration curve. This technique is called the 'Load Modification Approach'. This new method can …
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Stability effects of frequency controllers and transmission line configurations on power systems with integration of wind power
… integration of wind power on multi-machine power systems. First, the small-signal stability effects of turbine governors connected to synchronous generators in the presence of large-scale penetration of wind and load power disturbances are analyzed. Results suggest that tuning the turbine …
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ICσOS: σOS for Intercloud Environments
… clouds, or to utilize multiple clouds in an interconnected manner. This thesis presents ICσOS, an intercloud operating system that enables tenants to interact with multiple clouds’ infrastructure as a single interconnected system with minimal additional management overhead. ICσOS extends σOS— …
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Design and implementation of a microgrid-capable solar inverter
The notion of a practical microgrid -- a small, interconnected system of generators and loads that operates both synchronously with a larger, centralized grid and isolated from the grid, autonomously -- has grown popular as electric utilities are installed more frequently in areas lacking a …
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Small signal analysis of power systems: Eigenvalue tracking method and eigenvalue estimation contingency screening for DSA
Two aspects of small signal analysis of power systems are investigated in this dissertation. The first part presents the eigenvalue tracking method for power system stabilizer (PSS) placement. Traditional methods for determining PSS placements are based on the analysis of the interconnected system. …
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Some principal organizational parameters affecting the capital expenditure process
In order to optimally design and utilize any system or process, it is necessary to know the parameters within which the process must function. This thesis developed some of the more important organizational parameters affecting the capital expenditure process. A primary objective that has …
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Waterfowl Pair and Brood Use of Dug brood Complexes in East-Central South Dakota
… in wetland basins is the dug brood complex; an interconnected system of pond units, channels, and islands, primarily created to provide waterfowl brood rearing habitat during drought. In 1981-82, a study was conducted to evaluate waterfowl pair and brood use of 8 pairs of Class IV wetlands in …
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Event-triggered near optimal adaptive control of interconnected systems
<p>"Increased interest in complex interconnected systems like smart-grid, cyber manufacturing have attracted researchers to develop optimal adaptive control schemes to elicit a desired performance when the complex system dynamics are uncertain. In this dissertation, motivated by the fact that …
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