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 32 for “"IBR"”.
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Vision-Based Rendering: Using Computational Stereo to Actualize IBR View Synthesis
Computer graphics imagery (CGI) has enabled many useful applications in training, defense, and entertainment. One such application, CGI simulation, is a real-time system that allows users to navigate through and interact with a virtual rendition of an existing environment. Creating such systems is …
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P-Q capability analysis of inverter based resources with typical grid connected filters
… development of inverter-based resources (IBRs) and interconnection of IBRs to the grid, IBR P-Q Capability Charts are also developed and proposed by the power industry to assure IBR operation efficiency and reliability. This thesis presents an evaluation about IBR control relation with the …
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Institution-Based Resource: Concept and Cases
… propose a concept of Institution-Based Resource (IBR) as a novel source of sustainable competitive advantage. We define an IBR as a valuable and symbolic resource that is consecrated and institutionalized by legitimate consecrating institutions, granted to or attained by individuals and/or firms …
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Cybersecurity and Protection Strategies for Inverter-Based Resource Integration
… of power systems with inverter-based resources (IBR). Communication-based control techniques enhance the performance of IBR-dominated power systems, but they increase the risk of cyberattacks. Moreover, the unconventional fault behavior of IBRs can cause traditional protection schemes to …
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Protection and Cybersecurity of Inverter-Based Resources
… not be sufficient for inverter-based resources (IBR) as the fault response of an IBR differs from the response of a synchronous generator. As the composition of the power grid continues to evolve to integrate more IBRs that employ communication-based control algorithms; the power system is also …
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Reinforcement Learning for the Cybersecurity of Grid-Forming and Grid-Following Inverters
… number of installed inverter-based resources (IBR) in the grid, introducing new challenges in IBR control and cybersecurity. IBRs receive their set point through the communication link, which may expose them to cyber threats. Previous work has developed various techniques to detect and mitigate …
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Measuring the Applicability of the Seville Strategy to the Mammoth Cave Area Biosphere Reserve
… use. The International Biosphere Reserve (IBR) program, as defined in the Seville Strategy, encourages locations already involved in conservation to continue to protect biodiversity and foster harmonious relationships between humans and their environment through sustainable development. An …
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Protection and Cybersecurity in Inverter-Based Microgrids
… for integrating inverter-based resources (IBR) in the power system. Distributed control is a potential strategy for controlling such microgrids. However, a major challenge toward the proliferation of distributed control is cybersecurity. A false data injection (FDI) attack on a microgrid …
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A Novel Inverter Based Resource Control Strategy to Facilitate Utility-Scale Renewable Integration and Retain Existing Transmission Protection Infrastructure
… the behavior of these Inverter Based Resources (IBR) in mind. As IBR penetration continues to increase, the overall system behavior under faulted conditions may change to the point where protective relays may fail to accurately detect the location of a fault. This thesis proposes a novel control …
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Development of regional reliability hurdle rate for South Africa
… of Return (ROR) to Incentive Based Regulation (IBR) quality regulation mechanism. This has influenced the reporting, planning, design, operating and maintenance (O&M) philosophy surrounding distribution networks and service delivery to the end customer. The introduction of IBR regulation has …
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Improving the Perception of Depth of Image-Based Objects in a Virtual Environment
… and analysis. While Image-Based Rendering (IBR) has emerged as a viable solution to the asymmetry between data size and its storage and required rendering power, it is limited in its 2D image portrayal of 3D spatial objects. This work describes a novel technique to capture, represent, and …
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Cyber-Resilient Control of Synchronous Condensers
… growing integration of inverter-based resources (IBR) within electrical power systems leads to new challenges to grid stability in weak networks and creates heightened cybersecurity vulnerabilities due to the extensive reliance on information and communication technologies. This dissertation …
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Essays on the macroeconomic implications of financial frictions
… plan and the income-based repayment plan (IBR). My simulation suggests that the distortion of debt on job search decisions is large under the fixed repayment plan. IBR alleviates this distortion and improves welfare. In general equilibrium, debt alleviation achieved through IBR effectively …
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Graphical Methods for Image Compositing and Completion
… problems encountered in image-based rendering (IBR) systems. The significance of such systems is increasing as virtual reality as well as augmented reality are finding their way into many applications, from entertainment to military. Particularly, I propose methods that are based on graph theory …
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Cobertura de riesgo de tasa de interés en cupones de tasa flotante
… en los últimos diez años desde la creación del IBR, de ahí la importancia de evaluar diferentes tipos de IRS que se ajusten a las variaciones del mercado para una gestión más efectiva del riesgo de tasa de interés. Siguiendo la metodología del trabajo de (Schröder & Dunbar, 2010), se aplican, …
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Flow Shop Scheduling for Energy Efficient Manufacturing
… TOU pricing combined with inclining block rate (IBR) is proposed to avoid this issue. Two optimization problems are studied to demonstrate this approach. Each factory optimizes manufacturing schedule to minimize its electricity cost: (1) under TOU pricing, and (2) under TOU-IBR pricing. The …
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Flow Shop Scheduling for Energy Efficient Manufacturing
… TOU pricing combined with inclining block rate (IBR) is proposed to avoid this issue. Two optimization problems are studied to demonstrate this approach. Each factory optimizes manufacturing schedule to minimize its electricity cost: (1) under TOU pricing, and (2) under TOU-IBR pricing. The …
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Modelação da performance em triatletas: um estudo descritivo-exploratório
… braçada (Dstbr) (p=0,024); e Índice de braçada (Ibr) (p=0,000) na modalidade de natação. Já no ciclismo, somente o consumo máximo de oxigênio (VO2 máx) diferiu (p=0,047). Na corrida, as diferença foram significativas no VO2 máx (p=0,007); na freqüência cardíaca de limiar ventilatório (Fcvt) …
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Synchronous Condensers and Grid-Forming Control for the Integration of Inverter-Based Resources in Weak Grids
… with a higher share of inverter-based resources (IBR) exhibit reduced system strength and inertia, which are otherwise provided by synchronous generators (SG). This is because IBRs do not have the rotational inertia of SGs, and they do not contribute to short-circuit fault currents as much as SGs …
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Flexible Control and Stability Paradigms for the Inverter-Dominated Power System
The addition of inverter-based resources (IBR), distributed energy resources (DER), and retirement of synchronous generation has resulted in significant changes to the transient characteristics of the bulk power system (BPS). This dissertation proposes new control and stability paradigms that …
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