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 20 for “"Power System Simulation"”.
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A continuum Approach to Power system simulation
The behavior of large and tightly interconnected power systems resembles, in certain circumstances, the behavior of a continuously distributed system. This resemblance motivated the derivation of continuum models, which were used to explain and predict disturbance propagation, un-damped power …
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Behavioral Methods for Next-Generation Shipboard Power System Simulation: Letting SPARCS Fly
… this gap, but is underdeveloped to support the system architectures of tomorrow's ships. This work details the advancement of behavioral modeling of electrical systems to incorporate hybrid AC/DC and ring bus architectures, the development of parallelization techniques, and SPARCS: a software …
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Variations in modeling and algorithmic factors impacting on small-signal stability results : assessment of five industrial-grade power system simulation tools
There are several industrial-grade simulation tools, used for small-signal stability studies, that are commercially available on the market. However, these tools differ in their components modeling and solution methodology. Therefore, different simulation tools can give different results for the …
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An investigation into the capabilities of three simulation tools for small-disturbance stability analysis
… at the University of Cape Town comparing power system simulation tools. Part of the ongoing research at the University of Cape Town, which looks at solution methodology, power system component models and software flexibility using simulation tools not discussed in this thesis can be found …
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Comparison of three power system software packages for small-signal stability analysis
Many power system simulation tools exist for small-signal stability analysis. This is due to the rapid development of computer systems, higher industrial growth and the need for reliable power system simulation tools for efficient planning and control of electric power systems. Three power system …
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Automated Level Selection for Design-Aimed Simulation
<p>Simulation-based design provides a comprehensive environment to evaluate products without building physical prototypes. If the simulation environment is able to select appropriate model levels automatically for different stages of the incremental design, the simulation can be performed without …
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Analysis of harmonic distortion in an Integrated Power System for naval applications
… warship. A steady state model of an Integrated Power System (IPS) was developed in a commercially available power system simulation tool. The system chosen for this study was a three-phase, 4160 VAC, 80 MW power system with a 450 VAC bus to supply traditional ship service loads. Sensitive loads, …
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Resilience and Cybersecurity for Distribution Systems with Distributed Energy Resources
… energy resources in electric energy distribution systems. Those distributed energy resources (DERs), mostly inverter-based, can act as resiliency sources for the grid but also introduce new control and stability challenges. In this thesis, a cyber-physical system (CPS) testbed is proposed …
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APPLICATION OF ARTIFICIAL INTELLIGENCE TO STATIC VAR SOURCE CONTROL FOR IMPROVING POWER SYSTEM DAMPING
… Var Compensators (SVCs) have been widely used in power systems to keep terminal voltages within bounds. The other application is to improve power systems damping, especially for loosely connected power systems. However, contributions to the damping of system oscillations from the conventional …
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Creating a shipboard power simulation tool using electrical load behavior modeling
Trends in power system simulation that demand computationally-intensive, physics-based models may impede the acquisition of useful results for applications like condition-based maintenance [1], electrical plant load analysis (EPLA) [2], and the scheduling and tasking of finite generation and …
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On Verification of Load Models for Frequency Response Using PMU Data
… large variations in frequency that change their power consumption as a result. Therefore, load modeling is a crucial element in power system simulation, and a better understanding of load response in frequency excursion events is necessary. The main objective of this thesis is to investigate the …
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Application of Neural Networks to Inverter-Based Resources
… equipment and advanced metering infrastructure, system operators have access to unprecedented amounts of data. Simultaneously, grid-connected power electronics technology has had a large impact on the way electrical energy is generated, transmitted, and delivered to consumers. Artificial …
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Data-Centric Situational Awareness and Management in Intelligent Power Systems
… of technology and society has made the current power system a much more complicated system than ever. The request for big data based situation awareness and management becomes urgent today. In this dissertation, to respond to the grand challenge, two data-centric power system situation awareness …
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Topics in Electromobility and Related Applications
… context of smart grid and smart transportation systems. The first topic focuses on investigating the impacts of different EV charging strategies on the grid. In Chapter 3, we present a mathematical framework for formulating different EV charging problems and investigate a range of typical EV …
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Propagation of Electromechanical Disturbances across Large Interconnected Power Systems and Extraction of Associated Modal Content from Measurement Data
Changes in power system operating conditions cause dynamic changes in angle and frequency. These disturbances propagate throughout the system area with finite speed. This propagation takes the form of a traveling wave whose arrival time at a particular point in the system can be observed using a …
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Stochastic Dynamics of Cascading Failures in Electric-Cyber Infrastructures
Emerging smart grids consist of tightly-coupled systems, namely a power grid and a communication system. While today's power grids are highly reliable and modern control and communication systems have been deployed to further enhance their reliability, historical data suggest that they are yet …
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Intrusion Detection and Recovery of a Cyber-Power System
… and Communications Technology (ICT) in power systems has revolutionized the monitoring, operation, and control mechanisms through advanced control and communication functions. However, this integration significantly elevates the vulnerability of modern power systems to cyber intrusions, …
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Application of nearly linear solvers to electric power system computation
<p>"To meet the future needs of the electric power system, improvements need to be made in the areas of power system algorithms, simulation, and modeling, specifically to achieve a time frame that is useful to industry. If power system time-domain simulations could run in real-time, then system …
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Optimal sizing and placement of independent power producers on MV, HV and EHV networks for minimum power line losses using neural networks
… 100 MW. This increased the number of Independent Power Producers (IPPs) seeking connection to the South African electricity transmission system (TS) or distribution system (DS) – which, as a mandatory requirement, are to comply with the minimum technical and design grid connection regulations …
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Optimal sizing and placement of independent power producers on MV, HV and EHV networks for minimum power line losses using neural networks
… 100 MW. This increased the number of Independent Power Producers (IPPs) seeking connection to the South African electricity transmission system (TS) or distribution system (DS) – which, as a mandatory requirement, are to comply with the minimum technical and design grid connection regulations …