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 “"Contingency Analysis"”.
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Reliable power system operation plan - steady state contingency analysis
… safely, economically and reliably, steady state contingency analysis must be performed. This analysis is performed to ensure that the system meets all requirements and Grid Code standards under normal operations and given a variety of outages or contingencies and other operating condition, where …
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Cascading Failures and Contingency Analysis for Smart Grid Security
… the two different structures are observed during contingency analysis experiments. Simulation results for single and multiple contingencies have been reported and the violation of line limits during single and multiple outages are observed for vulnerability analysis. Finally, a cyber-physical …
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Load Modeling using Synchrophasor Data for Improved Contingency Analysis
… models of the system. The results from the contingency studies are only as accurate as the models of the grid components. The load components are generally the most difficult to model since they are controlled by the consumer. This study focuses on developing static and dynamic load models …
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Adaptive transmission and distribution dynamic contingency analysis with high penetrations of distributed energy resources
… An extension for transmission-oriented dynamic contingency analysis is shown, which allows for the incorporation of highly detailed, disaggregated feeder models in regions of anticipated high dynamic uniqueness, while not adding the usual computational burden of doing so. First, the …
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Market orientation, competitive strategy type and performance in independent retail businesses : a contingency analysis in a market town context
… of these small firms through empirical analysis and the application of management research methods in a contextual setting. Based upon a comprehensive review of relevant literature spanning the boundaries of marketing, retailing and small business research a model is developed that …
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A sensitivity analysis of cyber contingency ranking within the SOCCA framework
… well into the future. The industry standard of contingency analysis largely focuses on accidental outages, such as natural disasters, equipment malfunction, etc. Intentional, directed attacks and cyber components are not well understood or accounted for. In response, the Security-Oriented …
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The application of genetic algorithms to identify the worst credible states in a bulk power system
… who are planning and operating the system. Contingency analysis which is the classical method is applied to analyze all possible states when one to three components is the system are removed or failed at a time"--Abstract, page iii.
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Resiliency of interdependent gas and electricity systems : the New England case
… gas and electricity system is used to do contingency analysis and determine components of both systems that are critical to improve resilience. The model's main contribution is that it represents gas dynamics accurately. Using this model, we looked at several threats at the junction of gas …
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Mobility and Student Achievement in High Poverty Schools
… Act of 2002 (NCLB) was explored. A two-way contingency analysis was used to determine if differences exist between mobile and nonmobile students on reading and math achievements tests. Additionally, the frequency of mobility and mobile and nonmobile among 3 ethnic groups were explored to …
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Malicious data detection and localization in state estimation leveraging system losses
In power systems, economic dispatch, contingency analysis, and the detection of faulty equipment rely on the output of the state estimator. Typically, state estimations are made based on the network topology information and the measurements from a set of sensors within the network. The state …
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Multiple-Element Contingency Screening
… to the full set of results for the double-outage contingency analysis, solved using the dc power flow. The results show that, even using a very limited amount of information about the system, it is possible to predict a very high percentage of the double-outage contingencies that result in …
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Fast power network detection of topology change locations using PMU measurements
System monitoring and contingency analysis are crucial functions in power control centers. In order to perform these analyses, a complete model of the power network is needed. Moreover, to account for system configuration dynamics, this model must be continuously updated for the purpose of on-line …
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Simple certificate for power distribution network security assessment
… the real solvable boundary-crucial for contingency analysis, security assessment, and planning network processes-in multidimensional parameter space is burdensome and time consuming; hence there is an urgent need for a tool to identify the security region, or the set of viable …
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Size Optimization of Utility-Scale Solar PV System Considering Reliability Evaluation
… cost. Mitigation cost is accomplished with N-1 contingency analysis. The cost function minimization process is implemented in Genetic Algorithm toolbox, which has the ability to search the global optimum with relative computational simplicity.
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An analysis of potential connection points for Hvalárvirkjun in the Westfjords
… were performed. First, a steady state power flow analysis was completed to determine both line loading and the voltage levels at each bus for each option. Furthermore, a N-1 contingency analysis combined with a probabilistic reliability assessment was used to determine the reliability of each …
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Design and analysis of shipboard electrical distribution
… research is a preliminary design and feasibility analysis of a new type of shipboard electrical distribution system for Naval vessels. The design combines three traditionally separate disciplines: damage control, marine engineering, and electric power engineering to produce a hybrid system well …
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An influence model approach to failure cascade prediction
… to predict the failure cascade is important for contingency analysis and corrective control designs to prevent large blackouts. In this thesis, we study an influence model framework to predict failure cascades and try to figure out their underlying pattern in real power systems. A hybrid learning …
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