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 8 of 8 for “"line outages"”.
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Small signal analysis of power systems: Eigenvalue tracking method and eigenvalue estimation contingency screening for DSA
… second part of this dissertation develops a new line outage screening method for dynamic security analysis (DSA). The new screening method extends the use of distribution factors commonly used in static security analysis (SSA) to DSA by using the factors with eigenvalue sensitivities to estimate …
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An Initial Exploration of Spatial Spreading of Cascading Failure in an Electric Power System
… involve the cascading outage of transmission lines. However, little is known about the overall patterns of cascading outages. This research processes and initially examines observed utility data to explore the spatial spreading of cascading failure. The utility data is combined from two …
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Power System Disturbance Analysis and Detection Based on Wide-Area Measurements
… Reliability Council of Texas (ERCOT). The linear relationship between frequency deviation and frequency change rate during generation/loss mismatch events is verified by the measurements in the three Interconnections. The relationship between the generation/load mismatch and system …
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Fast power network detection of topology change locations using PMU measurements
… be continuously updated for the purpose of on-line analysis. Several topology processing schemes have been developed in the literature to accomplish this task. The majority of these schemes process breaker statuses to detect changes in system topology. Transformer tap positions as well as …
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Measurement-based tools for power system monitoring and operations
This thesis proposes several online power system monitoring and operations tools that leverage real-time measurements with little or no reliance on models obtained offline. Instead of relying on offline models, which can be grossly inaccurate, as in conventional power system monitoring and …
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Line and Generator Outage Identification using Synchrophasor Measurements
Identification of outages in power systems is crucial to raise situational awareness and prevent cascading failures. As a result of wide adoption of phasor measurement units (PMUs), synchronized measurements with high temporal resolution provide new opportunities for event detection and …
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Modal Analysis Techniques in Wide-Area Frequency Monitoring Systems
… power system disturbances, I postulate that a linearized version of this model may be used to examine system natural response in terms of frequency and phasor measurements. The disturbances that I will investigate include generator and line outages. For any particular outage, the power system …