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 “"Cascading outages"”.
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An Initial Exploration of Spatial Spreading of Cascading Failure in an Electric Power System
<p>Large blackouts typically 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 …
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Steady-State Analysis in Transmission System Planning per Latest TPL-001-4 NERC Standard
Several cascading outages that have occurred in the past have shown the importance of performing appropriate and coordinated transmission system planning between the different Planning Coordinators and Transmission Planners in a power system. In very large, interconnected systems, this coordinated …
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Analysis of power system disturbances due to relay hidden failures
… plays very important role in power system cascading outages. The type of relaying system failures that are the most troublesome are the ones that have a potential to remain hidden until being exposed by some abnormal power system states to trigger relay misoperations. Each commonly used …
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Cascading Events in the Aftermath of a Targeted Physical Attack on the Power Grid
… Interconnection is considered to study the cascading events. A detailed model of control and protection system in the power grid is considered to ensure the accurate representation of cascading outages. Particularly, the problem of identifying a set of k critical nodes, whose failure/attack …
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The Advancement of Adaptive Relaying in Power Systems Protection
… prone to unnecessary operation which can lead to cascading outages. Where a secure scheme will not operate unnecessarily, it is prone to pieces of the system becoming damaged when relays fail to operate properly. With microprocessor based relaying schemes, a hybrid reliability focus is attainable …
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AI-based Detection Against Cyberattacks in Cyber-Physical Distribution Systems
… and failure to detect attacks timely can lead to cascading outages. A comprehensive cyber-physical system is developed to deploy different intrusion detection solutions and quantify the effect of proactive detection in the cyber layer. The attack detection approach is driven by artificial …
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Extracting resilience metrics and load composition from utility data
… the system. These devices record the details of outages and load. This thesis shows how this utility data can be processed to offer insights into the resilience and load composition of electric power distribution systems. This thesis quantifies the resilience of power distribution systems using …
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A Local Measurement Based Protection Methodology for Initiating Controlled Islanding in Power Systems
… experienced major blackouts in the past due to cascading outages. Hence, preventing the cascading outage holds the key to the prevention of such blackouts in the future. To address this problem, researchers have proposed controlled islanding as a last resort that splits the power system into …