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Showing 1 to 13 of 13 for “"power system security"”.
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Statistical Scheduling of Economic Dispatch and Energy Reserves of Hybrid Power Systems with High Renewable Energy Penetration
… approach focuses on minimizing the overall power operating cost with considerations of renewable energy uncertainty and power system security. A hybrid power system generates electricity from both conventional and renewable energy sources. In such a system, it is challenging and yet an open …
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Cyber-Resilient Control of Synchronous Condensers
… 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 investigates and proposes …
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Synchrophasor Sensing and Processing Based Smart Grid Security Assessment for Renewable Energy Integration
<p>With the evolution of energy and power systems, the emerging Smart Grid (SG) is mainly featured by distributed renewable energy generations, demand-response control and huge amount of heterogeneous data sources. Widely distributed synchrophasor sensors, such as phasor measurement units (PMUs) …
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Flexible AC transmission system compensation on a utility transmission system
Power system security can be increased by the use of flexible AC Transmission System devices, FACTS, in transmission systems experiencing high power flows. This thesis presents an analysis of one of these devices, namely, a Thyristor Controlled Series Compensator, TCSC, as applied to the Nevada …
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Inter-Area Oscillation Damping with Power System Stabilizers and Synchronized Phasor Measurements
… are detrimental to the goals of maximum power transfer and optimal power system security. A contemporary solution to this problem is the addition of power system stabilizers to the automatic voltage regulators on the generators in the power system. The damping provided by this additional …
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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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AN APPROACH TO SECURITY EVALUATION OF COMPOSITE POWER SYSTEMS
A bulk electric power system is composed of generating units, transmission lines, transformers and loads. The complexity varies from one system to another, but the associated technical problems are basically the same. It is not uncommon to find power systems which have more than ten thousand buses. …
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Enhanced dynamic security assessment for power system under normal and fake tripping contingencies.
Recently, power system networks have become more dependent on new technologies especially in using a communication network to enhance the overall performance of system operation. The communication network facilities are applied to send and receive data and commands through the wide-area power …
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Short term load forecasting based on hybrid artificial neural networks and particle swarm optimisation
… future load for the generation scheduling at power stations; assessment of the security of the power system as well as for timely dispatching of electrical power. STLF is primarily required to determine the most economic manner in which an electrical utility can schedule generation resources …
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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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Response-Based Synchrophasor Controls for Power Systems
The electric power grid is operated with exceptionally high levels of reliability, yet recent large-scale outages have highlighted areas for improvement in operation, control, and planning of power systems. Synchrophasor technology may be able to address these concerns, and Phasor Measurement Units …
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Countering Cybersecurity Vulnerabilities in the Power System
<p>Security vulnerabilities in software pose an important threat to power grid security, which can be exploited by attackers if not properly addressed. Every month, many vulnerabilities are discovered and all the vulnerabilities must be remediated in a timely manner to reduce the chance of being …