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 “"Wide-Area monitoring"”.
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Measurements for Wide Area Monitoring, Protection, and Control systems: algorithms, instruments and architectures
… control of the power systems. In this context, Wide Area Monitoring, Protection, and Control (WAMPAC) systems have emerged as a critical solution to enhance the real-time observability and responsiveness of modern power grids. WAMPAC systems take advantage of synchronized measurement networks to …
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Application of Wavelet Analysis and Cross-Correlation Techniques to Wide Area Monitoring of Power Systems
… unit (PMU) is a networked, GPS time-synchronized wide-area-monitoring device for modern power transmission systems. The recent and widespread adoption of these devices will provide a wealth of information about the dynamic state of the power system. However, the increasing number of measurement …
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New Methods for Synchrophasor Measurement
… transmission and distribution infrastructure. Wide-area monitoring systems (WAMSs) utilizing synchrophasor measurements can help with understanding, forecasting, or even controlling the status of power grid stability in real-time. A power system Frequency Monitoring Network (FNET) was first …
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Hardware implementation of an automatic adaptive centralized under frequency load shedding
… hardware that enables the implementation of Wide Area Monitoring Protection and Control (WAMPC) application, this gives the opportunity for using industrial grade hardware to implement, evaluate these schemes and, therefore, to validate the recent research findings for industrial use. This …
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Steady State Testing and Analysis of a Phasor Measurement Unit
… PMUs is important to obtain full benefit of the wide area monitoring systems. With the large number of installed PMUs it has become necessary to validate their performance and understand the limitations of each model. A test system was built by NIST in cooperation with NASPI to test for …
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Optimal Substation Coverage for Phasor Measurement Unit Installations
… great deal of value for applications in the wide area monitoring of power systems. Historically, deployment of these devices has been limited by the prohibitive cost of the device itself. Therefore, the objective of the conventional optimal PMU placement problem is to find the minimum number …
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Techniques for Wide-Area State Estimation in Power Systems
… Operators (RTOs), a need for real-time wide-area system monitoring has arisen. The state estimator (SE) is the tool currently used in power systems for real-time monitoring. Because current SE techniques become operationally expensive on such large systems, it is beneficial to consider …
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Power Grid Partitioning and Monitoring Methods for Improving Resilience
… in mitigating extreme events. Two distinct areas are focused on: a) improving grid performance after a severe disturbance, and b) enhancing grid monitoring to facilitate timely preventive actions. The first part of the dissertation presents a proactive islanding strategy to split the bulk …
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Identification, Analysis, and Control of Power System Events Using Wide-Area Frequency Measurements
… of introspection. Only recently have dynamic, wide-area time synchronized grid measurements brought to light the complex relationships between large machines thousands of miles apart. These measurements are invaluable to understanding the health of the system in real time, for disturbances to …
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Experimental analysis and modelling of an information embedded power system
… services such as real time measurement and monitoring are also driving the need for more bandwidth in the communication network and reliable communication infrastructure. These needs will grow further as new remote real-time protection and control applications become more feasible and …
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Peak-ratio analysis method for enhancement of LOM protection using M class PMUs
… of utility systems throughout the world. Wide area monitoring systems, using synchronised phasor measurements, which are beginning to play an increasing role in monitoring and control in transmission networks, may offer opportunities to improve the performance of LOM protection in …
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Robust GPS-based timing for phasor measurement units based on single-receiver and multi-receiver position-information-aided vector tracking
… to utilize phasor measurement units (PMUs) for wide area monitoring and control. PMUs are considered to be one of the most critical technologies for the future and modernization of the power grid. This technology produces time-stamped voltage and current phasor measurements, allowing …
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Hierarchical Decentralized Control for Enhanced Stability of Large-Scale Power Systems
… system, electric power systems, worldwide, are undergoing a paradigm shift with regards to system monitoring, operation and control. We envision that with the emergence of `active' distribution systems consisting of `prosumers' and localized energy markets, decentralized control …
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Modal Analysis Techniques in Wide-Area Frequency Monitoring Systems
The advent of synchronized wide-area frequency measurements obtained from frequency disturbance recorders and phasor measurement units has presented the power industry with special opportunities to study power system dynamics. I propose the use of wide-area frequency measurements in identifying …
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Transient stability assessment of hybrid distributed generation using computational intelligence approaches
… power system is stressed. The real time/online monitoring and prediction of stability limit is needed to prevent future blackouts. In the last decade, Distributed Generators (DGs) among other technologies have received increasing attention. This is because DGs have the capability to meet peak …
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Power Systems Analysis in the Power-Angle Domain
… and solved in the power-angle domain. With the widespread deployment of phasor measurement units and frequency data recorders the industry is looking for more real-time analytical tools to turn real-time wide-area measurements into useful information. Applications based on power-angle domain …
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Enhancing Grid Reliability With Phasor Measurement Units
… grids into '' smart grids". One example is the widely deployed phasor measurement units (PMUs), which enable generating time-synchronized measurements with high sampling frequency, and pave a new path to realize real-time monitoring and control in power grids. However,the massive data generated …
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ICT-Enabled Control and Energy Management of Community Microgrids for Resilient Smart Grid Operation
… lack of situational awareness, lack of real-time monitoring and control, underdeveloped controllers at both the transmission and distribution levels, and lack of preparation for major emergencies; and <strong>(2) </strong>the projected high penetration of renewable energy resources (RES) into the …
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Synchrophasor Sensing and Processing Based Smart Grid Security Assessment for Renewable Energy Integration
… and huge amount of heterogeneous data sources. Widely distributed synchrophasor sensors, such as phasor measurement units (PMUs) and fault disturbance recorders (FDRs), can record multi-modal signals, for power system situational awareness and renewable energy integration.</p> <p>An effective …
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A Wide-Area Perspective on Power System Operation and Dynamics
Classically, wide-area synchronized power system monitoring has been an expensive task requiring significant investment in utility communications infrastructures for the service of relatively few costly sensors. The purpose of this research is to demonstrate the viability of power system monitoring …