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 21 for “"FNET"”.
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Frequency Monitoring Network (FNET) Algorithm Improvements and Application Development
… wide-area Frequency Monitoring Network (FNET) is an extremely low cost and quickly deployable wide-area frequency measurement system with high dynamic accuracy which consists of Frequency Disturbance Recorder (FDR) distributed to more than 100 places around North America and an …
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The Frequency Monitor Network (FNET) Design and Situation Awareness Algorithm Development
… PMUs, the frequency monitoring network (FNET) developed by the Virginia Tech Power IT lab is an Internet—based, GPS—synchronized, wide-area frequency monitoring network deployed at the distribution level, providing a low-cost and easily deployable WAMs solution. In this dissertation, the …
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Study of Global Power System Frequency Behavior Based on Simulations and FNET Measurements
… power frequency monitoring network project (FNET), the first part of the study focuses on utilizing system simulation as a tool to assess the frequency measurement accuracy needed to observe frequency oscillations from events such as remote generation drops in three U.S. power systems. …
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Conditioning of FNET Data and Triangulation of Generator Trips in the Eastern Interconnected System
… frequency monitoring network known as FNET, disturbances in the eastern interconnected system (EI) have been monitored and recorded over the past several years. Analysis of this and other data by a wide variety of research scientists and engineers has rendered the idea that frequency …
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Power Systems Frequency Dynamic Monitoring System Design and Applications
… wide area Frequency Monitoring Network (FNET) was proposed to provide the imperative dynamic information for the large-scale power grids and the implementation of FNET has made the synchronized observations of the entire US power network possible for the first time. The FNET system …
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Next Generation Design of a Frequency Data Recorder Using Field Programmable Gate Arrays
… Tech has created a Frequency Monitoring Network (FNET). The FNET is composed of these distributed FDRs as well as an Information Management Server (IMS). Since frequency information can be used in many areas of power system analysis, operation and control, there are a great number of end uses for …
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High Accuracy Real-time GPS Synchronized Frequency Measurement Device for Wide-area Power Grid Monitoring
… wide-area Frequency Monitoring Network (FNET) was proposed to provide imperative frequency dynamics information for a variety of system-wide monitoring, analysis and control applications. The implementation of FNET has for the first time made the synchronized observation of the entire …
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High Precision Dynamic Power System Frequency Estimation Algorithm Based on Phasor Approach
… to the wide-area frequency-monitoring network (FNET) ---has been developed at Virginia Tech. In this FNET system, an algorithm that employs the relationship between phasor angles and deviated frequency [13] is used to calculate both frequency and its rate of change. Tests of the algorithm …
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Printed Circuit Board Design for Frequency Disturbance Recorder
… Tech implemented Frequency Monitoring Network (FNET) with these FDR devices. FNET is a collection of identical FDRs placed in different measurement sites to allow for data integration and comparison. Frequency is an important factor for power system control and stabilization. With funding and …
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Dynamic Model Based Novel Findings in Power Systems Analysis and Frequency Measurement Verification
… the U.S. national frequency monitoring network (FNET) has been being continuously operated to monitor the wide-area power system frequency in the U.S. Using the measured frequency data, the event of the power system is triggered, and its location and scale are estimated. This study also looks for …
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Wide Area Analysis and Application in Power System
Frequency monitoring network (FNET) is an Internet based GPS synchronized wide-area frequency monitoring network deployed at distribution level. At first part of this thesis, FNET structure and characteristics are introduced. After analysis and smoothing FDR signals, the algorithm of event trigger …
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New Methods for Synchrophasor Measurement
… A power system Frequency Monitoring Network (FNET) was first proposed in 2001 and was established in 2004. As a pioneering WAMS, it serves the entire North American power grid through advanced situational awareness techniques, such as real-time event alerts, accurate event location estimation, …
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Power System Disturbance Analysis and Detection Based on Wide-Area Measurements
… The North American Frequency Monitoring Network (FNET) takes GPS-synchronized wide-area measurements in a low-cost, easily deployable manner at the 120 V distribution level, which presents more opportunities to study power system dynamics. This work explores the topics of power system disturbance …
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Next Generation Frequency Disturbance Recorder Design and Timing Analysis
… measurements, the Frequency Monitoring Network (FNET) was developed and introduced by the Power IT laboratory at Virginia Tech. The FNET is comprised of many Frequency Disturbance Recorders (FDR) geographically distributed throughout the United States. The FDR is a dedicated data acquisition …
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Identification, Analysis, and Control of Power System Events Using Wide-Area Frequency Measurements
… network of low voltage frequency monitors, FNET, is able to track these waves as they travel throughout the North American interconnected grids. In contrast to other wide-area measurement systems, the ability to easily measure frequency throughout the grid provides a way to identify, locate, …
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Distributed Grid Analytics Platform (DGAP) for power grid monitoring at the distribution level
… operated for the Frequency monitoring Network (FNET) project by Virginia Tech and the University of Tennessee. While installing FDRs at the low-voltage distribution level of the power grid was a great step toward reducing the cost and limitations of PMU use, there are still drawbacks and …
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Electric Field Effects on Bacterial Deposition and Contaminant Sorption as Drivers of Bioavailability
… an approach that interlinked the net forces Fnet on a bacterium to observed deposition efficiencies. The driving factor of electrokinetic effects was found to be the relative strength of |FEOF| and |FEP|. If |FEOF| > |FEP|, increased bacterial deposition efficiency and if |FEOF| < |FEP| …
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Wide Area Power System Monitoring Device Design and Data Analysis
The frequency disturbance recorder (FDR) is a cost effective data acquisition device used to measure power system frequency at the distribution level. FDRs are time synchronized via the global positioning system (GPS) timing and data recorded by FDRs are time stamped to allow for comparative …
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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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Power Systems Analysis in the Power-Angle Domain
The idea of performing power systems dynamic analysis in the power-angle domain has been hinted at by previous researchers, but this may be the first published document to develop detailed techniques by which entire power systems can be represented and solved in the power-angle domain. With the …
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