Conditioning of FNET Data and Triangulation of Generator Trips in the Eastern Interconnected System

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dc.contributor.authorGardner, Robert Matthewen
dc.contributor.committeechairLiu, Yiluen
dc.contributor.committeememberDe La Ree, Jaimeen
dc.contributor.committeememberCenteno, Virgilio A.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:42:43Zen
dc.date.adate2005-08-18en
dc.date.available2014-03-14T20:42:43Zen
dc.date.issued2005-07-29en
dc.date.rdate2006-08-18en
dc.date.sdate2005-08-04en
dc.description.abstractUsing data from the frequency disturbance recorders (FDRs) that comprise the nation-wide 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 disturbances from generator trips, transmission line trips, load trips, and other events, travel with finite speed as electromechanical waves throughout any power system (in this case the EI). Using FNET data as a tool, it is possible to measure and output the arrival times of these disturbance waves with a time resolution of 100 ms. To observe with certainty the arrival time of the frequency disturbance waves, field data collected by the FDRs must first be conditioned in a robust manner. The current method that uses the moving mean of raw FDR data is analyzed and two computationally efficient robust methods are suggested in this report. These new methods that rely on robust statistics are more resistant to the effect of outliers contained within the raw FDR data. Furthermore, like the moving mean, these methods smooth the raw data without removing the general trend. Having recorded and conditioned the FDR data, three conventional triangulation techniques taken from the field of seismology are proposed and analyzed. This study reconfirms the fact that the EI is not a medium of continuous elasticity though which the frequency perturbations travel but rather a discontinuous patchwork of varying elasticities. Within this report, nine generator trip events are analyzed and the aforementioned triangulation methods are applied. The advantages and disadvantages of each method are discussed. To conclude, axioms of future research are proposed and delineated.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-08042005-172825en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-08042005-172825/en
dc.identifier.urihttp://hdl.handle.net/10919/34338en
dc.publisherVirginia Techen
dc.relation.haspartThesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectEastern Interconnected Systemen
dc.subjectHypocenteren
dc.subjectHypocentral Locien
dc.subjectElectromechanical Waveen
dc.subjectFrequency Perturbation/Wave Front/Disturbanceen
dc.subjectFrequency Data Recorderen
dc.subjectFNETen
dc.titleConditioning of FNET Data and Triangulation of Generator Trips in the Eastern Interconnected Systemen
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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