Accurate frequency estimation with phasor angles

Simple item page
dc.contributor.authorChen, Jianen
dc.contributor.committeechairPhadke, Arun G.en
dc.contributor.committeememberXavier, M. A.en
dc.contributor.committeememberLiu, Y. A.en
dc.contributor.committeememberDe La Ree, Jaimeen
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:50:57Zen
dc.date.adate2009-12-04en
dc.date.available2014-03-14T21:50:57Zen
dc.date.issued1994-04-04en
dc.date.rdate2009-12-04en
dc.date.sdate2009-12-04en
dc.description.abstractA power system should always operate in a balanced and stable condition at its designed frequency. Any significant upset of this balance will produce a change in the power system frequency. It is the responsibility of the monitoring and protective devices to detect and restore the system to the equilibrium operating condition at the nominal frequency as soon as it is practical to do so. An accurate measurement of both frequency deviation and rate of change of frequency will greatly facilitate the restoration process. In this thesis, a recursive algorithm for precise frequency and rate of change of frequency measurement is presented. The algorithm consists of three major steps. First, a rough frequency estimation for a data window is computed using a second order least error square approximation on the phasor angles of the input waveform. Then, a resampling based on the rough frequency estimation is carried out, followed by another second order least error square approximation to obtain the final results. The results of simulations using this approach are provided.en
dc.description.degreeMaster of Scienceen
dc.format.extentvii, 94 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-12042009-020203en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12042009-020203/en
dc.identifier.urihttp://hdl.handle.net/10919/46099en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1994.C546.pdfen
dc.relation.isformatofOCLC# 31047752en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1994.C546en
dc.subject.lcshFrequencies of oscillating systems -- Measurementen
dc.subject.lcshFrequency stabilityen
dc.titleAccurate frequency estimation with phasor anglesen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
LD5655.V855_1994.C546.pdf
Size:
2.72 MB
Format:
Adobe Portable Document Format
Download

Collections

Masters Theses