Practical Implementation of a Security-Dependability Adaptive Voting Scheme Using Decision Trees

Simple item page
dc.contributor.authorQuint, Ryan Daviden
dc.contributor.committeechairCenteno, Virgilio A.en
dc.contributor.committeememberDe La Ree, Jaimeen
dc.contributor.committeememberBroadwater, Robert P.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:47:46Zen
dc.date.adate2011-12-06en
dc.date.available2014-03-14T20:47:46Zen
dc.date.issued2011-11-11en
dc.date.rdate2011-12-06en
dc.date.sdate2011-11-11en
dc.description.abstractToday's electric power system is operated under increasingly stressed conditions. As electrical demand increases, the existing grid is operated closer to its stable operating limits while maintaining high reliability of electric power delivery to its customers. Protective schemes are designed to account for pressures towards unstable operation, but there is always a tradeoff between security and dependability of this protection. Adaptive relaying schemes that can change or modify their operation based on prevailing system conditions are an example of a protective scheme increasing reliability of the power system. The purpose of this thesis is to validate and analyze implementation of the Security-Dependability Adaptive Voting Scheme. It is demonstrated that this scheme can be implemented with a select few Phasor Measurement Units (PMUs) reporting positive sequence currents to a Phasor Data Concentrator (PDC). At the PDC, the state of the power system is defined as Stressed or Safe and a set of relays either vote or perform normal operation, respectively. The Adaptive Voting Scheme was implemented using two configurations: hardware- and software-based PDC solutions. Each was shown to be functional, effective, and practical for implementation. Practicality was based on the latency of Wide Area Measurement (WAM) devices and the added latency of relay voting operation during Stressed conditions. Phasor Measurement Units (PMUs), Phasor Data Concentrators (PDCs), and relay operation delays were quantified to determine the benefits and limitations of WAMS protection and implementation of the voting scheme. It is proposed that the delays injected into the existing protection schemes would have minimal effect on the voting scheme but must be accounted for when implementing power system controls due to the real-time requirements of the data.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-11112011-131328en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11112011-131328/en
dc.identifier.urihttp://hdl.handle.net/10919/35667en
dc.publisherVirginia Techen
dc.relation.haspartQuint_RD_T_2011.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectadaptive protectionen
dc.subjectdecision treesen
dc.subjectphasor measurement uniten
dc.subjectphasor data concentratoren
dc.subjectwide area measurementsen
dc.titlePractical Implementation of a Security-Dependability Adaptive Voting Scheme Using Decision Treesen
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer 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:
Quint_RD_T_2011.pdf
Size:
1.49 MB
Format:
Adobe Portable Document Format
Download

Collections

Masters Theses