A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions

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dc.contributor.advisorPetroianu, Alexanderen_ZA
dc.contributor.authorVan Eyssen, Juanitaen_ZA
dc.date.accessioned2016-11-10T14:11:48Z
dc.date.available2016-11-10T14:11:48Z
dc.date.issued1999en_ZA
dc.description.abstractPower system rotor-angle unstable conditions may cause undesired operation of distance relays, resulting in the unnecessary switching of lines. To prevent the possible undesired operation of distance relays, a protection type known as out-of-step blocking is used. This protection type is complemented by another type of protection, known as out-of-step tripping protection. The tripping protection's main functions are to detect total loss of synchronism and send tripping signals to selected locations in the system to initiate islanding. In this research the application of out-of-step blocking and tripping protection was investigated. The motivation for the research was provided by system unstable incidents that occurred in Eskom, the electricity utility of South Africa. Detailed out-of-step protection investigations indicated that the out-of-step blocking and tripping protection applied according to a method which is based on an existing approach failed to detect the unstable conditions. In summary, the detailed investigations showed that the existing approach of applying out-of-step blocking and tripping protection is not adequate as it does not allow the necessary observability1 and correct detection of rotor-angle unstable conditions.en_ZA
dc.identifier.apacitationVan Eyssen, J. (1999). <i>A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/22487en_ZA
dc.identifier.chicagocitationVan Eyssen, Juanita. <i>"A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1999. http://hdl.handle.net/11427/22487en_ZA
dc.identifier.citationVan Eyssen, J. 1999. A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Van Eyssen, Juanita AB - Power system rotor-angle unstable conditions may cause undesired operation of distance relays, resulting in the unnecessary switching of lines. To prevent the possible undesired operation of distance relays, a protection type known as out-of-step blocking is used. This protection type is complemented by another type of protection, known as out-of-step tripping protection. The tripping protection's main functions are to detect total loss of synchronism and send tripping signals to selected locations in the system to initiate islanding. In this research the application of out-of-step blocking and tripping protection was investigated. The motivation for the research was provided by system unstable incidents that occurred in Eskom, the electricity utility of South Africa. Detailed out-of-step protection investigations indicated that the out-of-step blocking and tripping protection applied according to a method which is based on an existing approach failed to detect the unstable conditions. In summary, the detailed investigations showed that the existing approach of applying out-of-step blocking and tripping protection is not adequate as it does not allow the necessary observability1 and correct detection of rotor-angle unstable conditions. DA - 1999 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1999 T1 - A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions TI - A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions UR - http://hdl.handle.net/11427/22487 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/22487
dc.identifier.vancouvercitationVan Eyssen J. A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 1999 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/22487en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherElectrical Engineeringen_ZA
dc.titleA new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditionsen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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