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An investigation into the effects of load modeling of transient stability and analysis of voltage collapse
Bibliography: leaves 187-193.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2014
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| _version_ | 1867613284250681344 |
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| access_status_str | Open Access |
| author | Khumalo, Joseph |
| author2 | Petroianu, Alexander |
| author_browse | Khumalo, Joseph Petroianu, Alexander |
| author_facet | Petroianu, Alexander Khumalo, Joseph |
| author_sort | Khumalo, Joseph |
| collection | Thesis |
| description | Bibliography: leaves 187-193. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/9645 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:41.762Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/9645 An investigation into the effects of load modeling of transient stability and analysis of voltage collapse Khumalo, Joseph Petroianu, Alexander Electrical and Electronic Engineering Bibliography: leaves 187-193. The aim of this thesis is to investigate the effects of load modeling on transient stability studies and to analyze the phenomenon of voltage collapse. In addition, the different generator models are compared and the effects of voltage dips on induction motor performance are investigated. The modeling of loads dates back to the late forties when network analyzers were still in use. The prohibitive computational requirements resulted in many approximations being made to the load models. In turn, this resulted in the use of simple models which did not provide sufficient information about the dynamic behavior of loads. With the advent of digital computers, more accurate load models could be used in dynamic simulations. Despite this improvement in computational tools, the problem of load modeling for stability studies is still very complex. The load composition changes with the time of the day, the consumer's lifestyle, weather, state of the economy and other factors. The accurate load model would include amongst other things, the effects of the abovementioned factors. Since these factors are unpredictable, accurate load modeling becomes very complex indeed. It is mainly for these reasons that the approximate are still widely in use. Ideally, the response of these approximate models should be compared to the actual loads under similar disturbances. A further concern of the thesis is the study of voltage stability. The voltage stability problem has become a matter of growing concern amongst bulk transmission utilities worldwide over the last decade. For long, the stability of a power system was related exclusively to the synchronous stability of the generators. 2014-11-15T19:35:51Z 2014-11-15T19:35:51Z 1992 Master Thesis Masters MSc http://hdl.handle.net/11427/9645 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Electrical and Electronic Engineering Khumalo, Joseph An investigation into the effects of load modeling of transient stability and analysis of voltage collapse |
| thesis_degree_str | Master's |
| title | An investigation into the effects of load modeling of transient stability and analysis of voltage collapse |
| title_full | An investigation into the effects of load modeling of transient stability and analysis of voltage collapse |
| title_fullStr | An investigation into the effects of load modeling of transient stability and analysis of voltage collapse |
| title_full_unstemmed | An investigation into the effects of load modeling of transient stability and analysis of voltage collapse |
| title_short | An investigation into the effects of load modeling of transient stability and analysis of voltage collapse |
| title_sort | investigation into the effects of load modeling of transient stability and analysis of voltage collapse |
| topic | Electrical and Electronic Engineering |
| url | http://hdl.handle.net/11427/9645 |
| work_keys_str_mv | AT khumalojoseph aninvestigationintotheeffectsofloadmodelingoftransientstabilityandanalysisofvoltagecollapse AT khumalojoseph investigationintotheeffectsofloadmodelingoftransientstabilityandanalysisofvoltagecollapse |