High frequency model for transient analysis of transformer windings using multiconductor transmission line theory

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dc.contributor.authorFattal, Feras
dc.contributor.examiningcommitteeGole, Aniruddha (Electrical and Computer Engineering) Maghoul, Pooneh (Civil Engineering)en_US
dc.contributor.supervisorKordi, Behzad (Electrical and Computer Engineering) Ziomek, Waldemar (Electrical and Computer Engineering)en_US
dc.date.accessioned2017-03-30T13:36:27Z
dc.date.available2017-03-30T13:36:27Z
dc.date.issued2017
dc.degree.disciplineElectrical and Computer Engineeringen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractTransients encountered by transformers in power stations during normal operation can have complex oscillatory overvoltages containing a large spectrum of frequency components. These transients can coincide with the natural frequencies of the transformers windings, leading to voltages that can be greater or more severe than the current factory proof tests. This may lead to insulation breakdown and catastrophic failures. Existing lumped parameter RLCG transformer models have been proven to be less accurate for very fast transient overvoltages (VFTO) with frequencies over 1 MHz. A white box model for transient analysis of transformer windings has been developed using Multiconductor Transmission Line (MTL) Theory. This model enables the simulation of natural frequencies of the transformer windings up to frequencies of several MHz, and can be used to compute voltages between turns by representing each turn as a separate transmission line. Both continuous and interleaved disk windings have been modelled and a comparison and validation of the results is presented.en_US
dc.description.noteMay 2017en_US
dc.identifier.urihttp://hdl.handle.net/1993/32172
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectTransformer Modelingen_US
dc.subjectTransformer Transientsen_US
dc.subjectTransformer Windingsen_US
dc.subjectInterleaveden_US
dc.subjectWhite Box Modelen_US
dc.subjectTransformer Testingen_US
dc.subjectTransformer Simulationen_US
dc.subjectPower Transformeren_US
dc.subjectMulticonductor Transmission Line Theoryen_US
dc.subjectMTLen_US
dc.subjectFinite Element Methoden_US
dc.subjectTransformer Resonanceen_US
dc.subjectFrequency domain solutionen_US
dc.subjectTime dome solutionen_US
dc.subjectChain parameteren_US
dc.titleHigh frequency model for transient analysis of transformer windings using multiconductor transmission line theoryen_US
dc.typemaster thesisen_US
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