Hybrid numerical techniques for power transformer modeling: A comparative analysis validated by measurements

Tsili, MA; Kladas, AG; Georgilakis, PS; Souflaris, AT; Pitsilis, CP; Bakopoulos, JA; Paparigas, DG

dc.contributor.author	Tsili, MA	en
dc.contributor.author	Kladas, AG	en
dc.contributor.author	Georgilakis, PS	en
dc.contributor.author	Souflaris, AT	en
dc.contributor.author	Pitsilis, CP	en
dc.contributor.author	Bakopoulos, JA	en
dc.contributor.author	Paparigas, DG	en
dc.date.accessioned	2014-03-01T02:42:48Z
dc.date.available	2014-03-01T02:42:48Z
dc.date.issued	2004	en
dc.identifier.issn	0018-9464	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31086
dc.subject	Boundary-element methods	en
dc.subject	Finite-element methods	en
dc.subject	Hybrid methods (FEM-BEM)	en
dc.subject	Magnetostatics	en
dc.subject	Short circuit impedance	en
dc.subject	Transformers	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Boundary element method	en
dc.subject.other	Electric impedance	en
dc.subject.other	Finite element method	en
dc.subject.other	Magnetic fields	en
dc.subject.other	Magnetic leakage	en
dc.subject.other	Magnetostatics	en
dc.subject.other	Mathematical models	en
dc.subject.other	Reliability	en
dc.subject.other	Hybrid methods (FEM-BEM)	en
dc.subject.other	Power transformers	en
dc.subject.other	Short circuit impedance	en
dc.subject.other	Electric transformers	en
dc.title	Hybrid numerical techniques for power transformer modeling: A comparative analysis validated by measurements	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/TMAG.2004.825303	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TMAG.2004.825303	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The paper presents alternative numerical techniques implemented in power transformer analysis and design focusing on the short circuit impedance evaluation. The proposed method adopts a particular reduced scalar potential formulation enabling a three-dimensional (3-D) magnetostatic problem solution. This method, requiring no source field calculation, in conjunction with a mixed finite-element/boundary-element technique, results in a very efficient 3-D numerical model for power transformer design office use. This model is used to develop an effective computational tool, enabling the accurate transformer characteristics prediction, thus increasing its reliability and reducing its production cost. The computed results of the proposed methodology are validated through measurements in the case of a three-phase wound core power transformer.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Magnetics	en
dc.identifier.doi	10.1109/TMAG.2004.825303	en
dc.identifier.isi	ISI:000220884000080	en
dc.identifier.volume	40	en
dc.identifier.issue	2 II	en
dc.identifier.spage	842	en
dc.identifier.epage	845	en