Method of designing a multi-winding device

H - Electricity – 02 – M

Patent

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H02M 7/49 (2007.01) H01F 41/00 (2006.01)

Patent

CA 2731652

A method for designing a transformer using three secondary winding phase shift angles and a minimized core cross-sections. The method includes receiving an indication of an acceptable level of total harmonic distortion (THD) for the transformer, identifying a desired number of secondary windings per output phase of the transformer, simulating performance of various models for the transformer various potential phase shift angles, wherein each of the various models includes a set of phase shift angles for the secondary windings of the transformer. The method further includes identifying, based on the simulation, a transformer model that both has no more than three unique phase shift angles in the set and exhibits a primary side THD that is within the acceptable level, identifying an optimized core cross-sections, and reporting the identified transformer model having the three unique phase shift angle and the optimized core cross-sections.

L'invention concerne un procédé de conception d'un transformateur utilisant trois angles de déphasage d'enroulement secondaire et des sections de noyau réduites. Le procédé comprend la réception d'une indication d'un niveau acceptable de taux d'harmoniques (THD) pour le transformateur, l'identification d'un nombre souhaité d'enroulements secondaires par phase de sortie du transformateur, la simulation des performances de divers modèles pour les divers angles de déphasage du potentiel du transformateur, chacun des divers modèles comprenant un ensemble d'angles de déphasage pour les enroulements secondaires du transformateur. Le procédé comprend également l'identification, sur la base de la simulation, d'un modèle de transformateur qui, à la fois, n'a pas plus de trois angles de déphasage unique dans l'ensemble et présente un taux d'harmoniques du côté principal qui est à un niveau acceptable, l'identification de sections transversales de noyau optimisées, et la signalisation du modèle de transformateur identifié ayant les trois angles de déphasage unique et les sections de noyau optimisées.

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