Title :
Circuit model of transformers windings using vector fitting, for frequency response analysis (FRA)
Author :
Alvarez, David L. ; Rosero, Javier A. ; Mombello, Enrique E.
Author_Institution :
EM&D. Dept. de Ing. Electr. y Electron., Univ. Nac. de Colombia, Edificio, Colombia
Abstract :
This paper calculates resonances in transformer windings, using a network of equivalent circuits, magnetically coupled. Inductive and resistive parameters of these circuits are calculated of a new form using vector fitting algorithm, through simulations and impedance measurement. It also includes a physical interpretation of the circuit model used, and the analysis of the importance of using frequency dependency of resistances and inductances.
Keywords :
electric impedance measurement; equivalent circuits; frequency response; transformer windings; vectors; FRA; circuit model; equivalent circuits; frequency dependency; frequency response analysis; impedance measurement; inductive parameters; physical interpretation; resistive parameters; transformers windings; vector fitting algorithm; Conductors; Equations; Integrated circuit modeling; Mathematical model; Resistance; Vectors; Windings; Additional Losses; Equivalent Circuit; Finite Elements Method FEM; Frequency Dependence; Frequency Response Analysis FRA; Transformer; Vector Fitting;
Conference_Titel :
Power Electronics and Power Quality Applications (PEPQA), 2013 Workshop on
Conference_Location :
Bogota
DOI :
10.1109/PEPQA.2013.6614961
