Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title An Effective Gyrator-based Transformer Modeling using PSIM
Authors Hee-Su Choi ; Sung-Jin Choi
DOI 10.6113/TKPE/2016.21.3.207
Page pp.207-214
ISSN 1229-2214
Keywords PSIM; Magnetic Circuit; Magnetizing Inductance; Leakage Inductance
Abstract Magnetic circuit is a physical modeling method that is useful in designing and analyzing power transformers, especially for a priori evaluation of leakage and magnetizing inductance before actual production. In this study, a novel modeling approach that uses PSIM magnetic elements adopting gyrator and permeance-capacitances is investigated. A formula to determine the permeance-capacitors in the core and leakage path are established, and a simulation jig is devised to link the physical model and the electrical terminal characteristics with an automated parameter determination process. The derived formula is verified by measurement results of the prototype transformer samples. Given its accuracy and simplicity, this approach is suitable for analyzing and designing LLC resonant transformers whose leakage and magnetizing inductance are very critical to circuit operation.