AC Resistance and Leakage Inductance Estimation for Planar Transformers With Parallel-Connected Windings
نویسندگان
چکیده
Regarding the ever-increasing switching frequency of power converters, there is a lack tools to perform quick and effective optimization high-frequency transformers embedded in isolated converters. Indeed, at high operating frequency, geometry core windings deeply impacts overall transformer performance. Specifically, assessing accurately current distribution parallel-connected challenging key issue. Winding parallelization, frequently implemented low-voltage high-current applications so as decrease Joule losses, may be an ineffective solution because skin proximity effects. They create unbalanced windings, which greatly ac resistance leakage inductance transformer. This article proposes innovative analytical model permitting simply compute resistance, inductance. The proposed approach comprehensively presented, validated using both measurements two-dimensional finite element analysis analyzed giving guidelines engineers designing transformers.
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ژورنال
عنوان ژورنال: IEEE Transactions on Power Electronics
سال: 2023
ISSN: ['1941-0107', '0885-8993']
DOI: https://doi.org/10.1109/tpel.2022.3203515