Back to Search
Start Over
Accurate Calculation and Sensitivity Analysis of Leakage Inductance of High-Frequency Transformer With Litz Wire Winding
- Source :
- IEEE Transactions on Power Electronics. 35:3951-3962
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- Leakage inductance is an important parameter in a high-frequency transformer for its influence on power transmission performance and the soft switching of converters. Nowadays, Litz wire is widely used to control winding loss and reach high efficiency. However, it is not an easy task to accurately calculate its leakage inductance. This article presents a detailed model of leakage energy in Litz wire, and proposes an accurate closed-form expression for calculating the leakage inductance in a high-frequency transformer. The skin effect and the proximity effect of Litz wire are taken into account in two-dimensional polar coordinates, and the filling factor of Litz wire is also considered. A global sensitivity analysis is performed to assess the influence of each parameter on the overall leakage inductance. Finally, two transformer prototypes are made to verify the accuracy of the proposed analytical expression.
- Subjects :
- Power transmission
Leakage inductance
Materials science
020208 electrical & electronic engineering
Litz wire
02 engineering and technology
engineering.material
law.invention
Inductance
Electromagnetic coil
law
0202 electrical engineering, electronic engineering, information engineering
engineering
Electronic engineering
Skin effect
Electrical and Electronic Engineering
Transformer
Electrical conductor
Subjects
Details
- ISSN :
- 19410107 and 08858993
- Volume :
- 35
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Power Electronics
- Accession number :
- edsair.doi...........6196e05fb3053cd209a9eb3ab7c7f6ff