A Resonant Tertiary Winding-Based Novel Air-Core Transformer Concept

This paper presents a new concept of air-core transformers, which uses a resonant tertiary winding to create a strong coupling between the primary and secondary transformer windings. A large "magnetizing" impedance is achieved because of the resonance. Experimental and analytical studies a...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power delivery 2012-07, Vol.27 (3), p.1519-1528
Main Authors: Bagheri, P., Xu, W., Freitas, W.
Format: Article
Language:English
Subjects:
Air-core transformer
Applied sciences
Capacitors
Electrical engineering. Electrical power engineering
Exact sciences and technology
Impedance
Magnetic resonance
Power transformer insulation
resonant power transmission
three-winding transformers
Transformers and inductors
Windings
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a new concept of air-core transformers, which uses a resonant tertiary winding to create a strong coupling between the primary and secondary transformer windings. A large "magnetizing" impedance is achieved because of the resonance. Experimental and analytical studies are carried out on a toroidal air-core transformer to assess the effectiveness of the concept. The results show improvements in transformer performance when compared with the results from simple air-core transformers. The power loss caused by the resonant-winding resistance is identified as the main challenging issue for the proposed method. Since the proposed idea is developed and explained based on the three-winding transformer conventional model, the accuracy of the mathematical model is also verified and validated by the experimental tests.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2012.2190758