High Frequency Transformers for DC/DC Converter Used in Solar PV System

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Title High Frequency Transformers for DC/DC Converter Used in Solar PV System
Author Lu, Junwei; Butler, D.
Journal Name Journal of Energy and Power Engineering
Year Published 2011
Place of publication United States
Publisher David Publishing
Abstract Abstract: This paper presents and investigates planar and coaxial high frequency power transformers used for DC/DC converters in a three phase photo voltaic (PV) power systems. The winding structure including a Faraday shield between the primary and secondary windings is designed to minimize eddy current losses, skin and proximity effects, and to reduce the leakage inductance, and the inter winding coupling capacitance. Finite Element Method is employed to analyze the magnetic flux and eddy current distributions. The two different kinds of prototype high frequency transformers are designed and tested. The simulation and experiment results are demonstrated and compared with non-shielded transformers. The shielded transformers have achieved the expected results with a relatively small coupling capacitance, compared with the conventional high frequency transformer. This shield decreases the inter-winding coupling capacitance Cps. The topology of this shield has to be such that it acts as a Faraday screen while avoiding eddy current generation.
Peer Reviewed Yes
Published Yes
Publisher URI http://davidpublishing.org/davidpublishing/journals/J6/enegy2011/
Copyright Statement Copyright 2011 David Publishing. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Volume 5
Page from 536
Page to 541
ISSN 1934-8975
Date Accessioned 2012-01-04
Language en_US
Research Centre Queensland Micro and Nanotechnology Centre
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Renewable Power and Energy Systems Engineering (excl Solar Cells)
URI http://hdl.handle.net/10072/44842
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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