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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Stegen, S. Junwei Lu |
| Copyright Year | 2010 |
| Description | Author affiliation: Griffith School of Engineering, Griffith University, Nathan, Brisbane Qld 4111, Australia (Stegen, S.; Junwei Lu) |
| Abstract | Conventional high frequency power transformers are configured without protection to avoid parasitic effects. Therefore this paper presents and investigates a FEM technique and measurement results for planar and coaxial high frequency power transformers used for DC/DC converters in photo voltaic (PV) power systems. The winding structure includes a Faraday shield between the primary and secondary windings and is designed to minimize skin and proximity effects, eddy current losses, the leakage inductance, and the inter winding coupling capacitance. Finite Element Method is employed to analyze the magnetic flux and eddy current distributions, and to accurately calculate the intra- and inter- winding capacitances based on the theory of capacitances in a multi-conductor electro-magnetic system. The two different kinds of HF transformers have been tested and experimentally simulated. The measured results demonstrate, in contrast to non shielded transformers, that 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 and the leakage induction. |
| Starting Page | 414 |
| Ending Page | 417 |
| File Size | 1494504 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424456215 |
| e-ISBN | 9781424456239 |
| DOI | 10.1109/APEMC.2010.5475521 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-04-12 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Power measurement Power system protection Power system analysis computing DC-DC power converters Frequency conversion Capacitance Frequency measurement Coaxial components Power transformers Eddy currents |
| Content Type | Text |
| Resource Type | Article |
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