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http://dx.doi.org/10.5515/KJKIEES.2014.25.3.259

High-Frequency Parameter Extraction of Insulating Transformer Using S-Parameter Measurement  

Kim, Sung-Jun (Department of Electronical and Computer Engineering, Sungkyunkwan University)
Ryu, Soo-Jung (Department of Electronical and Computer Engineering, Sungkyunkwan University)
Kim, Tae-Ho (Department of Electronical and Computer Engineering, Sungkyunkwan University)
Kim, Jong-Hyeon (Department of Electronical and Computer Engineering, Sungkyunkwan University)
Nah, Wan-Soo (Department of Electronical and Computer Engineering, Sungkyunkwan University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.3, 2014 , pp. 259-268 More about this Journal
Abstract
In this paper, we suggest a method of extracting circuit parameters of the insulating transformer using S-parameter measurement, especially in high frequency range. At 60 Hz, conventionally, no load test and short circuit test are used to extract the circuit parameters. In this paper S-parameters measured from VNA(Vector Network Analyzer) were used to extract the transformer parameters using data fitting method (optimization). The S-parameters from the equivalent circuit using the extracted parameters showed good agreement with those from measurement. Furthermore, the transformer secondary voltages from the equivalent circuit model also coincide quite exactly to the measured secondary voltages in sinusoidal forms. Finally we assert that the proposed method to extract the parameters for the insulating transformer using S-parameter is valid especially in high frequency.
Keywords
Stray Capacitance; S-parameter; Optimization; High-Frequency;
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Times Cited By KSCI : 1  (Citation Analysis)
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