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A Digital Directional Coupler with Applications to Partial Discharge Measurements
Växjö University, Faculty of Mathematics/Science/Technology, School of Mathematics and Systems Engineering.ORCID iD: 0000-0002-7018-6248
Växjö University, Faculty of Mathematics/Science/Technology, School of Mathematics and Systems Engineering.
2008 (English)In: IEEE Transactions on Instrumentation and Measurements, ISSN 0018-9456, Vol. 57, no 11, p. 2561-2567Article in journal (Refereed) Published
Abstract [en]

This paper presents a digital directional coupler (DDC) that separates forward- and backward-traveling waves on a transmission line. Based on two independent wideband measurements of voltage and current and on frequency-domain digital wave splitting using a fast Fourier transform (FFT), the DDC is a versatile device for direction separation. A practical procedure is described for the calibration of the digital processor with respect to the particular transmission line and the voltage and current sensors that are being used. As an experiment, a DDC was designed and implemented using low-cost wideband sensors and was installed with medium-voltage equipment in a power distribution station. Partial discharge (PD) measurements were conducted on cross-linked polyethylene (XLPE)-insulated power cables to illustrate the directional separation capabilities of the DDC.

Place, publisher, year, edition, pages
2008. Vol. 57, no 11, p. 2561-2567
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Physics, Electrotechnology
Identifiers
URN: urn:nbn:se:vxu:diva-3564OAI: oai:DiVA.org:vxu-3564DiVA, id: diva2:203520
Available from: 2008-10-20 Created: 2008-10-20 Last updated: 2017-01-10Bibliographically approved

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Lundbäck, JonasNordebo, SvenBiro, Thomas

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  • nn-NB
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Output format
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  • asciidoc
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