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Impact evaluation of conducted UWB transients on loads in power-line networks
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0003-4740-1832
2017 (English)In: Advances in Radio Science - Kleinheubacher Berichte, ISSN 1684-9965, E-ISSN 1684-9973, Vol. 15, p. 189-198Article in journal (Refereed) Published
Abstract [en]

Nowadays, faced with the ever-increasing dependence on diverse electronic devices and systems, the proliferation of potential electromagnetic interference (EMI) becomes a critical threat for reliable operation. A typical issue is the electronics working reliably in power-line networks when exposed to electromagnetic environment. In this paper, we consider a conducted ultra-wideband (UWB) disturbance, as an example of intentional electromagnetic interference (IEMI) source, and perform the impact evaluation at the loads in a network. With the aid of fast Fourier transform (FFT), the UWB transient is characterized in the frequency domain. Based on a modified Baum-Liu-Tesche (BLT) method, the EMI received at the loads, with complex impedance, is computed. Through inverse FFT (IFFT), we obtain time-domain responses of the loads. To evaluate the impact on loads, we employ five common, but important quantifiers, i.e., time-domain peak, total signal energy, peak signal power, peak time rate of change and peak time integral of the pulse. Moreover, to perform a comprehensive analysis, we also investigate the effects of the attributes (capacitive, resistive, or inductive) of other loads connected to the network, the rise time and pulse width of the UWB transient, and the lengths of power lines. It is seen that, for the loads distributed in a network, the impact evaluation of IEMI should be based on the characteristics of the IEMI source, and the network features, such as load impedances, layout, and characteristics of cables.

Place, publisher, year, edition, pages
Copernicus GmbH , 2017. Vol. 15, p. 189-198
Keywords [en]
Electromagnetic pulse, Electromagnetic wave interference, Fast Fourier transforms, Frequency domain analysis, Signal interference, Time domain analysis, Complex impedance, Comprehensive analysis, Electromagnetic environments, Frequency domains, Intentional electromagnetic interferences, Powerline networks, Reliable operation, Time domain response, Ultra-wideband (UWB)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-218800DOI: 10.5194/ars-15-189-2017Scopus ID: 2-s2.0-85029936869OAI: oai:DiVA.org:kth-218800DiVA, id: diva2:1162310
Note

QC 20171204

Available from: 2017-12-04 Created: 2017-12-04 Last updated: 2017-12-04Bibliographically approved

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Månsson, Daniel

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