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Impact evaluation of conducted UWB transients on terminal loads in a network
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0003-1583-6284
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0003-4740-1832
2016 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

In this paper, we consider a conducted UWB disturbance due to intentional electromagnetic interference (IEMI), and evaluate impact quantifiers at the loads of a network. Through FFT, we characterize the time-domain transient and apply a Baum-Liu-Tesche (BLT) approach. The EMIreceived at the loads, which can be inductive, capacitive or resistive, is calculated and via the inverse FFT, we get the load responses in time-domain. To perform an impact evaluation of the loads, five quantifiers, i.e., time-domain peak, total signal energy, peak signal power, peak time rate of change and peak time integral of the pulse, are employed. It is seen that the impact evaluation of different kinds of loads, in a particular network, should be based on different attributes depending upon the characteristics of the transient.

Place, publisher, year, edition, pages
2016.
Keyword [en]
conducted UWB transient, IEMI, galvanic network, impact evaluation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-189870OAI: oai:DiVA.org:kth-189870DiVA: diva2:949637
Conference
EUROEM 2016
Note

QC 20160722

Available from: 2016-07-21 Created: 2016-07-21 Last updated: 2017-09-21Bibliographically approved
In thesis
1. Impact Evaluation of Intentional Electromagnetic Interference (IEMI) on Targeted Loads in Complex Networks Using Analytical Investigations
Open this publication in new window or tab >>Impact Evaluation of Intentional Electromagnetic Interference (IEMI) on Targeted Loads in Complex Networks Using Analytical Investigations
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

With the proliferation of various electronic and electrical devices, IEMI has become a critical issue that may severely threaten the modern society. For practical protection considerations, it is crucial to comprehensively evaluate the potential damages resulted by IEMI. The major objective of this thesis is to study the impacts of IEMI on the targeted load in complex networks. More exactly, with respect to certain IEMI, the characteristics of the resulting frequency response on the targeted load are studied, and the effects of network configurations, i.e., the attribute of load impedances, lengths of lines, parameters of disturbance source, location of source and network structures, are also investigated.

First, we developed a novel efficient method to solve the frequency response, which is applicable for arbitrary networks. The key idea is decomposing the whole complex network into multiple equivalent units, and performing a recursive approach to efficiently compute the frequency response without losing the precision.

Subsequently, we studied the periodicity of the load response in the frequency domain. Starting with a simple network, we derived and verified the period of the frequency response. During the study, the periodicity with respect to load and media was discussed.

Furthermore, with respect to five important time-domain norms, i.e., time-domain peak, total signal energy, peak signal power, peak time rate of change, and peak time integral of the pulse, we considered a parameterized ultra-wideband (UWB) transient as the disturbance source, and thoroughly studied its impacts on the targeted load regarding network configurations, which include load impedance, the lengths of lines and parameters of the UWB transient.

Finally, we adopted a statistical approach to investigate the receptivity at the targeted load in a network. Via complementary cumulative distribution function, the stochastic IEMI and its effects on the targeted load were studied. Moreover, by statistical approach, we also investigated how the network structure affects the frequency response of the targeted load. The results give suggestions on how to protect the targeted load by varying network structures.

Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2017. 63 p.
Series
TRITA-EE, ISSN 1653-5146 ; 2017:111
Keyword
Intentional Electromagnetic Interference, Networks, BLT, Transmission Line
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-214799 (URN)978-91-7729-510-5 (ISBN)
Public defence
2017-10-12, Kollegiesalen, Brinellvägen 8, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20170922

Available from: 2017-09-22 Created: 2017-09-21 Last updated: 2017-09-22Bibliographically approved

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