Towards broadband over power lines systems integration: Transmission characteristics of underground low-voltage distribution power lines

Lazaropoulos, AG

dc.contributor.author	Lazaropoulos, AG	en
dc.date.accessioned	2014-03-01T02:14:51Z
dc.date.available	2014-03-01T02:14:51Z
dc.date.issued	2012	en
dc.identifier.issn	19376472	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30152
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84858388982&partnerID=40&md5=f7b0165219d01b35d180209ed77ee3a8	en
dc.subject.other	Bottom up approach	en
dc.subject.other	Broadband over power lines	en
dc.subject.other	Frequency ranges	en
dc.subject.other	Integration process	en
dc.subject.other	Low-pass	en
dc.subject.other	Low-voltage	en
dc.subject.other	Low-voltage distributions	en
dc.subject.other	Multiconductor transmission line theory	en
dc.subject.other	Numerical results	en
dc.subject.other	Physical layers	en
dc.subject.other	Power distribution grids	en
dc.subject.other	Power lines	en
dc.subject.other	Simplified approximation	en
dc.subject.other	Simulations and measurements	en
dc.subject.other	Systems integration	en
dc.subject.other	Transmission channels	en
dc.subject.other	Transmission characteristics	en
dc.subject.other	Underground power distribution	en
dc.subject.other	Armor	en
dc.subject.other	Cables	en
dc.subject.other	Electric lines	en
dc.subject.other	Linearization	en
dc.subject.other	Network layers	en
dc.subject.other	Underground cables	en
dc.title	Towards broadband over power lines systems integration: Transmission characteristics of underground low-voltage distribution power lines	en
heal.type	journalArticle	en
heal.publicationDate	2012	en
heal.abstract	A complete methodology is employed to determine the transmission characteristics of low-voltage/broadband over power lines (LV/BPL) channels associated with underground power distribution networks, in the light of the multiconductor transmission line (MTL) theory. The established bottom-up approach, already used to treat overhead and underground MV/BPL transmission, is extended to analyze BPL transmission in three-phase N-conductor underground lines with common shield and armor. This analysis shows that these cables may support N + 2 modes, giving rise to N + 2 separate transmission channels which reduce to N+1 if the armor either does not exist or is grounded and to N if the shield is also grounded. In addition to the generalized analysis, a simplified approximation concerning three-phase N-conductor underground cables is also presented. Taking the generalized analysis and the simplified approximation into account, their numerical results concerning attenuation in various underground LV/BPL channels in the frequency range 1-100MHz are validated against relevant sets of simulations and measurements with satisfactory accuracy and compared to corresponding results of overhead and underground MV/BPL channels. It has been verified that the attenuation in overhead and underground BPL channels depends drastically on power distribution grid type, MTL configuration, and cables used. Moreover, the attenuation in underground LV/BPL channels exhibits a lowpass behavior, is significantly higher than that of overhead MV/BPL ones, and is comparable to that of underground MV/BPL ones. A consequence of the proposed methodology is that it can facilitate the integration process and intraoperability of LV/BPL and MV/BPL systems through their common physical layer handling.	en
heal.journalName	Progress In Electromagnetics Research B	en
dc.identifier.issue	39	en
dc.identifier.spage	89	en
dc.identifier.epage	114	en