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DLR use for optimization of network design withvery large wind (and VRE) penetration
National Laboratory on Energy and Geology (LNEG).
E.ON AB.
National Laboratory on Energy and Geology (LNEG).
National Laboratory on Energy and Geology (LNEG).
Show others and affiliations
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Due to the stochastic nature of wind and clouds,the integration of wind and PV generation in the powersystem poses serious challenges to the long-term planning oftransmission systems. Grid reinforcements always involverelevant direct costs while the average load factor of the windand solar PV dedicated transmission lines is usually low.Additionally, in very windy sites, the same high windresource that produces large amounts of wind generation andmay congest the transmission lines transporting it to distantconsumption centres may also have a beneficial effect inincreasing the transmission capacity of those lines. In fact, theoccurrence of wind not only contributes to the loading of theconnecting line, but also increases the line capacity, via theconvective cooling of the cables - one of the main heattransfer mechanisms in conductor heat balance; in otherwords, higher winds speeds contribute to faster cooling ofconductor and therefore higher conductor’s capacitypotential. In this paper the existing methodologies tocharacterize those thermal effects in electrical cables - usuallyreferred as dynamic line rating (DLR) - are applied to severalIEA Task 25 countries case studies to characterize thetechnical value of the dynamic operation of thermallycongested lines, as well as its potential economic benefits.

Place, publisher, year, edition, pages
2018. article id 263
Keywords [en]
Wind power integration, DLR, VRE, Cable thermal balance, smart grids
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-238612OAI: oai:DiVA.org:kth-238612DiVA, id: diva2:1260903
Conference
17th Wind Integration Workshop
Funder
SweGRIDS - Swedish Centre for Smart Grids and Energy StorageSwedish Energy AgencyStandUp for Wind
Note

QC 20181106

Available from: 2018-11-05 Created: 2018-11-05 Last updated: 2018-11-06Bibliographically approved

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DLR use for optimization of network design with very large wind (and VRE) penetration(3244 kB)86 downloads
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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf