Underlag för prioritering och kostnadsberäkning vid reinvestering i luftledningsnät: En fallstudie på Sinntorp, ett av Ellevios besiktningsområden
Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesisAlternative title
Assessment method for prioritization of reinvestments in the overhead line network (English)
This thesis considers how an assessment method for reinvestments in the distribution grid can be designed and implemented. The assessment method was created to give long-term estimations of the amount overhead lines that could be substituted with underground cables and how to prioritize between different areas. The regulation of power grid companies was reviewed to highlight important factors for profitable reinvestments. The assessment method was implemented for overhead lines in Ellevio´s distribution grid using the database program FME and validated against real reinvestment decisions in a case study area called Sinntorp. The resulting reinvestment proposals mainly consist of replacing older grid sections and sections where expensive maintenance is planned in the future. The script show similar results as real reinvestment decisions but small differences are noticed related to the script’s hard focus on older grid sections. The script has potential to be used on Ellevio´s entire overhead line network but this requires work to complete essential data. Further validation on new areas are also desired to see if results are reasonable and if the script can be developed to consider more reinvestment factors.
Place, publisher, year, edition, pages
2015. , 38 p.
UPTEC ES, ISSN 1650-8300 ; 16008
reinvestments, assessment method, overhead line network, distribution grid
reinvestering, prioritering, luftledningsnät, distributionsnät
Energy Systems Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-280883OAI: oai:DiVA.org:uu-280883DiVA: diva2:912236
Master Programme in Energy Systems Engineering
Jönsson, Petra, ForskareBergkvist, Mikael, Universitetslektor