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Vattenkraftsplanering i kombination med vindkraft och Vattenkraftsplanering i kombination med vindkraft och batterier
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Hydropower planning in combination with wind power and batteries (English)
Abstract [sv]

Batterilagring kan bli en viktig pusselbit förett koldioxidfritt elsystem, men för att detta ska vara möjligtmåste det fortfarande vara ekonomiskt hållbart för kraftverksägarna. Målet med projektet är att undersöka hur batterilagringpåverkar ett elsystem med vattenkraft och vindkraft och dra slutsatser om huruvida batterilagring är att rekommendera systemet. Vidare bestäms en lämplig mängd installerade batterierisystemet. Metoden i arbetet inkluderar att designa ett fiktivt elsystem och att lösa ett optimeringsproblem. Det fiktiva elsystemet är baserat på existerande vattenkraftverk i Luleälven kompletterade med vindkraft och batterier. Systemet modelleras som ett deterministiskt linjärt optimeringsproblem (LP) och ärlöst i GAMS (General Algebraic Modelling System). För att undersöka batterilagringens effekt på elsystemet körs fyra fallstudier med olika mängd installerad lagringskapacitet. Eftersom optimeringsproblemen alla går att lösa och genererar en vinst kan batterilagring rekommenderas det fiktiva elsystemet. Installering av batterilagring ökar variationerna i vattenkraftsdriften, vilken eskalerar med ökad andel batterier. En medelhög andel batterier anses vara den lämpligaste andelen med hänsyn till både vinst och driftsplanering.

Abstract [en]

Battery storage may be a key factor towards a CO2 free power system. However, a condition for this solution to befeasible is that it is still economically sustainable for the powerplant owners. The aim of this project is to examine how batterystorage affects a power system consisting of hydropower and windpower, and to draw conclusions about if battery storageis to recommend the power system. Furthermore, a suitable amount of installed battery capacity is to be found. The method includes designing a fictive model of a power system and solvingan optimization problem. The fictive power system model is based on existing hydropower plants in Luleälven in northern Sweden supplemented by windpower and batteries. It is modeledas a deterministic linear optimization problem (LP) and solved with the programming tool GAMS (General Algebraic ModellingSystem). To examine the effects of energy storage in the power system, four case studies are made with different amounts of battery capacity installed in the system. Because the optimization problems are all solveable and generate a profit, battery storage can be recommended to the fictive power system. Installing battery capacity increases the variations in the hydropower production,escalating with higher amounts of batteries. A moderate amount of batteries is found to be the most suitable amount with respect to profit and hydropower planning.

Place, publisher, year, edition, pages
2019.
Series
TRITA-ABE-MBT ; 19409
National Category
Environmental Engineering
Identifiers
URN: urn:nbn:se:kth:diva-256021OAI: oai:DiVA.org:kth-256021DiVA, id: diva2:1343178
Supervisors
Examiners
Available from: 2019-08-15 Created: 2019-08-15 Last updated: 2019-08-15Bibliographically approved

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CiteExportLink to record
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