Essays about: "Elkraftteknik"

Showing result 1 - 5 of 47 essays containing the word Elkraftteknik.

1. 1. Dynamic Control, Modeling and Sizing of Hybrid Power Plants : Investigating the optimum usage of energy storage for Fortum’s hydropower

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Klas Lindgren; [2023]
   Keywords : Hydropower Plants; Energy Storage Systems; Hybrid Units; Frequency Regulation; Modeling; XGBoost Regression; Vattenkraftverk; Energilagringsystem; Hybridkraftverk; Frekvensreglering; Modellering; XGBoost Regression;

   Abstract : The rapidly evolving Nordic Power System demands enhanced flexibility and robustness in electricity production. The traditional role of hydropower plants in regulating the grid frequency has been challenged by new criteria for dynamic stability, which some units struggle to meet due to their relatively poor dynamic performance. READ MORE

3. 2. Pumped-Storage Hydroelectricity for a Sustainable Electricity Transition

   University essay from KTH/Numerisk analys, NA

   Author : Teodor Elmfeldt; [2023]
   Keywords : Pumped-storage hydroelectricity; Electric grid; Computational Mathematics; Juktan Power Station; Applied mathematics; Power system; Sustainability; Pumpkraft; Elnät; Beräkningsmatematik; Juktan Kraftverk; Tillämpad mate- matik; Elkraftteknik; Hållbarhet;

   Abstract : This master thesis explores the application of Pumped-Storage Hydroelectricity (PSH) within an electricity market characterised by a substantial share of renewable and intermittent electricity production. The purpose of PSH is to enhance the alignment of supply with demand by storing energy at electricity surplus and releasing it during shortage. READ MORE

4. 3. SAVINGS OF MATERIAL RESOURCES AND CARBON EMISSIONS WHEN CONVERTING FOSSIL FUEL CAR TO ELECTRIC : A CASE STUDY FOR SWEDEN

   University essay from KTH/Integrated Transport Research Lab, ITRL; KTH/Elkraftteknik

   Author : Daniel Hiller; [2022]
   Keywords : LCA; carbon emissions; material resources; fossil fuel vehicles; battery electric vehicles; carculator; Sweden; LCA; Kohlenstoffemissionen; Materialressourcen; Fahrzeuge mit fossilen Brennstoffen; batterieelektrische Fahrzeuge; carculator; Schweden;

   Abstract : Transportation in Sweden currently accounts for one-third of domestic GHG emissions. Thereof more than 90 % are allocated to road traffic with passenger cars being the largest contributor. Hence, the Swedish government adopted stringent climate policies to cut transport emissionsby 70 % (compared to 2010) latest until 2030. READ MORE

5. 4. Design and performance comparison of Two-level and Multilevel Converters for HVDC Applications

   University essay from

   Author : Carlos Castillo Bonilla; Sweta Merilyn Tigga; [2019-07-03T12:44:07Z 2019-07-03T12:44:07Z 2011]
   Keywords : Elkraftteknik; Electric power engineering;

   Abstract : The purpose of this thesis is to compare a two-level and a multilevel converter for HVDC substation. For this study, both topologies were designed with different modulation strategies and compared on the basis of size, power losses and impact on power quality. READ MORE

6. 5. Potential of electrical building heating as thermal energy storage in Sweden

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Pontus Dahlström; [2019]
   Keywords : ;

   Abstract : The purpose of this Master thesis is to investigate the potential of using electricity based building heating as thermal energy storage in Sweden and its applications. Building data and statistics along with literature were the basis for data collection and processing. READ MORE