Essays about: "grid operation"

Showing result 11 - 15 of 222 essays containing the words grid operation.

  1. 11. On the road to grid stability - Using batteries in heavy vehicles and charging infrastructure as frequency reserves

    University essay from Lunds universitet/Produktionsekonomi

    Author : Matilda Kjellström; Caroline Wuttke; [2023]
    Keywords : Case Study; Electrification; Frequency regulation; Energy reserve; Battery; Heavy vehicles; Vehicle-to-grid; Technology and Engineering;

    Abstract : Background: Climate change and increasing threats that come with it fosters a need for changing from fossil sources of energy to renewable ones. Sweden aims to have net zero greenhouse gas emissions by the year of 2045. One of the sectors that need to take part in this shift towards fossil free energy is the transport industry. READ MORE

  3. 12. Relay settings for frequency derivative protection against islanding : Optimizing RoCoF-Hysteresis and Delay for the Swedish power grid: An investigation of relevant values

    University essay from KTH/Hälsoinformatik och logistik

    Author : Ahmad Safari; [2023]
    Keywords : Islanding; unintentional islanding; distributed energy resources; main grid; RoCoF; hysteresis; delay; Ödrift; oavsiktlig ödrift; distribuerade energiresurser; stamnät; RoCoF; hysteres; fördröjning;

    Abstract : This report addresses the parameter settings for a protective relay designed to safeguard a 15 kW wind turbine located in Rimbo, Norrtälje municipality, against unintentional islanding. This type of situation arises when distributed energy resources continue to supply local loads, even if the main grid has been unintentionally disconnected. READ MORE

  4. 13. Evaluation of key performance indices for frequency quality : A method for evaluating frequency stability in the Nordic power system

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

    Author : Sophia Larbi Engelbrektsson; [2023]
    Keywords : Ancillary Services; Kinetic Energy; Frequency Dependent Load; Frequency Stability; Frequency Quality; KPI; Nordic Power System; Frekvensberoende Last; Frekvenskvalité; Frekvensstabilitet; Kinetisk Energi; Nordiska Elsystemet; Nyckeltal; Stödtjänster;

    Abstract : The Nordic power system is in a changing phase, with more power electronic interfaced connections, and HVDC connections to other synchronous areas, which impacts the frequency quality. This is a challenge for the transmission system operator of Sweden, Svenska Kraftnät, who, with the other Nordic transmission system operators, is responsible for the physical balancing of the Nordic power system. READ MORE

  5. 14. Batteries charging into the future? Techno-economical analysis of BESS participation on the Swedish frequency regulation market using a mixed method approach

    University essay from Lunds universitet/Miljö- och energisystem

    Author : Theodor Rosengren; [2023]
    Keywords : Battery Energy Storage Systems; Frequency Regulation; FCR-D; FFR; economic feasibility; Sweden; Technology and Engineering;

    Abstract : As the penetration of variable renewable energy is increasing, the demand for flexibility in the electrical grid is on the rise. One way in which flexibility is needed is to provide frequency regulation. If electricity consumption and production momentarily are unbalanced there needs to. READ MORE

  6. 15. Life cycle assessment of a camera system : A case study at Veoneer

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

    Author : Ahamed Wazeem; Dharshan Siddarth Mohan; [2023]
    Keywords : life cycle assessment LCA ; FLC2; mono camera system; environmental impact; impact categories.; livscyeklanalys LCA ; FLC2; monokamerasystem; miljöpåverkan; effektkategorier.;

    Abstract : With the growing number of cameras installed in automobiles for a safe driving experience, their environmental impact is relatively unknown and inevitably, the need to calculate its life cycle impact arises. Therefore, this study aims to conduct an attributional life cycle assessment (LCA) to determine the environmental impact of a mono camera system namely the Forward-Looking Camera -2 (FLC2) used in automobiles. READ MORE