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Showing result 1 - 5 of 79 essays matching the above criteria.

  1. 1. Lithium iron phosphate batteries for energy shifting

    University essay from KTH/Kemiteknik

    Author : Helena Glisén; [2023]
    Keywords : Lithium iron phosphate batteries; energy shifting; electricty storage; investment calculation; electrification; Litium-järnfosfatbatterier; kortvarig energilagring; ellagring; investeringskalkyl; elektrifiering;

    Abstract : Elanvändningen i Sverige förväntas fördubblas till 2045 på grund av ökad elektrifiering av det svenska samhället. För att ställa om till ett elsystem som är beroende av mer förnyelsebara elproduktionsslag föreslår Svenska kraftnät (2021) att Sverige kommer att behöva öka sin flexibilitet i elnätet. READ MORE

  3. 2. 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

  4. 3. Review and Design of DC Electrical Field Measurement Systems and Related Developments : For Measurements Around HVDC Cable Terminations

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

    Author : Emil Bergvall; [2023]
    Keywords : DC Field Probe; Measurement Systems; Electric Fields; Cable Termination; Ion Drift; Conductivity; HVDC; Field Mill; Field Simulations; Positioning System; MEMS; Electro-Optics; DC Fält Prob; Mätsystem; Elektriska Fält; Kabelavslut; Jondrift; Ledningsförmåga; HVDC; Fältkvarn; Fält Simulationer; Positioneringsystem; MEMS; Elektro-Optik;

    Abstract : With power generation and consumption placed further away from each other, with for example increased offshore power production, the need for HVDC transmission systems increases. As voltage levels in the HVDC transmission system are raised, the losses can be decreased, enabling efficient power transfer over longer distances. READ MORE

  5. 4. Optimal Multitaper Spectrograms

    University essay from Lunds universitet/Matematisk statistik

    Author : Markus Ydreskog; [2023]
    Keywords : Time-frequency analysis; Multitaper spectrogram; Optimization; Wigner distribution; Mathematics and Statistics;

    Abstract : Multitaper spectrograms have been proposed as a method of improving the spectrogram as a time-frequency representation (TFR). This thesis aimed to investigate both previously used and new methods for combining multitaper spectrograms of a Gaussian signal and a chirp. READ MORE

  6. 5. Causes of and solutions to reduce excess material in production processes : A study of electrical motors and generators at ABB Machines

    University essay from Linköpings universitet/Industriell miljöteknik

    Author : Wilma Fager; Hanna Engberg; [2023]
    Keywords : Excess material; investigation; production processes; reduce; material usage; minimize; components;

    Abstract : This thesis focus on the investigation of material usage in the production processes of electrical motors and generators at ABB Machines, a company based in Västerås, Sweden. The study aims to understand the reasons for the occurrence of excess material after the assembly of a motor or generator and explore possible solutions to minimize its occurrence. READ MORE