Essays about: "power transformer"

Showing result 21 - 25 of 120 essays containing the words power transformer.

  1. 21. Characterizing coil windings noise due to compressive fault currents : A study to determine if there is a characteristic noise from transformer windings due to fault currents

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

    Author : Simon Lundgren; [2022]
    Keywords : Transformer windings; short circuit forces; current pulses; microphone; Comsol Multiphysics; FFT; Transformator lindningar; strömpulser; mikrofon; kortslutingskrafter; Comsol Multiphysics; FFT;

    Abstract : Transformers are essential for modern power distribution system. They are efficient and enable the voltages to be transformed up for transportation of electricity and back down for consumer use. The reliability of the transformer is affected by faults and fatigue of the copper. READ MORE

  3. 22. Forecasting Electricity Prices for Intraday Markets with Machine Learning : An exploratory comparison of the state of the art

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

    Author : Panagiotis-Christos Kotsias; [2022]
    Keywords : Electricity Trading; Intraday Market; Price Forecasting; Machine Learning; Elhandel; Intradagsmarknad; Prisprognoser; Maskininlärning;

    Abstract : Electricity needs to be consumed when it is produced, making sure that supply closely meets demand at all times. To account for the rapidly changing operational status and the need for increasing the flexibility of power systems, financial instruments have been put in place creating markets where electricity is traded as a commodity across different time frames; from months or days to minutes before, or even after, planned delivery. READ MORE

  4. 23. Optimal collection grid and transmission line topology for the grid connection of an offshore multi-source park.

    University essay from Uppsala universitet/Elektricitetslära

    Author : Alfred Nerby; [2022]
    Keywords : Renewable; Wind; Solar; multi-source; park; collection grid; substation; transmission; HVAC; HVDC; converters; shunt reactors; transformer; losses; CAPEX; OPEX;

    Abstract : As spacial restrictions become more and more of an issue for renewable energy parks onshore, more developers are turning offshore to develop future production. The desire for a diversity of energy sources combined with a desire to utilize space efficiently has sparked an interest in renewable energy parks where more than one energy source occupy the space. READ MORE

  5. 24. Simulation of Transformer Inrush Currents and Their Impact on the Grid

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Juan de la Peña Toledo; [2022]
    Keywords : Transformer; Energization; PSS E; PSCAD; Simulation; Magnetizing current; Inrush current; Technology and Engineering;

    Abstract : This MSc Thesis’s main objective is to determine the impact of transformer inrush currents in the grid and develop a tool that helps E.ON Energidistribution AB evaluate transformer sizing. The motivation of E. READ MORE

  6. 25. A TECHNO-ECONOMIC FEASIBILITY STUDY OF OFFSHORE WIND-HYDROGEN PRODUCTION IN SOUTHERN SWEDEN

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Carol Hansson; [2022]
    Keywords : Wind Power; Hydrogen; Onshore; Offshore; Electrolysis; South Sweden; System; LCOE; LCOH; Subsidies; Grid connection; Case study; Techno-economic; Feasibility;

    Abstract :   To meet the energy targets and improve the lack of power and higher prices in southern Sweden, the amount of electricity must increase, and alternative fuel sources be introduced. This thesis examines the techno-economic feasibility of offshore wind-hydrogen production in southern Sweden, depending on whether an onshore- or offshore hydrogen system is used, and how grid connection subsidies would affect this. READ MORE