Sökning: "shunt reactor"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden shunt reactor.

  1. 1. A DSO-driven evaluation of a CIM profile : Development of a CIM profile based on use cases related to monitoring Vattenfalls low voltage network

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för elektroteknik

    Författare :Louise Persson; [2022]
    Nyckelord :;

    Sammanfattning : The transition to more renewable energy sources places high demands on the power systems to be more flexible, and makes it grow in complexity. This has led to a growing need of a common format or language for data exchange in power systems because of the growing number of interconnected networks operated by different companies and utilities that need to communicate on a daily basis. LÄS MER

  3. 2. Review and Design Adaptations of a SrCl2-NH3 bench-scale Thermochemical Heat Storage system

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Hjörtur Brynjarsson; [2021]
    Nyckelord :Thermochemical heat storage TCS ; SrCl2-NH3; system design; kinetics; absorption; desorption; octaammine; diammine; monoammine; pressure management; commissioning; Termokemisk värmelagring TCS ; SrCl2-NH3; systemdesign; kinetik; absorption; desorption; oktaammin; diammin; monoammin; tryckhantering; driftsättning;

    Sammanfattning : Thermochemical heat storage (TCS) is a thermal energy storage (TES) technology used to store thermal energy for later use. TCS can provide heating or cooling services from intermittently available thermal energy, often low grade waste heat. LÄS MER

  4. 3. Reaktiv effektkartläggning i distributionsnät

    Master-uppsats,

    Författare :Julius Lundqvist; [2021]
    Nyckelord :Reactive power; Power distribution; Grid modeling;

    Sammanfattning : Falbygdens Energi AB is a local grid owner in Västra Götaland county and have had an increase in the amount of cable in the grid during the last decades. This increase in cable length, combined with a lack of reactive power monitoring, has led to the reactive power situation in the grid not being fully investigated. LÄS MER

  5. 4. Emergency Power for Wind Turbine Yaw System - Project initialization tool

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Vigan Spahiu; [2020]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The Yaw Power Backup System (YPBS) is a safety system that needs to be incorporated in the Wind Power Plant (WPP) in order to provide emergency power during a power outage. The YPBS enables the Wind Turbine Generator (WTG) to perform a yawing operation in extreme weather conditions. LÄS MER

  7. 5. Eliminating zero-missing phenomenon in long, high voltage, underground cables

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Agnes Linnet; [2019]
    Nyckelord :Underground cable; zero-missing phenomenon; switching transients; shunt reactors; underexcited generators; Underjordisk kabel; nollbristande fenomen; växlingstransienter; shuntreaktorer; underexiterad generatorer;

    Sammanfattning : The maximum length of an high voltage underground cable (HV UGC) cable is oftenconstrained by the criterion that the cable cannot have more than 50% reactivepower compensation. If this limit is exceeded the current in the circuit breaker maynot have a zero crossing after energization, which is referred to as the zero missingphenomenon. LÄS MER