Sökning: "LV-grid"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet LV-grid.

  1. 1. Methods to identify broken neutral fault in LV distribution grids by using existing smart meters infrastructure

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

    Författare :Christoforos Menos-Aikateriniadis; [2019]
    Nyckelord :;

    Sammanfattning : The vast majority of Swedish utility network customers for nearly a decade has been supported by Advanced Metering Management (AMM) systems, including smart meters. Vattenfall´s modern smart meters enable a new level of monitoring for LV networks and improved MV network supervision. LÄS MER

  3. 2. Charge into the Future Grid : Optimizing Batteries to Support the Future Low-Voltage Electrical Grid

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Mergim Dushku; Julius Kokko Ekholm; [2019]
    Nyckelord :Optimization; Electric Vehicle; EV; Stationary Battery System; SBS; LV-grid; Electrical Grid; Peak Load; Voltage Variations; fmincon; Future Grid; Vehicle-to-Grid; Vehicle-to-Home; Photovoltaic; PV; Control Theory; Battery; Smart Charging; Nonlinear Programming;

    Sammanfattning : The increase in electric vehicles and photovoltaic power production may introduce problems to the low-voltage distribution grid. With a higher number of electric vehicles, their accumulated charging power might breach the lowest allowed voltage level of the grid. LÄS MER

  4. 3. Failure rate prediction of low voltage networks using regression models

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

    Författare :Alexander Kolmodin; Linus Johansson; [2018]
    Nyckelord :;

    Sammanfattning : High age of low voltage grids is becoming an increasing issue. This in combinationwith a high penetration of distributed generation will increase the demandfor accurate reliability assessment of the low voltage grid. LÄS MER

  5. 4. Impact Study: Photo-voltaic Distributed Generation on Power System

    Master-uppsats, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Smrutirekha Sahoo; [2016]
    Nyckelord :DC-AC inverter; DC-DC boost converter; Dynamic PV model; Grid-connected PV system; Harmonic distortion; LV grid-modelling; Overvoltage; THD; Voltage unbalancing; VSI;

    Sammanfattning : The grid-connected photo-voltaic (PV) system is one of the most promising renewable energy solutions which offers many benefits to both the end user and the utility network and thus it has gained the popularity over the last few decades. However, due to the very nature of its invariability and weather dependencies, the large scale integration of this type of distributed generation has created challenges for the network operator while maintaining the quality of the power supply and also for reliable and safe operations of the grids. LÄS MER

  7. 5. Quality of Service Monitoring in the Low Voltage Grid by using Automated Service Level Agreements

    Master-uppsats, KTH/Industriella informations- och styrsystem

    Författare :Ward Snoeck; [2013]
    Nyckelord :;

    Sammanfattning : In the coming years, the LV grid is expected to be updated to become a 'smart grid'. More monitoring and control mechanisms will be implemented allowing a more exible market and more ecient problem solving. LÄS MER