Essays about: "HVDC-links"

Showing result 6 - 8 of 8 essays containing the word HVDC-links.

  1. 6. Detection and location of HVDC commutation faults from PMU data

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Alejandro Belinchon Calderon; [2018]
    Keywords : HVDC-links; HVDC converters; Commutation failures; Phasor measurement units PMUs ; Electric power systems; Wide Area Measurement systems WAMS ; Standard IEEEC 37.118; Single-line to ground faults; Three-Phase faults; Fault detection and location; Nordic 32; DigSilent-PowerFactory; PSCAD; MATLAB-Simulink; Symmetrical components.; Technology and Engineering;

    Abstract : Commutation Failures in LCC HVDC converters is a topic that is normally addressed from the component perspective, looking at converters’ internal signals. How these commutation failures affect the outer AC network is not deeply understood yet. READ MORE

  3. 7. Analysis of harmonic cross-modulation in HVDC line-commutated converters for practical design purposes

    University essay from Högskolan Väst/Avdelningen för Industriell ekonomi, Elektro- och Maskinteknik

    Author : Casper Karlsson; [2018]
    Keywords : Power transmission; design; filters;

    Abstract : The use of HVDC has many benefits over HVAC for some specific power transmission purposes. However, two major problems with HVDC links are that the converters produce harmonics and consume reactive power. Electrical filters are used to compensate for this and are a major cost driver of HVDC links. READ MORE

  4. 8. Automated Curtailment of Wind Turbines during Critical Transmission Periods

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Maid Delic; [2016]
    Keywords : Technology and Engineering;

    Abstract : The Swedish energy policy is guided by two government bills which were approved by the Swedish parliament in 2009 stating that at least 50 percent of the electricity share should be provided by renewable energy sources by 2020. This thesis focuses on the wind power production and it is a part of the Smart Grid Gotland (SGG) project. READ MORE