Essays about: "High Voltage Direct Current"

Showing result 1 - 5 of 31 essays containing the words High Voltage Direct Current.

  1. 1. Control Strategies for VSC-HVDC links in Weak AC Systems

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Erik Björklund; [2019]
    Keywords : HVDC; VSC; voltage source converter; control theory; weak ac systems;

    Abstract : In this master thesis control systems for a voltage-source converter HVDC connected to weak ac networks are investigated. HVDC stands for high voltage direct current and is a way to transfer power in the electrical power system. READ MORE

  2. 2. Integrated generator for use in aircraft engines

    University essay from Lunds universitet/Institutionen för Energivetenskaper

    Author : Fredrik Andersson; [2018]
    Keywords : Integrated generator; aircraft engine; generator; aircraft generator; Technology and Engineering;

    Abstract : In this paper the use of integrated generators for airplane engines is examined. In order to accomplish this goal a combination of MatLab with FEMM and ANSYS Maxwell is used to make incrementally more and more detailed analysis of the integrated generator concept. READ MORE

  3. 3. 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

  4. 4. Operation and Control of HVDC Grids

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik; KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Adam Bianchi; Gabriel Nylander; [2018]
    Keywords : HVDC; grid control strategies; converter control strategies; fault simulation; HVDC; nätkontrollstrategier; omvandlarkontrollstrategier; felsimluering;

    Abstract : Meshed high-voltage direct current grids are becoming an increasingly important technology for integrating renewable energies into the power system. To control the grids in the best possible way, optimal converter and grid control strategies are needed. READ MORE

  5. 5. Modelling and Analysis of Mobile Energy Transmission for Offshore Wind Power : An analysis of flow batteries as an energy transmission system for offshore wind power

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik; Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Rasmus Lundin; Benjamin Beitler-Dorch; [2018]
    Keywords : Offshore Wind; High Voltage Direct Current; Vanadium Redox Flow Battery; Techno-economic; Transmission; Levelized Cost of Energy; Efficiency.;

    Abstract : A comparison between a traditional fixed high voltage direct current energy transmission system and a mobile transmission system utilizing vanadium redox flow batteries has been conducted in this degree work.  The purpose of this comparison was to evaluate if a mobile energy transmission system could be competitive in terms of energy efficiency and cost-effectiveness for use in offshore wind power applications. READ MORE