Essays about: "VSC HVDC"

Showing result 1 - 5 of 23 essays containing the words VSC HVDC.

  1. 1. Evaluation of DC Fault Current in Grid Connected Converters in HVDC Stations

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Soham SinhaRoy; [2022]
    Keywords : Symmetrical monopole; HVDC LCC and VSC; CTL; MMC; Converter reactor; DC smoothing reactor; DC pole-to-pole fault; Peak factor; SCC; SCR; PSCAD EMTDC;

    Abstract : The main circuit equipment in an HVDC station must be rated for continuous operation as well as for stresses during ground faults and other short circuits. The component impedances are thus selected for proper operation during both continuous operation and short circuit events. READ MORE

  3. 2. Transmission Systems for Grid Connection of Offshore Wind Farms : HVAC vs HVDC Breaking Point

    University essay from

    Author : Jesper Larsson; [2021]
    Keywords : Wind power; Offshore wind; Power systems; Transmission; HVAC; Reactive power; HVDC; VSC; MMC; Breaking point; LCOE; NPV;

    Abstract : Offshore wind is rapidly growing and optimised grid connections are crucial for its success. Generally, costs and losses are higher for HVDC at short distances due to the converters, while HVAC costs and losses increase more rapidly with distance due to the ac cables. READ MORE

  4. 3. Analytical approach to dimension transient currents in asymmetric VSC monopole

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

    Author : Sadra Varshochi; [2020]
    Keywords : HVDC; VSC; Transient; Analytical;

    Abstract : As an important part of robust design of an HVDC station, all HVDC equipmentshould stay safe and sound during steady state mode as well as transientcondition. In order to have a proper dimensioning for the equipment,maximum transient stress and current should be derived and calculated byperforming transient current studies. READ MORE

  5. 4. Operation and Control of HVDC Grids

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

    Author : Henrik Johansson; Lucas Tunelid; [2020]
    Keywords : Droop control; HIL; Modular multilevelconverter MMC ; Multi-terminal HVDC MTDC grid; Powersystems; Voltage source converter VSC modeling;

    Abstract : In order to meet the increasing demand ofenergy in today’s society while at the same time minimizing theenvironmental impact, renewable energy sources will be requiredto be integrated into the existing energy mix. Technologicaladvances in high voltage direct current (HVDC) grids playa crucial role in making this possible. READ MORE

  6. 5. Design and construction of a voltage source converter for a laboratory setup

    University essay from Uppsala universitet/Elektricitetslära

    Author : Lindblom Henrik; [2019]
    Keywords : Voltage Source Converter; IGBT; HVDC; FPGA;

    Abstract : The grid stability and reliability is facing new challenges as the emerging number of intermittent renewable sources connected to the grid is increasing. With the introduction of the insulated-gate bipolar transistor, the three-phase VSC has grown more popular and is used in many applications. READ MORE