Sökning: "HVDC"

Visar resultat 1 - 5 av 98 uppsatser innehållade ordet HVDC.

  1. 1. Evaluation of Net Transfer Capacity Reductions in the Nordic Power System

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

    Författare :Vageesh Chakrapani Manakari; [2020]
    Nyckelord :;

    Sammanfattning : The day-ahead dispatch of the Nordic power system is managed by the common electricity market Elspot, operated by Nordpool. Elspot is an area-based market and takes as input the net transfer capacity (NTC) between the price areas. LÄS MER

  2. 2. Test Automation for HVDC System Protection A Proof of Concept for ABB

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Jose Luis Ruiz Yuncosa; [2020]
    Nyckelord :;

    Sammanfattning : When a software is designed, one of the most critical aspects of the process is the verification. In most cases, this operation can betime consuming, which is why it is always needed to speed up the process by the use of automated tools to perform the task. LÄS MER

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

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

    Författare :Sadra Varshochi; [2020]
    Nyckelord :HVDC; VSC; Transient; Analytical;

    Sammanfattning : 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. LÄS MER

  4. 4. Fault current injection from power electronic interfaced devices

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

    Författare :Sandra Thengius; [2020]
    Nyckelord :;

    Sammanfattning : An increasing number of synchronous generators being replaced by renewable energy sources (RES) and HVDC links is expected in the future. HVDC links, some fast-growing renewable energy sources (RES) such as wind and solar photovoltaics, and system controllers such as STATCOM, have power- electronic interfaces to the grid. LÄS MER

  5. 5. Testing and analysis of an intelligent electronic device (IED) prototype for MTDC overhead line application

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

    Författare :Ashen Gomes; [2020]
    Nyckelord :;

    Sammanfattning : A key problem faced with the implementation of a multi-terminal direct current (MTDC) grid is fault mitigation. One method extensively researched in mitigating a fault in MTDC is to use protection intelligent electronic devices (IEDs) and fast direct current circuit breakers (DCCBs). LÄS MER