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      Analysis of Local Measurement-Based Algorithms for Fault Detection in a Multi-Terminal HVDC Grid 

      Pérez Molina, María José; Larruscain Escobal, Dunixe Marene ORCID; Eguía López, Pablo ORCID; Etxegarai Madina, Agurtzane (MDPI, 2019-12-17)
      One of the most important challenges of developing multi-terminal (MT) high voltage direct current (HVDC) grids is the system performance under fault conditions. It must be highlighted that the operating time of the ...
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      Current procedures and practices on grid code compliance verification of renewable power generation 

      Etxegarai Madina, Agurtzane; Eguia, Pablo ORCID; Torres Iglesias, Esther; Buigues Beraza, Garikoitz; Iturregi Aio, Araitz (Elsevier, 2017-05)
      Generation assets applying for grid connection must comply with certain grid code requirements. Grid code compliance verification shall include revision of documentation covering technical data and models, checking ...
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      Design of an Anti-Corona Device for HVAC Substation Connectors 

      Larrea Valle, Ane Miren; de la Hoz Lambraño, Manuel Antonio; Etxegarai Madina, Agurtzane; Mazón Sainz-Maza, Angel Javier ORCID; Aranzabal Santamaria, Itxaso (MDPI, 2022-08-09)
      One of the aspects to consider during high-voltage (HV) equipment design is the reduction in the probability of corona effect onset. Indeed, the corona effect is related to high electric field values beyond the equipment’s ...
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      Field validation of gap-type overhead conductor creep 

      Fernández Herrero, Elvira ORCID; Albizu Flórez, Igor ORCID; Bedialauneta Landaribar, Miren Terese; Mazón Sainz-Maza, Ángel Javier; Etxegarai Madina, Agurtzane (Elsevier, 2018-09-11)
      Gap-type overhead conductor sag-tension calculations based on experimental conductor creep tests are based on stress-strain and metallurgical creep tests. Although for bi-metallic conductors, these tests are carried out ...
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      Methodology for Tuning MTDC Supervisory and Frequency-Response Control Systems at Terminal Level under Over-Frequency Events 

      Haro Larrode, Marta; Santos Mugica, Maider; Etxegarai Madina, Agurtzane; Eguía López, Pablo ORCID (MDPI, 2020-06-01)
      This paper proposes a methodology for tuning a supervisory and frequency-response outer loop control system of a multi-terminal direct current (MTDC) grid designed to transmit offshore wind energy to an onshore AC grid, ...
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      Modelling of Resistive Type Superconducting Fault Current Limiter for HVDC Grids 

      García, Guillermo; Larruskain, D. Marene; Etxegarai Madina, Agurtzane (MDPI, 2022)
      The protection of high voltage direct current (HVDC) grids is a challenge considering that the protection system must detect, locate, and interrupt large fault currents in a few milliseconds. Resistive type superconducting ...
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      Performance of a superconducting breaker for the protection of HVDC grids 

      Etxegarai Madina, Agurtzane; Larruscain Escobal, Dunixe Marene ORCID; Iturregi Aio, Araitz; Saldaña Mulero, Gaizka; Apiñaniz, Susana (Institution of Engineering and Technology (IET) in partnership with Wiley, 2020-02-18)
      Future multi-terminal high-voltage direct current (HVDC) grids will be essential for the electric power system expansion. However, there are still several technical, economic and legal obstacles that interfere with the ...