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Browsing by Subject "Geomagnetically Induced Currents"

Now showing items 1-8 of 8

    • A New Standalone Tool for DC-Equivalent Network Generation and GIC Calculation in Power Grids With Multiple Voltage Levels 

      Marsal, Santiago; Torta, Joan Miquel; Canillas-Pérez, Victoria; Curto, Juan José (Space Weather, 20, e2021SW002984, 2022-01-15)
      Space Weather phenomena pose a major socio-economic threat due, in part, to the vulnerability of power network transformers to geomagnetically induced currents (GIC). In 1985, Lehtinen and Pirjola ...

    • Data‐Driven Transfer Functions From Differential Magnetometer Measurements to Enhance GIC Model Validation Capability: A Case Study in the Spanish Power Grid 

      Marsal, Santiago; Torta, Joan Miquel; Martí, Anna; Hafizi, Raha; Piña-Varas, Perla; Marcuello, Alejandro; Ledo, Juanjo; Curto, Juan José; Queralt, Pilar; cid, Òscar; Ibañez, Miguel (Space Weather, 23, e2024SW004180, 2025-02-16)
      Geomagnetically induced currents (GICs) are unwanted currents flowing in long grounded conductors because of space weather phenomena. Example GICs are those flowing in power transmission lines via ...

    • Expected Geomagnetically Induced Currents in the Spanish Islands Power Transmission Grids 

      Torta, Joan Miquel; Marsal, Santiago; Piña-Varas, Perla; Hafizi, Raha; Martí, Anna; Campanyà, Joan; Canillas-Pérez, Victoria; Curto, Juan José; Ledo, Juanjo; Queralt, Pilar; Marcuello, Alejandro (Space Weather, 2023-05-19)
      The aim of this study is to evaluate the geomagnetically induced current (GIC) hazard in the power networks of the Canary and Balearic archipelagos. This is done in order to strictly complete the detailed ...

    • Geomagnetically induced currents in a power grid of northeastern Spain 

      Torta, Joan Miquel; Serrano, Lluís; Regué, Joan Ramon; Sánchez, Albert Miquel; Roldán, Elionor (Space Weather, 10, S06002, 2012-06-07)
      Using the geomagnetic records of Ebro geomagnetic observatory and taking the plane wave assumption for the external current source and a homogeneous Earth conductivity, a prediction of the effects of ...

    • Improving the modeling of geomagnetically induced currents in Spain 

      Torta, Joan Miquel; Marcuello, Alejandro; Campanyà, Joan; Marsal, Santiago; Queralt, Pilar; Ledo, Juanjo (2017-04-19)
      Vulnerability assessments of the risk posed by geomagnetically induced currents (GICs) to power transmission grids benefit from accurate knowledge of the geomagnetic field variations at each node of ...

    • New Detailed Modeling of GICs in the Spanish Power Transmission Grid 

      Torta, Joan Miquel; Marsal, Santiago; Ledo, Juanjo; Queralt, Pilar; Canillas-Pérez, Victoria; Piña-Varas, Perla; Curto, Juan José; Marcuello, Alejandro; Martí, Anna (2021-07-20)
      The threat of Geomagnetically Induced Currents (GICs) driven by severe Space Weather looms over technological systems such as power grids. Assessing their vulnerability is thus vital to avoid damages ...

    • Quantifying the Performance of Geomagnetically Induced Current Models 

      Marsal, Santiago; Torta, Joan Miquel (Space Weather, 17, 941–949, 2019-07-24)
      We describe a metric that has been repeatedly applied to assess the performance of models aimed at predicting geomagnetically induced currents from Space Weather events. The used parameterization, ...

    • Validating GIC Modeling in the Spanish Power Grid by Differential Magnetometry 

      Marsal, Santiago; Torta, Joan Miquel; Curto, Juan José; Cid, Òscar; Ibañez, Miguel; Marcuello, Alejandro (Space Weather, 19, e2021SW002905, 2021-11-12)
      A series of experiences and recommendations are presented concerning the derivation of geomagnetically induced currents (GIC) by use of the differential magnetometry method (DMM) under power lines. ...