Exploració per autor "Martinez, J."

Ara es mostren els items 1-7 de 7

    • Benefits of applying nodal sampling to SMOS data over semi-enclosed seas and strongly RFI-contaminated regions 

      González Gambau, Verónica; Olmedo, Estrella; Martinez, J.; Turiel, Antonio; Corbella Sanahuja, Ignasi; Oliva, Roger; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      Radio Frequency Interferences (RFI) are still an important source of contamination in SMOS data. The application of nodal sampling (NS) to brightness temperature images helps to mitigate the degradation that RFIs produce ...

    • Comparison of two voltage control strategies for a wind power plant 

      Martinez, J.; Kjaer, P. C.; Rodríguez Cortés, Pedro; Teodorescu, Remus (IEEE, 2011)
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      Larger percentages of wind power penetration translate to more demanding requirements from grid codes. Recently, voltage support at the point of connection has been introduced by several grid codes from around the world, ...

    • Design and analysis of a slope voltage control for a DFIG wind power plant 

      Martinez, J.; Kjaer, P. C.; Rodríguez Cortés, Pedro; Teodorescu, Remus (2012-03)
      Article
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      This paper addresses a detailed design of a wind power plant and turbine slope voltage control in the presence of communication delays for a wide short-circuit ratio range operation. The implemented voltage control ...

    • Design and coordination of a capacitor and on-load tap changer system for voltage control in a wind power plant of doubly fed induction generator wind turbines 

      Martinez, J.; Rodríguez Cortés, Pedro; Kjaer, P. C.; Teodorescu, Remus (2011-05-26)
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      In this paper, a novel coordination and control strategy for capacitor banks and on-load tap changer for a wind power plant is introduced. The capacitor banks are controlled in such way that the steady-state usage of the ...

    • Short circuit signatures from different wind turbine generator types 

      Martinez, J.; Kjaer, P. C.; Rodríguez Cortés, Pedro; Teodorescu, Remus (IEEE, 2011)
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      Modern wind power plants are required and designed to ride through faults in the network, subjected to the fault clearance and following grid code demands. Beside voltage support during faults, the wind turbine fault ...

    • SMOS salinity retrievals enhancement in coastal areas by joint application of nodal sampling and corrected correlator efficiency 

      González Gambau, V.; Olmedo, Edson; Martinez, J.; Turiel Martínez, Antonio; Durán Martínez, Israel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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      This work is focused on the quality improvement of ESA's SMOS (Soil Moisture and Ocean Salinity) salinity retrievals, paying special attention to coastal regions. Two correction techniques have been applied to enhance the ...

    • Var reserve concept applied to a wind power plant 

      Martinez, J.; Kjaer, Philip Carne; Rodríguez Cortés, Pedro; Teodorescu, Remus (IEEE, 2011)
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      wind power plants. This paper proposes two different VAr reserve control strategies for a wind power plant. The amount of dynamic VAr available most of the operation time, makes the wind power plant (WPP) a good candidate ...